Difference between revisions of "Soft tissue lesions"
Jump to navigation
Jump to search
m (→Desmoplastic fibroblastoma: repl. pmid nums) |
(→Microscopic: +Masson hemangioma) |
||
| Line 240: | Line 240: | ||
DDx: | DDx: | ||
*Angiosarcoma (have many mitoses). | *Angiosarcoma (have many mitoses). | ||
*Masson's hemangioma (Intravascular papillary endothelial hyperplasia). | |||
Notes: | Notes: | ||
| Line 247: | Line 248: | ||
*[http://commons.wikimedia.org/wiki/File:Kaposi_sarcoma_high_mag.jpg Kaposi sacoma - high mag. (WC)]. | *[http://commons.wikimedia.org/wiki/File:Kaposi_sarcoma_high_mag.jpg Kaposi sacoma - high mag. (WC)]. | ||
*[http://commons.wikimedia.org/wiki/File:Kaposi_sarcoma_low_intermed_mag.jpg Kaposi sarcoma - intermed. mag. (WC)]. | *[http://commons.wikimedia.org/wiki/File:Kaposi_sarcoma_low_intermed_mag.jpg Kaposi sarcoma - intermed. mag. (WC)]. | ||
==Masson hemangioma== | |||
===General=== | |||
*Benign non-neoplastic lesion - a vessel that has thrombosed and recanalized. | |||
*[[AKA]] ''intravascular papillary endothelial hyperplasia''.<ref name=pmid15865098>{{cite journal |author=Korkolis DP, Papaevangelou M, Koulaxouzidis G, Zirganos N, Psichogiou H, Vassilopoulos PP |title=Intravascular papillary endothelial hyperplasia (Masson's hemangioma) presenting as a soft-tissue sarcoma |journal=Anticancer Res. |volume=25 |issue=2B |pages=1409–12 |year=2005 |pmid=15865098 |doi= |url=}}</ref> | |||
*Histomorphologically may be confused with low-grade angiosarcoma or other soft tissue sarcomas.<ref name=pmid15865098/> | |||
===Microscopic=== | |||
Features: | |||
*Well-circumscribed - '''key (low power) feature'''. | |||
*Abundant small vascular channels with benign endothelium. | |||
Notes: | |||
*Looks like Kaposi sarcoma at high power. | |||
===IHC=== | ===IHC=== | ||