Kidney tumours
Kidney tumours - includes malignant kidney tumours and benign kidney tumours. Medical renal diseases are dealt with in the medical renal diseases article.
Renal specimens
- Renal biopsy - usually for renal onocytoma vs. renal cell carcinoma (RCC) or medical diseases - see medical kidney.
- Partial nephrectomy.
- Nephrectomy.
- Nephroureterectomy (includes ureter) - done for urothelial cell carcinoma (UCC) of the renal pelvis and ureteric UCC.
- Radical nephrectomy (includes the adrenal gland).
In excisions done for tumours, a comment should be made about kidney distant from the tumour. People with less renal mass, i.e. less kidney, are predisposed to focal segmental glomerulosclerosis (FSGS).[1]
Anatomy
The anatomy is important for properly staging renal neoplasms.
Layers (superficial to deep):
- Renal fascia (Gerota's fascia).
- Perinephric fat.
- Renal capsule.
- Renal parenchyma (cortex).
Tabular comparison (selected tumours)
Selected common tumours of the kidney:[2][3]
Clear cell RCC | Papillary RCC type 1 |
Papillary RCC type 2 |
Chromophobe RCC classic variant |
Chromophobe RCC eosinophilic variant |
Oncocytoma | |
Gross | Golden yellow, solid | friable | friable | light brown | light brown | mahogany/brown, +/-central scar |
Architecture | nests, sheets | papillary, simple | papillary, pseudostratified |
nests, sheets | nests, sheets | nests, sheets |
Nuclear atypia | low-high typically medium-high |
low-medium | medium-high | low-high, "raisinoid" nuc. membrane |
low-high, "raisinoid" nuc. membrane |
low-medium, round nuclei |
Cytoplasm | clear | eosinophilic | eosinophilic | cobwebs/clear | eosinophilic/cobwebs | eosinophilic/ granular & abundant |
Other | delicate vessels, necrosis common |
histiocytes in fibrovascular cores, >0.5 cm |
histiocytes in fibrovascular cores, >0.5 cm |
perinuclear clearing, thick vessels | perinuclear clearing, thick vessels | in loose fibrous/hyaline stroma |
IHC | CK7-, EMA+ | AMACR+, EMA+, CK7+ | AMACR+, E-cadherin+, CK7- | CD117+, CK7+ (membrane) | CD117+, CK7+ (membrane) | Vimentin-, EMA+ |
Main DDx | chromophobe classic variant |
PaRCC type 2, mets | PaRCC type 1, mets | clear cell RCC | oncocytoma | chromophobe eosinophilic variant |
Key features | clear cells, vascular | papillae, histiocytes simple epithelium |
papillae, histiocytes, stratified |
perinuc. clearing, wispy cytoplasm |
perinuc. clearing, wispy eosinophilic cytoplasm |
eosinophilic, granular cytoplasm |
Image(s) | CCRCC (WC) | PaRCC - intermed. (WC), PaRCC - high (WC) | ChRCC (WC) | Oncocytoma (WC) |
Notes:
- Cell shape: all have epithelioid morphology.
Tabular comparison of oncocytoma and chromophobe RCC
Histomorphologic features useful to distinguish chromophobe RCC (eosinophilic variant) and oncocytoma:[4]
ChRCC (eosinophilic variant) |
Renal oncocytoma | |
Nuclear morphology | "raisinoid"/wrinkled appearance | round with small nucleolus, usu. little size variation |
Multinucleation | common - binucleation | uncommon |
Chromatin | coarse | fine |
Architecture | solid, crowded nests | spaced nests / archipelago-like, solid |
Cytoplasm | perinuclear halo, may be focal | no perinuclear halo |
Degenerative foci (focal atypia & pleomorphism) |
absent | present in ~20% of cases |
Image | ChRCC (WC) | Oncocytoma (WC) |
Renal cell carcinoma
Overview
General
- Relatively common form of cancer.
- Often abbreviated RCC.
Origin
- Proximal renal tubule.
Clinical
- Classically described as a triad:[5]
- Hematuria (most common symptom).
- Abdominal mass.
- Flank pain.
- Frequently picked-up on imaging (incidentaloma) ~ 1/3 of cases.
Risk factors
- Smoking.
- Some chemicals.
- Hemodialysis.
- Male>female (~2:1).
- Hereditary - familial syndromes (see Hereditary RCC).
