Difference between revisions of "Adenocarcinoma of the rete testis"

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| LMDDx      = [[adenomatous hyperplasia of the rete testis]], [[Sertoli cell tumour]], [[malignant mesothelioma]], metastasis
| LMDDx      = [[adenomatous hyperplasia of the rete testis]], [[Sertoli cell tumour]], [[malignant mesothelioma]], metastasis
| Stains    =
| Stains    =
| IHC        = EMA +ve, CK7 +ve, PSA -ve, calretinin -ve, CK5/6 -ve, PLAP -ve, AFP -ve, CD30 -ve
| IHC        = EMA +ve, [[CK7]] +ve, PSA -ve, calretinin -ve, CK5/6 -ve, PLAP -ve, [[AFP]] -ve, CD30 -ve
| EM        =
| EM        =
| Molecular  =
| Molecular  =
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| Gross      = hilar mass
| Gross      = hilar mass
| Grossing  = [[orchiectomy grossing]]
| Grossing  = [[orchiectomy grossing]]
| Site      = [[testis]] - specifically ''[[rete testis]]''
| Site      = [[paratesticular region]]/[[testis]] - see ''[[rete testis]]''
| Assdx      =
| Assdx      =
| Syndromes  =
| Syndromes  =
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| Tx        =  
| Tx        =  
}}
}}
'''Adenocarcinoma of the rete testis''', also '''rete testis adenocarcinoma''', is a very rare [[malignant]] tumour of the [[testis]].
'''Adenocarcinoma of the rete testis''', also '''rete testis adenocarcinoma''', is a very rare [[malignant]] tumour of the [[paratesticular region]]/[[testis]].


==General==
==General==
*Extremely rare<ref name=pmid6465420>{{Cite journal  | last1 = Nochomovitz | first1 = LE. | last2 = Orenstein | first2 = JM. | title = Adenocarcinoma of the rete testis. Case report, ultrastructural observations, and clinicopathologic correlates. | journal = Am J Surg Pathol | volume = 8 | issue = 8 | pages = 625-34 | month = Aug | year = 1984 | doi =  | PMID = 6465420 }}</ref> - a few dozen cases in the world literature.
*Extremely rare<ref name=pmid6465420>{{Cite journal  | last1 = Nochomovitz | first1 = LE. | last2 = Orenstein | first2 = JM. | title = Adenocarcinoma of the rete testis. Case report, ultrastructural observations, and clinicopathologic correlates. | journal = Am J Surg Pathol | volume = 8 | issue = 8 | pages = 625-34 | month = Aug | year = 1984 | doi =  | PMID = 6465420 }}</ref> - a few dozen cases in the world literature.
*Typically older men (>60 years old), but reported in younger men with undescended testis.<ref name=pmid6465420/>
*Typically older men (>60 years old), but reported in younger men with undescended testis.<ref name=pmid6465420/>
*Possible association of diethylstilbestrol.<ref name=pmid3799821>{{Cite journal  | last1 = Newbold | first1 = RR. | last2 = Bullock | first2 = BC. | last3 = McLachlan | first3 = JA. | title = Adenocarcinoma of the rete testis. Diethylstilbestrol-induced lesions of the mouse rete testis. | journal = Am J Pathol | volume = 125 | issue = 3 | pages = 625-8 | month = Dec | year = 1986 | doi =  | PMID = 3799821 | PMC = 1888460 | URL = http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1888460/?page=1}}</ref>
*Possible association with diethylstilbestrol - based on non-human data.<ref name=pmid3799821>{{Cite journal  | last1 = Newbold | first1 = RR. | last2 = Bullock | first2 = BC. | last3 = McLachlan | first3 = JA. | title = Adenocarcinoma of the rete testis. Diethylstilbestrol-induced lesions of the mouse rete testis. | journal = Am J Pathol | volume = 125 | issue = 3 | pages = 625-8 | month = Dec | year = 1986 | doi =  | PMID = 3799821 | PMC = 1888460 | URL = http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1888460/?page=1}}</ref>
*Prognosis poor<ref name=pmid17853037>{{Cite journal  | last1 = Sogni | first1 = F. | last2 = Monga | first2 = G. | last3 = Terrone | first3 = C. | last4 = Gontero | first4 = P. | title = Primary adenocarcinoma of the rete testis: diagnostic problems and therapeutic dilemmas. | journal = Scand J Urol Nephrol | volume = 42 | issue = 1 | pages = 83-5 | month =  | year = 2008 | doi = 10.1080/00365590701517608 | PMID = 17853037 }}</ref> - 3-year and 5-year disease-free survival approximately 50% and 15% respectively.<ref name=pmid7571213>{{Cite journal  | last1 = Sánchez-Chapado | first1 = M. | last2 = Angulo | first2 = JC. | last3 = Haas | first3 = GP. | title = Adenocarcinoma of the rete testis. | journal = Urology | volume = 46 | issue = 4 | pages = 468-75 | month = Oct | year = 1995 | doi = 10.1016/S0090-4295(99)80257-X | PMID = 7571213 }}</ref>
*Prognosis poor<ref name=pmid17853037>{{Cite journal  | last1 = Sogni | first1 = F. | last2 = Monga | first2 = G. | last3 = Terrone | first3 = C. | last4 = Gontero | first4 = P. | title = Primary adenocarcinoma of the rete testis: diagnostic problems and therapeutic dilemmas. | journal = Scand J Urol Nephrol | volume = 42 | issue = 1 | pages = 83-5 | month =  | year = 2008 | doi = 10.1080/00365590701517608 | PMID = 17853037 }}</ref> - 3-year and 5-year disease-free survival approximately 50% and 15% respectively.<ref name=pmid7571213>{{Cite journal  | last1 = Sánchez-Chapado | first1 = M. | last2 = Angulo | first2 = JC. | last3 = Haas | first3 = GP. | title = Adenocarcinoma of the rete testis. | journal = Urology | volume = 46 | issue = 4 | pages = 468-75 | month = Oct | year = 1995 | doi = 10.1016/S0090-4295(99)80257-X | PMID = 7571213 }}</ref>


