Difference between revisions of "Vascular tumours"
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*Childhood tumour.<ref name=pmid15105642>{{Cite journal | last1 = Lyons | first1 = LL. | last2 = North | first2 = PE. | last3 = Mac-Moune Lai | first3 = F. | last4 = Stoler | first4 = MH. | last5 = Folpe | first5 = AL. | last6 = Weiss | first6 = SW. | title = Kaposiform hemangioendothelioma: a study of 33 cases emphasizing its pathologic, immunophenotypic, and biologic uniqueness from juvenile hemangioma. | journal = Am J Surg Pathol | volume = 28 | issue = 5 | pages = 559-68 | month = May | year = 2004 | doi = | PMID = 15105642 }}</ref> | *Childhood tumour.<ref name=pmid15105642>{{Cite journal | last1 = Lyons | first1 = LL. | last2 = North | first2 = PE. | last3 = Mac-Moune Lai | first3 = F. | last4 = Stoler | first4 = MH. | last5 = Folpe | first5 = AL. | last6 = Weiss | first6 = SW. | title = Kaposiform hemangioendothelioma: a study of 33 cases emphasizing its pathologic, immunophenotypic, and biologic uniqueness from juvenile hemangioma. | journal = Am J Surg Pathol | volume = 28 | issue = 5 | pages = 559-68 | month = May | year = 2004 | doi = | PMID = 15105642 }}</ref> | ||
*Approximately half have ''Kasabach–Merritt phenomenon'' = vascular tumour --> coagulopathy. | *Approximately half have ''Kasabach–Merritt phenomenon'' = vascular tumour --> coagulopathy. | ||
===Microscopic=== | ===Microscopic=== | ||
Features: | Features:<ref name=pmid1706068/> | ||
* | *Spindle cells lesions in sheets or nodules. | ||
*+/-Round tumour nodules - "cannon ball" appearance. | |||
DDx: | |||
*[[Kaposi sarcoma]].<ref name=pmid1706068>{{Cite journal | last1 = Miller | first1 = K. | title = Sister-chromatid exchange in human B- and T-lymphocytes exposed to bleomycin, cyclophosphamide, and ethyl methanesulfonate. | journal = Mutat Res | volume = 247 | issue = 1 | pages = 175-82 | month = Mar | year = 1991 | doi = | PMID = 1706068 | url = http://www.nature.com/modpathol/journal/v14/n11/full/3880441a.html }}</ref> | |||
===IHC=== | ===IHC=== | ||
Features:<ref name=pmid1706068/> | |||
*Vimentin +ve. | |||
*C31 +ve. | |||
*CD34 +ve. | |||
*UEA-1 lectin +ve. | |||
==Epithelioid hemangioendothelioma== | ==Epithelioid hemangioendothelioma== | ||
Revision as of 17:53, 15 November 2011
This article covers soft tissue vascular tumours. Vascular malformations are covered in the vascular malformations article.
Normal histology
Normal blood vessel histology is dealt with in the vascular disease article.
Hemangioma
General
- May be found in the liver.
- Classically subcapsular.
- May rupture and be life-threatening.[1]
- Classically subcapsular.
Childhood
Common childhood hemangiomas:[2]
- Tufted - small clusters of blood vessels.
- Microvenular hemangioma.
- Glomeruloid hemangioma - associated with POEMS syndrome, Castleman disease.[3][4]
- Epithelioid hemangioma.
- Targetoid hemosideric hemangioma.
Soft tissue
Several types are seen in soft tissue:[5]
- Capillary.
- Cavernous.
- Arteriovenous.
- Venous.
- Intramuscular.
- Synovial.
Microscopic
Features:
- Abundance of benign small blood vessels. (???)
Images:
Kaposi sarcoma
General
- Not really a sarcoma.
- Caused by HHV-8.
- Associated with immunodeficiency, e.g. HIV/AIDS.
Stages
It is seen in different stages:[6]
- Patch stage.
- Plaque stage.
- Nodular stage.
- Lymphangioma-like. (???)
Microscopic
Features:[7]- key feature.
- +/-Nuclear atypia.
- Hyaline globules (intracytoplasmic)[8] - pale pink globs (that are paler than RBCs) - important feature.
- +/-Hemosiderin deposits.