Subtypes of RCC
RCC (renal cell carcinoma) comes in different subtypes:[6]
- Clear cell carcinoma (70-80% of RCC) -- abbrev. CCRCC,
- Papillary renal cell carcinoma (10-15% of RCC) -- abbrev. PRCC,
- Chromophobe renal carcinoma (5% of RCC) -- abbrev. ChRCC,
- Collecting duct (Bellini duct) carcinoma (1% of RCC).
Notes:
- Subtype is an independent predictor of mortality - but adds very little to multivariate models with staging information.[7]
- CCRCC tends to be worse than ChRCC and PRCC, probably due to higher incidence of mets.[8]
IHC - is it RCC?
- RCC Ma (+), CD10 (+) -- specific for RCC[9]
IHC - differentiation of types
- Clear cell RCC vs. papillary RCC:
- CK7 (-ve CCRCC), AMACR (+ve in PRCC).[10]
- Papillary RCC type 1 vs. papillary RCC type 2:
- ChRCC vs. oncocytoma (ONC):
- CK7 (ChRCC +ve membrane), CK20, CD15.[10]
- CK7 -- ChRCC 86% +ve vs. ONC 0% +ve.[12]
- CD15 -- ChRCC 11% +ve vs. ONC 57% +ve.[13]
- Hale's colloidal iron +ve in ChRCC, usually neg. in ONC.[14]
- PAX2 -- ChRCC (1/11) +ve vs. ONC (20/23) +ve.[15]
- Kidney-specific cadherin (Ksp-cadherin) -- ChRCC 97% +ve (distinctive membrane pattern) vs. ONC only 3% +ve.[16]
- ChRCC & renal oncocytoma vs. others:
- CD117 (ckit) +ve (100% membrane, ~75% cytoplasmic).[17]
- Clear cell RCC vs. chromophobe RCC:
- Hale's colloidal iron (+ve in ChRCC).[14]
- CK7 (cell membrane +ve in ChRCC).
Notes:
- One paper[18] describes CD10, parvalbumin, AMACR, CK7 and S100A1 as being useful.
- Another paper I came across:[19]
- c-kit (CD117) not useful for differentiating ONC and ChRCC.[15]
- E-cadherin not useful for differentiating ChRCC and ONC.[20]
Hereditary RCC
The classics - which are all autosomal dominant:[6]
- Von Hippel-Lindau syndrome (clear cell tumours).
- Hereditary clear cell carcinoma (VHL gene).
- Hereditary papillary carcinoma (MET proto-oncogene mutation).
Others:
- Hereditary papillary carcinoma (TFE3 related translocations).[21]
Grading RCC
General
Some subtypes are graded based on the Fuhrman system which considers:[22]
- Nuclear pleomorphism (size, shape),
- Chromatin pattern,
- Nucleoli prominence.
Notes:
- The system was validated for clear cell RCC.
- Fuhrman nuclear grade is not prognostic in chromophobe RCC and should not be used in that context.[23]
Criteria & grades
- Grade 1: no nucleoli, near 'normal' appearance.
- Grade 2: finely granular chromatin (key feature), no nuclei visible with 10x objective lens.
- Grade 3: nucleoli seen easily (key feature).
- Grade 4: prominent pleomorphism (key feature), hyperchromasia, macronucleoli.
Note: Most tumours are grade 2 & 3.
Fuhrman grading in short
- 1 vs. 2: grade 2 has granular chromatin, grade 2 has nucleoli visible @ 20x objective.[24]
- 2 vs. 3: grade 3 has nucleoli @ 10x objective.
- 3 vs. 4: grade 4 has pleomorphism/hyperchromasia.
Clear cell carcinoma
Gross
- Gold/yellow.
- +/-Haemorrhage (common).
- +/-Necrosis (common in large tumours).
Microscopic
Features:[25]
- Clear cells.
- Solid or trabecular pattern.
- Delicate branching vasculature.
- Hyaline bodies common.[26]
- Not common in papillary RCC.
IHC
- CK7 -ve.
- CK20 -ve.
- Hale's colloidal iron -ve.
- +ve in chromophobe.
Note: Hale's colloidal iron does not stain iron... it stains hemosiderin.[27] Clear cell vs. chromophobe:
- Chromophobe: "translucent" (NOT quite clear), reticulated, +Hale's colloidal iron stain, CK7+ (cell membrane).
Clear cell vs. adrenocortical carcinoma:
- ACC: EMA- (epithelial membrane antigen), cytokeratin mostly neg., inhibin+ (neg. in RCC).[28]
Papillary RCC
General
- Often subclassified[29] into type 1 and type 2 -- see below.
