Case Number : Case 312 Posted By: Guest

Iskander H. Chaudhry - Central Manchester Trust (Manchester, U.K.) Wrote:

The diagnosis is Aneurysmal fibrous histiocytoma. I take your point about pigmented DFSP which is naturally a differential but the pigment looks more golden and clumped in image 3 reflected that it is haemosidrin.

Submitted on 22/08/2011 05:20
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eva - () Wrote:

dermatofibroma-hemosiderotic BFH

Submitted on 20/08/2011 03:10
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Miguel Sanz - UAH (Spain) Wrote:

Aneurysmal fibrous histiocytoma may show also focal extension to SC fat like in this case, but I have never seen in aneurysmal dermatofibromas the storiforme closed pattern with a radius of gyration so short wich is often seen in dermatofibrosarcomas. On the other hand the abundant pigment is brilliant like hemosiderin, I have not seen melanin in the images, so I bet for a rare aneurysmal fibrous histiocytoma and not for a Bednar tumour (pigmented DFSP).

Submitted on 19/08/2011 18:06
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Marwa Fawzi - Dermatology Department, Faculty of Medicine, Cairo University (Egypt) Wrote:

Hemosiderotic bening cutaneous fibrous histiocytoma vs pigmented DFSP

Submitted on 19/08/2011 11:06
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Rodrigo Restrepo - UPB/CES (Mdll-Col) Wrote:

Aneurysmal fibrous histiocytoma.

Submitted on 19/08/2011 11:03
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Maria Antonia Pastor - () Wrote:

Bednar tumour (pigmented DFSP)

Submitted on 19/08/2011 10:18
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Diana Alvarez - () Wrote:

I favour Aneurysmal fibrous histiocytoma.

Submitted on 19/08/2011 10:14
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Pablo Ortega-Espinosa - "Isidro Ayora" Hospital (Loja-Ecuador) Wrote:

Aneurysmal fibrous histiocytoma is my differential.

Submitted on 19/08/2011 09:21
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Mona Abdel Halim - Dermatology Department, Faculty of Medicine, Cairo University (Egypt) Wrote:

My first impression was pigmented DFSP but after careful inspection I realiazed that there is no pigmented dendritic cells and there are many cleft like and rounded spaces, some on the right half of the first image contain RBC's so I am in favour that this pigment is hemosiderin and I am in favor of a hemosiderotic benign fibrous histiocytoma or aneurysmal fibrous histiocytoma especially that the spaces do not have obvious endothelial cells, the spaces are not very large or cavernous but it is said that they may vary from cleft like to cavernous.. Aneurysmal fibrous histiocytoma may show also focal extension to SC fat.. Interesting case!!!!!!!!

Submitted on 19/08/2011 09:15
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Pablo Ortega-Espinosa - "Isidro Ayora" Hospital (Loja-Ecuador) Wrote:

DFSP, pigmented.

Submitted on 19/08/2011 08:47
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Marcela Saeb Lima - Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (Mexico City) Wrote:

Hemosiderotic bening cutaneous fibroushistiocytoma vs pigmented DFSP

Submitted on 19/08/2011 08:46
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Pooja and Claire - Northwick Park Hospital (London) Wrote:

Bednar tumour

Submitted on 19/08/2011 08:38
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Eman El-Nabarawy - Cairo University (Egypt) Wrote:

Bednar tumor (pigmented DFSP).

Submitted on 19/08/2011 06:29
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ANDREW DANCKWERTS - NHLS / WITS UNIVERSITY (JOHANNESBURG, JOHANNESBURG) Wrote:

BEDNAR TUMOUR (PIGMENTED DFSP). THE DIFFERENTIAL DIAGNOSIS INCLUDES ANGIOMATOID BFH. WOULD LIKE CD34 AND FXIIIa TO CONFIRM.

Submitted on 19/08/2011 06:20
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