DDx:
- Angiosarcoma (have many mitoses, nuclear atypia).
- Masson's hemangioma (Intravascular papillary endothelial hyperplasia).
Notes:
- Hyaline globules have a DDx (hepatocellular carcinoma, lung adenocarcinoma, chondrosarcomas + others).[8]
- Promontory sign - small vessel protruding into an abnormal vascular space.[9]
- Not pathognomonic for KS.[10]
- Image: Promontory sign (diagnosticpathology.org).
Images:
IHC
- CD31 +ve.
- CD34 +ve.
- HHV-8 +ve.
Masson hemangioma
General
- Benign non-neoplastic lesion - a vessel that has thrombosed and recanalized.
- AKA intravascular papillary endothelial hyperplasia.[11]
- Histomorphologically may be confused with low-grade angiosarcoma or other soft tissue sarcomas.[11]
Microscopic
Features:
- Well-circumscribed - key (low power) feature.
- Abundant small vascular channels with benign endothelium.
Notes:
- Looks like Kaposi sarcoma at high power.
Angiosarcoma
General
- Malignant tumour - with a horrible prognosis.[12]
- Classically on the scalp or head & neck.
Epidemiology:
- May arise secondary to therapeutic radiation or chronic lymphoedema related to breast carcinoma.
- Liver angiosarcomas are assoc. with vinyl chloride exposure.[13]
Microscopic
Features:
- Very many small capillaries of irregular shape lined with:
- Pleomorphic nuclei.
- May have hobnail morphology.
- Pleomorphic nuclei.
- Mitoses.
- Cytoplasmic vacuoles.
- Cells trying to form lumina - embryologic.
Notes:
- Epithelioid variant (with abundant cytoplasm & sheeting architecture) may resemble melanoma or hepatocellular carcinoma.
Images:
- Epithelioid angiosarcoma - very low mag. (WC).
- Epithelioid angiosarcoma - intermed mag. (WC).
- Epithelioid angiosarcoma - very high mag. (WC).
IHC
- CD34 +ve.
- D2-40 +ve. (???)
- CD31 +ve.
- FLI-1 +ve.[14]
Kaposiform hemangioendothelioma
General
- Locally aggressive.[15]
- Childhood tumour.[16]
- Approximately half have Kasabach–Merritt phenomenon = vascular tumour --> coagulopathy.
Microscopic
Features:[17]
- Spindle cells lesions in sheets or nodules.
- +/-Round tumour nodules - "cannon ball" appearance.
DDx:
IHC
Features:[17]
- Vimentin +ve.
- C31 +ve.
- CD34 +ve.
- UEA-1 lectin +ve.
Epithelioid hemangioendothelioma
- Should not be confused with epithelioid hemangioma.
General
Microscopic
Features:[18]
- Large epithelioid perivascular cells with:
- Abundant pale eosinophilic cytoplasm.
- Cytoplasmic vacuolation (some cells).
- May form lumen and have RBC within.
- Cytoplasmic vacuolation (some cells).
- Vesicular nucleus with prominent nucleolus in some cells.
- Abundant pale eosinophilic cytoplasm.
- Tuft-like projections into capillaries.
Image:
IHC
Features:[18]
- CD31 +ve.
- CD34 +ve.
- Factor VIII +ve.
See also
References
- ↑ Vokaer, B.; Kothonidis, K.; Delatte, P.; De Cooman, S.; Pector, JC.; Liberale, G.. "Should ruptured liver haemangioma be treated by surgery or by conservative means? A case report.". Acta Chir Belg 108 (6): 761-4. PMID 19241936.
- ↑ Prieto VG, Shea CR (July 1999). "Selected cutaneous vascular neoplasms. A review". Dermatol Clin 17 (3): 507–20, viii. PMID 10410855.
- ↑ Uthup S, Balachandran K, Ammal VA, et al. (August 2006). "Renal involvement in multicentric Castleman disease with glomeruloid hemangioma of skin and plasmacytoma". Am. J. Kidney Dis. 48 (2): e17–24. doi:10.1053/j.ajkd.2006.04.089. PMID 16860182.
- ↑ Humphrey, Peter A; Dehner, Louis P; Pfeifer, John D (2008). The Washington Manual of Surgical Pathology (1st ed.). Lippincott Williams & Wilkins. pp. 618. ISBN 978-0781765275.