- May be abbreviated PRCC.
Epidemiology
- Associated with dialysis associated cystic disease.[30]
Microsopy
Features:[31]
- Cuboidal or low columnar cell in papillae.
- Interstitial foam cells in vascular cores - key feature.[32]
- Most sensitive and specific feature of PRCC.[33]
- Highly vascular.
Mnemonic HIP: highly vascular, interstitial foam cells, papillae.
Size criterion:
- Papillary lesions must be >0.5 cm to be called carcinoma; smaller lesions (<=0.5 cm) are called papillary adenomas.[34]
Histological subtyping:[29]
- Type 1 - single layer of cells on basement membrane.
- usually low grade nuclear features, i.e. low Fuhrman grade.
- Type 2 - pseudostratification of cells.
- Usually high grade nuclear features, i.e. high Fuhrman grade.
IHC
Features:[29]
- AMACR +ve.[35]
- HMWCK (34betaE12) +ve.
- Panker (AE1/AE3) +ve.
- CK7 +ve ~90% of type 1, 20% of type 2.
More reading:
Clear cell vs. papillary
- Papillary: +histiocytes, +intracellular hemosiderin, CK7+.
Chromophobe RCC
General
- Sometimes abbreviated ChRCC.
There are two subtypes:[36]
- Classic.
- Eosinophilic variant.
Gross
- Tan, light-brown.
- Solitary.
- Well-circumscribed.
Microscopy
Classic Histo.[37][36], 3 P's mnemonic:
- Pale cytoplasm, with wisps of eosinophilic material; the cells are not completely clear, they have "cobwebs".
- Perinuclear clearing, i.e. a pale halo surrounds the nucleus - key feature.
- Periphery of cell distinct, i.e. cell membrane is easy to discern.
Eosinophilic variant:[36]
- Eosinophilic (finely granular) cytoplasm.
- Perinuclear clearing - key feature.
- Periphery of cell distinct.
- Smaller cells than classic subtype.
Notes:
- May have psammoma bodies.
Image: Oncocytic chromophobe RCC (wikimedia.org).
IHC
- CK7 +ve cell membrane.[36]
DDx:
- May appear similar to oncotyoma -- particularily the eosinophilic variant.
- IHC: CK7: chromophobe = cell membrane CK7+; oncoctyoma = patchy cytoplasmic +ve
- Classic ChRCC may be challenging to differentiate from clear cell RCC.
- Perinuclear clearing is not seen in clear cell RCC.
- ChRCC has wisps in the cytoplasm
Urothelial cell carcinoma
- Clinically/radiologically, it may not be possible to differentiate renal pelvis UCC and RCC if the tumour is large.
- Pathologically, this is not very difficult.
- On gross specimens, it is almost always obvious what one is dealing with:
- UCC = nephroureterectomy.
- RCC = partial nephrectomy, nephrectomy or radical nephrectomy.
Benign & mimics
Oncocytoma
General
- Can be difficult to distinguish radiologically from RCC (chromophobe subtype).
- ... and pathologists occasionally struggle like the radiologists.
- Benign tumour - the reason it is excised is... one cannot be certain it isn't a RCC.
Gross
- Brown, mahogany brown.
- 1/3 have a characteristic central scar.[38]
Image: Renal oncocytoma with central scar (wikipedia.org).
Histology
Features:
- Eosinophilic cytoplasm - slightly granular key feature.
- Cells arranged in nests.
- Nuclei uniform and round.[38]
- Slightly enlarged nuclei, but no significant pleomorphism (size variation) - important.
Notes:
- May look like eosinophilic variant of chromophobe RCC -- this is the main DDx.
- May need IHC to differentiate (CK7: oncocytoma = cytoplasm +ve, chromophobe = cell membrane +ve).
- No perinuclear clearing -- this is seen in ChRCC.
Images:
Angiomyolipoma
General
- Mostly benign mesenchymal tumour.
- Presentations: flank pain, hematuria, incidentaloma.[39]
- AMLs occur may be elsewhere in the body, e.g. liver,[40] but are most common in the kidney.
- In the PEComa group of tumours.
Epidemiology
- May be associated with tuberous sclerosis -- 70% have an AML.
- When compared to sporadic cases:
- More often bilateral.
- Usually bigger.
- When compared to sporadic cases:
Microscopy
- Muscle.
- Adipose tissue - not always present.[41]
- Blood vessels.
Cytologic features[41]
- Nuclei - round/ovoid.
- Chromatin - bland.