Clinical:
Clinical:
*[[Germ cell tumour]] serum markers (LDH, AFP, beta-hCG) typically normal.  
*[[Germ cell tumour]] serum markers (LDH, AFP, beta-hCG) typically normal.


==Gross==
==Gross==
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==IHC==
==IHC==
Features:<ref name=pmid23800084/>
Features:<ref name=pmid23800084/>
*CK7 +ve.
*[[CK7]] +ve.
*EMA +ve.
*[[EMA]] +ve.


Others:<ref name=pmid23800084/>
Others:<ref name=pmid23800084/>
*AFP -ve.
*[[AFP]] -ve.
*CD30 -ve.
*CD30 -ve.
*PLAP -ve.
*PLAP -ve.
*CK5/6 -ve.
*CK5/6 -ve.
*Calretinin -ve.
*Calretinin -ve.
*PSA -ve.
*[[PSA]] -ve.


==See also==
==See also==

Latest revision as of 21:56, 29 September 2015

Adenocarcinoma of the rete testis
Diagnosis in short

Adenocarcinoma of the rete testis. H&E stain.
LM atypical columnar or cuboidal cells, often with cigar-shaped nuclei; classically tubular or papillary architecture; transistion to normal appearing rete testis
LM DDx adenomatous hyperplasia of the rete testis, Sertoli cell tumour, malignant mesothelioma, metastasis
IHC EMA +ve, CK7 +ve, PSA -ve, calretinin -ve, CK5/6 -ve, PLAP -ve, AFP -ve, CD30 -ve
Gross hilar mass
Grossing notes orchiectomy grossing
Site paratesticular region/testis - see rete testis
Prevalence extremely rare
Blood work markers for GCT typically normal
Prognosis poor
Clin. DDx other testicular mass

Adenocarcinoma of the rete testis, also rete testis adenocarcinoma, is a very rare malignant tumour of the paratesticular region/testis.

