Case Number : Case 396 Posted By: Guest

Phillip McKee - Overseas Consultations (Cave Creek, Arizona, USA) Wrote:

This is a difficult case and demonstrates how many "different" vascular tumors there currently are. It is a florrid microvenular hemangioma with most of the vessels cut at right angles. The bottom right figure shows the vessels infiltrating between somewhat hyalinized dermal collagen. Involvement of arrector pili muscles (not shown) is a typical feature. Epithelioid hemangioendothelioma does not show much in the way of full vascular differentiation. One tends to see clusters of cells some with intracytoplasmic vacuoles occasionally containing erythrocytes (if you are lucky). In addition there is an accompanying myxoid and hyalinized stroma.

Submitted on 15/12/2011 22:40
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Marcela M. Escanamé - Medical Univesity of Graz (Austria) Wrote:

Epithelioid Hemangioendothelioma

Submitted on 15/12/2011 22:25
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Sasi Attili - (UK) Wrote:

I would favour an EAN rather than an Epithelioid hemangioendothelioma

Submitted on 15/12/2011 22:00
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Mona Abdel Halim - Dermatology Dept. Cairo Univ. (Egypt) Wrote:

I thought of cutaneous epithelioid angiomatous nodule due to the presence of focal vascular channels, and the back ground of fibrosis. I think in epithelioid fibrous histiocytoma, cells appear more spitzoid like and there is no fibrosis, however , it is a good DDx. Epithelioid hemangioendothelioma usually shows no well formed vascular channels and is more diffuse and infiltrative, the first image gives me a rather circumscribed architecture,,,

Submitted on 15/12/2011 18:38
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Eman El-Nabarawy - Cairo University (Egypt) Wrote:

Epithelioid fibrous histiocytoma.

Submitted on 15/12/2011 18:11
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W Chen - () Wrote:

Can this be an epithelioid cell histiocytoma or a histiocytic variant of DF?

Submitted on 15/12/2011 17:33
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Francisco Vilchez - Department of Dermatology. Virgen de la Victoria Clinical Universitary Hospital. (Málaga (Spain)) Wrote:

Ufff, this time I´m not late...Epitheloid hemangioendothelioma

Submitted on 15/12/2011 17:14
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Marcela Saeb Lima - INCMNSZ (Mexico City) Wrote:

epithelioid hemangioendothelioma

Submitted on 15/12/2011 16:51
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M A Rahman - North Cumbria University Hopsitals NHS Trust (carlisle) Wrote:

epithelioid haemangioendothelioma

Submitted on 15/12/2011 15:34
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