IHC
Additional paper: [41]
Notes:
- There is a suggestion that an epithelioid variant is more worisome,[43] but this is not the case in all studies.[44]
Ki-67 can be used to help distinguish btw 'em -- epithelioid variant Ki-67 +ve.[45]
Xanthogranulomatous pyelonephritis
General
- May mimic RCC (esp. radiologically).
- Usually lower pole ???
- Associated with:
- Occasionally an indication of nephrectomy.[46][47]
- Most common organism (in the context of nephrectomy specimens) - Proteus mirabilis.[47]
Microscopy
- Abundant macrophages.
- +/-Giant cells.
Image:
IHC
- CD68 +ve.
- RCC markers (CD10, RCC) all negative.
DDx:
- Malakoplakia.
- Basophilic inclusions -- inside or outside of macrophages - often size of RBC or larger (Michaelis-Gutmann bodies).
- RCC - esp. PaRCC (as this has foamy macrophages).
- Granulomatous disease.
Malakoplakia
Rare stuffs
Medullary fibroma
General
- Rare.
Epidemiology
- Benign.
Gross
- Small, white well circumscribed nodule in medulla.
Microscopy
- Spindle cells.
Metanephric adenoma
General
- Benign.
Micro
Features:
- Small uniform cells with:
- Fine chromatin.
- No apparent nucleolus.
- A relatively smooth nuclear membrane.
- Variable architecture - may be sheets or ductal.
DDx:
- Wilm tumour (nephroblastoma) - these typically have:
- Irregular nuclear membrane.
- Nucleoli.
- Mitoses.
Images:
Cystic nephroma
General
- AKA renal epithelial stromal tumour (REST) and mixed epithelial stromal tumour (MEST).
- Rare - approx. 1.5% of renal neoplasms.[48]
- Benign.
- Prevalence: males > females.
Microscopic
Features:
- Cysts lined by simple epithelium with hobnailing.
- Stroma has an ovarian look:
- Blue (basophilic).
- Spindle cells.
Imagea:
IHC
Features:[48]
- ER +ve.
- PR +ve.
- CD10 +ve.
DDx
- Tubulocystic carcinoma.
Renal mucinous tubular and spindle cell carcinoma
General
Microscopy
Features:[50]
- Mucin - may be scant.
- Spindle cells.
DDx:
- Sarcomatoid papillary RCC. (???) [51]
IHC
Features:[52]
- CD10 -ve.
- AE1/AE3 +ve.
- AMACR +ve.
- CK7 +ve.
Collecting duct carcinoma
Epidemiology
- Rare.
Microscopy
Features:[53]
- Tubular structures with tapered ends.
- High grade nuclear features (nuclear pleomorphism).
- High mitotic rate.
- Hobnail pattern - cell width smaller at basement membrane than free surface ??? [54]
Renal medullary carcinoma
General
- Rare.
- Assoc. with sickle cell trait and sickle cell anemia.[55]
Gross
Features:[56]
- Well circumscribed.
- Medulla.
Microscopic
- Variable architecture:
- Adenoid cystic carcinoma-like appearance:
- Cystic spaces.
- Yolk sac-like.
- Tubular.
- Adenoid cystic carcinoma-like appearance:
- Desmoplastic stroma.
- Inflammation:
- Lymphocytes.
- Neutrophils - margination in vessels.
Kidney disease assoc. with sickle cell disorders:[55]
- Papillary necrosis.
- Nephrotic syndrome.
- Renal infarction.
- Pyelonephritis.
Pediatric
Wilms tumour
- AKA nephroblastoma, AKA Wilms' tumour.
General
Gross
- Lobulated tan mass.
Image: Wilms tumour (med.utah.edu).
Microscopic
Features - classically three components:
- Malignant small round blue cells:
- Size = ~ 2x RBC diameter.
- Nuclear pleomorphism (variation of size, shape and staining).
- Irregular nuclear membrane - important.
- Scant/difficult to discern cytoplasm - basophilic (light blue).
- Mitoses - common.
- Stroma:
- Spindle cells:
- Elliptical nuclear membrane.
- Abundant loose cytoplasm.
- Spindle cells:
- Tubular structures:
- Usually clustered.
- Vaguely resemble a glomerulus.
- Usu. have a central (clear/white) space surrounded by a rim of intensely eosinophilic cytoplasm.
- Nuclei of tubular structures often elongated and palisaded.
Other findings:
- Commonly seen in association with nephrogenic rests.
