Aneurysmal fibrous histiocytoma

Case 1082  (R. Carr)  (atypical variety) M thigh lump (history of penile carcinoma) 

Large dermal mass containing highly atypical cells (not unlike AFX), monster cells (multiple nuclei and bizarre mitoses), vascular dilation and obvious haemosiderin. 

Ref: Kaddu, S.  Am J Surg Pathol 2002; 26(1): 35-46 – a small proportion of these tumours metastasise.  Are they a form of sarcoma? 

Case 2485  14.1.20  (U. Sundram)  35 M thigh 

Associated with unusual hidrocystoma-like cyst    ? collision tumour 

Ref: Am J Dermatopathol 2007 29: 309-10 

Case 4215  17.2.23 (IH Chaudhury)  M 44 forearm changing “blue”  naevus 

Prefers term aneurysmal fibro-histiocytoma than aneurysmal dermatofibroma. 

Case 4610  (I H Chaudhry)  M 16 back ?angioma