- ↑ Humphrey, Peter A; Dehner, Louis P; Pfeifer, John D (2008). The Washington Manual of Surgical Pathology (1st ed.). Lippincott Williams & Wilkins. pp. 602. ISBN 978-0781765275.
- ↑ URL: http://www.histopathology-india.net/KS.htm. Accessed on: 31 January 2010.
- ↑ Klatt, Edward C. (2006). Robbins and Cotran Atlas of Pathology (1st ed.). Saunders. pp. 23. ISBN 978-1416002741.
- ↑ 8.0 8.1 del Rosario AD, Bui HX, Singh J, Ginsburg R, Ross JS (December 1994). "Intracytoplasmic eosinophilic hyaline globules in cartilaginous neoplasms: a surgical, pathological, ultrastructural, and electron probe x-ray microanalytic study". Hum. Pathol. 25 (12): 1283–9. PMID 7528163.
- ↑ Lazova R, McNiff JM, Glusac EJ, Godic A (April 2009). "Promontory sign--present in patch and plaque stage of angiosarcoma!". Am J Dermatopathol 31 (2): 132–6. doi:10.1097/DAD.0b013e3181951045. PMID 19318797.
- ↑ Fernandez-Flores A, Rodriguez R (June 2010). "Promontory Sign in a Reactive Benign Vascular Proliferation". Am J Dermatopathol. doi:10.1097/DAD.0b013e3181cf0ae5. PMID 20577080.
- ↑ 11.0 11.1 Korkolis DP, Papaevangelou M, Koulaxouzidis G, Zirganos N, Psichogiou H, Vassilopoulos PP (2005). "Intravascular papillary endothelial hyperplasia (Masson's hemangioma) presenting as a soft-tissue sarcoma". Anticancer Res. 25 (2B): 1409–12. PMID 15865098.
- ↑ Young RJ, Brown NJ, Reed MW, Hughes D, Woll PJ (May 2010). "Angiosarcoma". Lancet Oncol. doi:10.1016/S1470-2045(10)70023-1. PMID 20537949.
- ↑ Mitchell, Richard; Kumar, Vinay; Fausto, Nelson; Abbas, Abul K.; Aster, Jon (2011). Pocket Companion to Robbins & Cotran Pathologic Basis of Disease (8th ed.). Elsevier Saunders. pp. 212. ISBN 978-1416054542.
- ↑ Rossi, S.; Orvieto, E.; Furlanetto, A.; Laurino, L.; Ninfo, V.; Dei Tos, AP. (May 2004). "Utility of the immunohistochemical detection of FLI-1 expression in round cell and vascular neoplasm using a monoclonal antibody.". Mod Pathol 17 (5): 547-52. doi:10.1038/modpathol.3800065. PMID 15001993.
- ↑ 15.0 15.1 Humphrey, Peter A; Dehner, Louis P; Pfeifer, John D (2008). The Washington Manual of Surgical Pathology (1st ed.). Lippincott Williams & Wilkins. pp. 603. ISBN 978-0781765275.
- ↑ Lyons, LL.; North, PE.; Mac-Moune Lai, F.; Stoler, MH.; Folpe, AL.; Weiss, SW. (May 2004). "Kaposiform hemangioendothelioma: a study of 33 cases emphasizing its pathologic, immunophenotypic, and biologic uniqueness from juvenile hemangioma.". Am J Surg Pathol 28 (5): 559-68. PMID 15105642.
- ↑ 17.0 17.1 17.2 Miller, K. (Mar 1991). "Sister-chromatid exchange in human B- and T-lymphocytes exposed to bleomycin, cyclophosphamide, and ethyl methanesulfonate.". Mutat Res 247 (1): 175-82. PMID 1706068. http://www.nature.com/modpathol/journal/v14/n11/full/3880441a.html.
- ↑ 18.0 18.1 18.2 Gupta, R.; Mathur, SR.; Gupta, SD.; Durgapal, P.; Iyer, VK.; Das, CJ.; Shalimar, SK.; Acharya, . (2010). "Hepatic epithelioid hemangioendothelioma: A diagnostic pitfall in aspiration cytology.". Cytojournal 6: 25. doi:10.4103/1742-6413.58951. PMID 20165548.