- Cluster of cells small (blue) cells; lack nuclear atypia seen in Wilms tumour.[61]
DDx:
- Metanephric adenoma.
- Nephrogenic nests.
- Other small round cell tumours.
- Synovial sarcoma - esp. in adults.
Notes:
- +/-Distinct nucleoli. (???)
- Palisade = fence made of stakes driven into the ground.[62]
- Approximately 30-40% Wilms tumour cases have nephrogenic rests.[63]
Images:
- Nephrogenic rests (biologydisease.com).
- Wilms tumour (webpathology.com).
- Wilms tumour - low mag. (WC).
- Wilms tumour - very high mag. (WC).
Anaplasia
Any of the following:
- Atypical mitoses.
- Hyperchromasia.
- Nuclear size variation (of the tumour cells) > 3x.
IHC
- WT-1 +ve.
See also
- Urinary bladder.
- Medical kidney.
- Malakoplakia - yellow lesion on gross; may mimic RCC.
References
- ↑ NEED REF.
- ↑ Zhou, Ming; Magi-Galluzzi, Cristina (2006). Genitourinary Pathology: A Volume in Foundations in Diagnostic Pathology Series (1st ed.). Churchill Livingstone. pp. 281-304. ISBN 978-0443066771.
- ↑ 3.0 3.1 Srigley, JR.; Delahunt, B. (Jun 2009). "Uncommon and recently described renal carcinomas.". Mod Pathol 22 Suppl 2: S2-S23. doi:10.1038/modpathol.2009.70. PMID 19494850.
- ↑ Tickoo, SK.; Amin, MB. (Dec 1998). "Discriminant nuclear features of renal oncocytoma and chromophobe renal cell carcinoma. Analysis of their potential utility in the differential diagnosis.". Am J Clin Pathol 110 (6): 782-7. PMID 9844591.
- ↑ Schmid HP, Szabo J (May 1997). "[Renal cell carcinoma--a current review]" (in German). Praxis (Bern 1994) 86 (20): 837?3. PMID 9312811.
- ↑ 6.0 6.1 Cotran, Ramzi S.; Kumar, Vinay; Fausto, Nelson; Nelso Fausto; Robbins, Stanley L.; Abbas, Abul K. (2005). Robbins and Cotran pathologic basis of disease (7th ed.). St. Louis, Mo: Elsevier Saunders. pp. 1016. ISBN 0-7216-0187-1.
- ↑ Capitanio, U.; Cloutier, V.; Zini, L.; Isbarn, H.; Jeldres, C.; Shariat, SF.; Perrotte, P.; Antebi, E. et al. (Jun 2009). "A critical assessment of the prognostic value of clear cell, papillary and chromophobe histological subtypes in renal cell carcinoma: a population-based study.". BJU Int 103 (11): 1496-500. doi:10.1111/j.1464-410X.2008.08259.x. PMID 19076149.
- ↑ Delahunt, B.; Bethwaite, PB.; Nacey, JN. (Oct 2007). "Outcome prediction for renal cell carcinoma: evaluation of prognostic factors for tumours divided according to histological subtype.". Pathology 39 (5): 459-65. doi:10.1080/00313020701570061. PMID 17886093.
- ↑ Zhou M, Roma A, Magi-Galluzzi C (June 2005). "The usefulness of immunohistochemical markers in the differential diagnosis of renal neoplasms". Clin. Lab. Med. 25 (2): 247?7. doi:10.1016/j.cll.2005.01.004. PMID 15848735.
- ↑ 10.0 10.1 Zhou M, Roma A, Magi-Galluzzi C (June 2005). "The usefulness of immunohistochemical markers in the differential diagnosis of renal neoplasms". Clin. Lab. Med. 25 (2): 247?7. doi:10.1016/j.cll.2005.01.004. PMID 15848735.
- ↑ 11.0 11.1 Langner C, Ratschek M, Rehak P, Schips L, Zigeuner R (February 2004). "Expression of MUC1 (EMA) and E-cadherin in renal cell carcinoma: a systematic immunohistochemical analysis of 188 cases". Mod. Pathol. 17 (2): 180?. doi:10.1038/modpathol.3800032. PMID 14657952.
- ↑ Liu L, Qian J, Singh H, Meiers I, Zhou X, Bostwick DG (August 2007). "Immunohistochemical analysis of chromophobe renal cell carcinoma, renal oncocytoma, and clear cell carcinoma: an optimal and practical panel for differential diagnosis". Arch. Pathol. Lab. Med. 131 (8): 1290?. PMID 17683191. http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0003-9985&volume=131&page=1290.