General

  • Extremely rare[1] - a few dozen cases in the world literature.
  • Typically older men (>60 years old), but reported in younger men with undescended testis.[1]
  • Possible association with diethylstilbestrol - based on non-human data.[2]
  • Prognosis poor[3] - 3-year and 5-year disease-free survival approximately 50% and 15% respectively.[4]

Clinical:

Gross

  • Lesion of the testicular hilum.[1]

Microscopic

Features:

  • Adenocarcinoma:
    • Atypical columnar or cuboidal cells, often with cigar-shaped nuclei.
    • Classically tubular or papillary architecture.[2]
  • Transistion to normal appearing rete testis.[1]

DDx:

Images

  • ART - low mag. (WC)

  • ART - intermed. mag. (WC)

  • ART - high mag. (WC)

  • ART - high mag. (WC)

  • ART - very high mag. (WC)

www:

IHC

Features:[5]

Others:[5]

  • AFP -ve.
  • CD30 -ve.
  • PLAP -ve.
  • CK5/6 -ve.
  • Calretinin -ve.
  • PSA -ve.

See also

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 Nochomovitz, LE.; Orenstein, JM. (Aug 1984). "Adenocarcinoma of the rete testis. Case report, ultrastructural observations, and clinicopathologic correlates.". Am J Surg Pathol 8 (8): 625-34. PMID 6465420.
  2. ↑ 2.0 2.1 Newbold, RR.; Bullock, BC.; McLachlan, JA. (Dec 1986). "Adenocarcinoma of the rete testis. Diethylstilbestrol-induced lesions of the mouse rete testis.". Am J Pathol 125 (3): 625-8. PMC 1888460. PMID 3799821. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1888460/.
  3. ↑ Sogni, F.; Monga, G.; Terrone, C.; Gontero, P. (2008). "Primary adenocarcinoma of the rete testis: diagnostic problems and therapeutic dilemmas.". Scand J Urol Nephrol 42 (1): 83-5. doi:10.1080/00365590701517608. PMID 17853037.
  4. ↑ Sánchez-Chapado, M.; Angulo, JC.; Haas, GP. (Oct 1995). "Adenocarcinoma of the rete testis.". Urology 46 (4): 468-75. doi:10.1016/S0090-4295(99)80257-X. PMID 7571213.
  5. ↑ 5.0 5.1 5.2 Lin, XY.; Yu, JH.; Xu, HT.; Wang, L.; Fan, CF.; Liu, Y.; Wang, EH. (2013). "A case of adenocarcinoma of the rete testis accompanied by focal adenomatous hyperplasia.". Diagn Pathol 8: 105. doi:10.1186/1746-1596-8-105. PMID 23800084.
  6. ↑ Ulbright, TM.; Young, RH. (Nov 2008). "Metastatic carcinoma to the testis: a clinicopathologic analysis of 26 nonincidental cases with emphasis on deceptive features.". Am J Surg Pathol 32 (11): 1683-93. doi:10.1097/PAS.0b013e3181788516. PMID 18769334.
  7. ↑ Yang, Z.; Sheng, C.; Cao, L.; Wang, D.. "Adenocarcinoma of rete testis with widespread liver metastasis.". Can Urol Assoc J 7 (9-10): E654-6. doi:10.5489/cuaj.470. PMID 24409217.
  8. ↑ Tian, Y.; Yao, W.; Yang, L.; Wang, J.; Wazir, R.; Wang, K. (Feb 2014). "Primary adenocarcinoma of the rete testis: A case report and review of the literature.". Oncol Lett 7 (2): 455-457. doi:10.3892/ol.2013.1708. PMID 24396468.
  9. ↑ Wu, CA.; Chen, YH.; Man, KM.; Shen, JL.; Chen, WC. (2011). "Papillary adenocarcinoma of rete testis mimics inflammatory lump: a case report.". Case Rep Urol 2011: 857812. doi:10.1155/2011/857812. PMID 22606627.
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