- ↑ Pan CC, Chen PC, Ho DM (November 2004). "The diagnostic utility of MOC31, BerEP4, RCC marker and CD10 in the classification of renal cell carcinoma and renal oncocytoma: an immunohistochemical analysis of 328 cases". Histopathology 45 (5): 452?. doi:10.1111/j.1365-2559.2004.01962.x. PMID 15500648.
- ↑ 14.0 14.1 Geramizadeh B, Ravanshad M, Rahsaz M (2008). "Useful markers for differential diagnosis of oncocytoma, chromophobe renal cell carcinoma and conventional renal cell carcinoma". Indian J Pathol Microbiol 51 (2): 167?1. PMID 18603673. http://www.ijpmonline.org/article.asp?issn=0377-4929;year=2008;volume=51;issue=2;spage=167;epage=171;aulast=Geramizadeh.
- ↑ 15.0 15.1 Memeo L, Jhang J, Assaad AM, et al. (February 2007). "Immunohistochemical analysis for cytokeratin 7, KIT, and PAX2: value in the differential diagnosis of chromophobe cell carcinoma". Am. J. Clin. Pathol. 127 (2): 225–9. doi:10.1309/9KWEA4W9Y94D1AEE. PMID 17210525. http://ajcp.ascpjournals.org/cgi/pmidlookup?view=long&pmid=17210525.
- ↑ Mazal PR, Exner M, Haitel A, et al. (January 2005). "Expression of kidney-specific cadherin distinguishes chromophobe renal cell carcinoma from renal oncocytoma". Hum. Pathol. 36 (1): 22–8. doi:10.1016/j.humpath.2004.09.011. PMID 15712178.
- ↑ Krueger S, Sotlar K, Kausch I, Horny HP (2005). "Expression of KIT (CD117) in renal cell carcinoma and renal oncocytoma". Oncology 68 (2-3): 269-75. doi:10.1159/000086783. PMID 16015044.
- ↑ Martignoni G, Brunelli M, Gobbo S, et al (February 2007). "Role of molecular markers in diagnosis and prognosis of renal cell carcinoma". Anal. Quant. Cytol. Histol. 29 (1): 41?. PMID 17375873.
- ↑ Avery AK, Beckstead J, Renshaw AA, Corless CL (February 2000). "Use of antibodies to RCC and CD10 in the differential diagnosis of renal neoplasms". Am. J. Surg. Pathol. 24 (2): 203?0. PMID 10680888. http://meta.wkhealth.com/pt/pt-core/template-journal/lwwgateway/media/landingpage.htm?issn=0147-5185&volume=24&issue=2&spage=203.
- ↑ Kim MK, Kim S (December 2002). "Immunohistochemical profile of common epithelial neoplasms arising in the kidney". Appl. Immunohistochem. Mol. Morphol. 10 (4): 332–8. PMID 12613443.
- ↑ URL: http://www.ncbi.nlm.nih.gov/omim/314310. Accessed on: 16 June 2010.
- ↑ Zhou, Ming; Magi-Galluzzi, Cristina (2006). Genitourinary Pathology: A Volume in Foundations in Diagnostic Pathology Series (1st ed.). Churchill Livingstone. pp. 282. ISBN 978-0443066771.
- ↑ Brovkina AF, Val'skii VV (1991). "[Computer tomography in the diagnosis of intraocular melanomas]" (in Russian). Vestn Oftalmol 107 (4): 39–42. PMID 1949485.
- ↑ AE. June 2010.
- ↑ Cotran, Ramzi S.; Kumar, Vinay; Fausto, Nelson; Nelso Fausto; Robbins, Stanley L.; Abbas, Abul K. (2005). Robbins and Cotran pathologic basis of disease (7th ed.). St. Louis, Mo: Elsevier Saunders. pp. 1017-8. ISBN 0-7216-0187-1.
- ↑ AFIP Renal Tumours Book.
- ↑ Latta. 27 January 2009.
- ↑ Zhou, Ming; Magi-Galluzzi, Cristina (2006). Genitourinary Pathology: A Volume in Foundations in Diagnostic Pathology Series (1st ed.). Churchill Livingstone. pp. 285. ISBN 978-0443066771.
- ↑ 29.0 29.1 29.2 Zhou, Ming; Magi-Galluzzi, Cristina (2006). Genitourinary Pathology: A Volume in Foundations in Diagnostic Pathology Series (1st ed.). Churchill Livingstone. pp. 289. ISBN 978-0443066771.
- ↑ Cotran, Ramzi S.; Kumar, Vinay; Fausto, Nelson; Nelso Fausto; Robbins, Stanley L.; Abbas, Abul K. (2005). Robbins and Cotran pathologic basis of disease (7th ed.). St. Louis, Mo: Elsevier Saunders. pp. 1017-8. ISBN 0-7216-0187-1.
- ↑ Cotran, Ramzi S.; Kumar, Vinay; Fausto, Nelson; Nelso Fausto; Robbins, Stanley L.; Abbas, Abul K. (2005). Robbins and Cotran pathologic basis of disease (7th ed.). St. Louis, Mo: Elsevier Saunders. pp. 1017-8. ISBN 0-7216-0187-1.
- ↑ ALS Feb 9, 2009.
- ↑ Granter SR, Perez-Atayde AR, Renshaw AA (October 1998). <303::AID-CNCR6>3.0.CO;2-7 "Cytologic analysis of papillary renal cell carcinoma". Cancer 84 (5): 303?8. PMID 9801205. http://dx.doi.org/10.1002/(SICI)1097-0142(19981025)84:5<303::AID-CNCR6>3.0.CO;2-7.
- ↑ Zhou, Ming; Magi-Galluzzi, Cristina (2006). Genitourinary Pathology: A Volume in Foundations in Diagnostic Pathology Series (1st ed.). Churchill Livingstone. pp. 288. ISBN 978-0443066771.
- ↑ ALS Feb 9, 2009.
- ↑ 36.0 36.1 36.2 36.3 Zhou, Ming; Magi-Galluzzi, Cristina (2006). Genitourinary Pathology: A Volume in Foundations in Diagnostic Pathology Series (1st ed.). Churchill Livingstone. pp. 293. ISBN 978-0443066771.
- ↑ Cotran, Ramzi S.; Kumar, Vinay; Fausto, Nelson; Nelso Fausto; Robbins, Stanley L.; Abbas, Abul K. (2005). Robbins and Cotran pathologic basis of disease (7th ed.). St. Louis, Mo: Elsevier Saunders. pp. 1016-7. ISBN 0-7216-0187-1.
- ↑ 38.0 38.1 Zhou, Ming; Magi-Galluzzi, Cristina (2006). Genitourinary Pathology: A Volume in Foundations in Diagnostic Pathology Series (1st ed.). Churchill Livingstone. pp. 302. ISBN 978-0443066771.
- ↑ Seyam, RM.; Bissada, NK.; Kattan, SA.; Mokhtar, AA.; Aslam, M.; Fahmy, WE.; Mourad, WA.; Binmahfouz, AA. et al. (Nov 2008). "Changing trends in presentation, diagnosis and management of renal angiomyolipoma: comparison of sporadic and tuberous sclerosis complex-associated forms.". Urology 72 (5): 1077-82. doi:10.1016/j.urology.2008.07.049. PMID 18805573.
- ↑ Zhang, SH.; Cong, WM.; Xian, ZH.; Wu, WQ.; Dong, H.; Wu, MC. (Oct 2004). "[Morphologic variants and immunohistochemical features of hepatic angiomyolipoma.]". Zhonghua Bing Li Xue Za Zhi 33 (5): 437-40. PMID 15498214.
- ↑ 41.0 41.1 41.2 Crapanzano, JP. (Jan 2005). "Fine-needle aspiration of renal angiomyolipoma: cytological findings and diagnostic pitfalls in a series of five cases.". Diagn Cytopathol 32 (1): 53-7. doi:10.1002/dc.20179. PMID 15584043.
- ↑ 42.0 42.1 Zhou, Ming; Magi-Galluzzi, Cristina (2006). Genitourinary Pathology: A Volume in Foundations in Diagnostic Pathology Series (1st ed.). Churchill Livingstone. pp. 324. ISBN 978-0443066771.
- ↑ Nelson, CP.; Sanda, MG. (Oct 2002). "Contemporary diagnosis and management of renal angiomyolipoma.". J Urol 168 (4 Pt 1): 1315-25. doi:10.1097/01.ju.0000028200.86216.b2. PMID 12352384.
- ↑ Aydin, H.; Magi-Galluzzi, C.; Lane, BR.; Sercia, L.; Lopez, JI.; Rini, BI.; Zhou, M. (Feb 2009). "Renal angiomyolipoma: clinicopathologic study of 194 cases with emphasis on the epithelioid histology and tuberous sclerosis association.". Am J Surg Pathol 33 (2): 289-97. doi:10.1097/PAS.0b013e31817ed7a6. PMID 18852677.
- ↑ Ooi, SM.; Vivian, JB.; Cohen, RJ. (2009). "The use of the Ki-67 marker in the pathological diagnosis of the epithelioid variant of renal angiomyolipoma.". Int Urol Nephrol 41 (3): 559-65. doi:10.1007/s11255-008-9473-1. PMID 18839327.
- ↑ 46.0 46.1 Afgan F, Mumtaz S, Ather MH (2007). "Preoperative diagnosis of xanthogranulomatous pyelonephritis". Urol J 4 (3): 169–73. PMID 17987581.
- ↑ 47.0 47.1 47.2 Al-Ghazo MA, Ghalayini IF, Matalka II, Al-Kaisi NS, Khader YS (October 2006). "Xanthogranulomatous pyelonephritis: Analysis of 18 cases". Asian J Surg 29 (4): 257–61. PMID 17098659.
- ↑ 48.0 48.1 PMID 17454754. Cite error: Invalid
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tag; name "pmid17454754" defined multiple times with different content - ↑ Geramizadeh B, Salehipour M, Moradi A (2009). "Mucinous tubular and spindle cell carcinoma of kidney: a rare case report and review of the literature". Indian J Pathol Microbiol 52 (4): 514–6. doi:10.4103/0377-4929.56144. PMID 19805959.
- ↑ Trabelsi A, Stita W, Yacoubi MT, Rammeh S, Hmissa S, Korbi S (December 2008). "Renal mucinous tubular and spindle cell carcinoma". Can Urol Assoc J 2 (6): 635–6. PMC 2593603. PMID 19066686. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2593603/.
- ↑ Dhillon J, Amin MB, Selbs E, Turi GK, Paner GP, Reuter VE (January 2009). "Mucinous tubular and spindle cell carcinoma of the kidney with sarcomatoid change". Am. J. Surg. Pathol. 33 (1): 44–9. doi:10.1097/PAS.0b013e3181829ed5. PMID 18941398.
- ↑ Ferlicot S, Allory Y, Compérat E, et al. (December 2005). "Mucinous tubular and spindle cell carcinoma: a report of 15 cases and a review of the literature". Virchows Arch. 447 (6): 978–83. doi:10.1007/s00428-005-0036-x. PMID 16231179.
- ↑ Zhou, Ming; Magi-Galluzzi, Cristina (2006). Genitourinary Pathology: A Volume in Foundations in Diagnostic Pathology Series (1st ed.). Churchill Livingstone. pp. 295. ISBN 978-0443066771.
- ↑ Cotran, Ramzi S.; Kumar, Vinay; Fausto, Nelson; Nelso Fausto; Robbins, Stanley L.; Abbas, Abul K. (2005). Robbins and Cotran pathologic basis of disease (7th ed.). St. Louis, Mo: Elsevier Saunders. pp. 1018. ISBN 0-7216-0187-1.
- ↑ 55.0 55.1 55.2 Davis CJ, Mostofi FK, Sesterhenn IA (January 1995). "Renal medullary carcinoma. The seventh sickle cell nephropathy". Am. J. Surg. Pathol. 19 (1): 1–11. PMID 7528470.
- ↑ 56.0 56.1 Watanabe IC, Billis A, Guimarães MS, et al. (September 2007). "Renal medullary carcinoma: report of seven cases from Brazil". Mod. Pathol. 20 (9): 914–20. doi:10.1038/modpathol.3800934. PMID 17643096.
- ↑ URL: http://emedicine.medscape.com/article/989398-overview. Accessed on: 9 March 2011.
- ↑ Online 'Mendelian Inheritance in Man' (OMIM) 194072
- ↑ Online 'Mendelian Inheritance in Man' (OMIM) 130650
- ↑ Online 'Mendelian Inheritance in Man' (OMIM) 194080
- ↑ URL: http://www.pathconsultddx.com/pathCon/diagnosis?pii=S1559-8675%2806%2970416-8. Accessed on: 28 March 2011.
- ↑ URL: http://www.thefreedictionary.com/palisaded. Accessed on: 2 February 2011.
- ↑ Coppes MJ, Haber DA, Grundy PE (September 1994). "Genetic events in the development of Wilms' tumor". N. Engl. J. Med. 331 (9): 586–90. doi:10.1056/NEJM199409013310906. PMID 8047084.