Case Number : Case 387 Posted By: Guest

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

Eccrine hidradenoma is correct. The lesion had been completely excised at the time of removal. I take on board Richard's (and Eduardo Calonje's) comments but this case does not cause me concern. I deliberately showed the image with 2 mitoses. When you look hard enough at any benign tumor you will invariably find mitotic figures. After all, the tumor has to grow!

Submitted on 02/12/2011 20:17
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Richard Carr - Warwick (UK) Wrote:

Hidradenoma. Any mitotically active (benign) lesion can recur if incompletely removed. Some cases of bog standard hidradenoma even have gone to local lymph nodes and these may well represent "benign" metastases (presumably cells pushed in to lymphactics during incomplete/partial removal). This phenomenon is well recognised for curetted pleomorphic adenomas in the oral minor salivary glands. Eduardo Calonje has presented a small series of ?"benign" metastasing hidradenomas.

Submitted on 02/12/2011 18:22
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A Bansal - BCU HB (North Wales) Wrote:

Hidradenoma, ??atypical.

Submitted on 02/12/2011 17:19
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Peter Karolyi - () Wrote:

Agree, Nodular hidradenoma with clear cells.

Submitted on 02/12/2011 17:09
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Rodrigo Restrepo - UPB/CES (Mdlln/COL) Wrote:

Nodular hidradenoma

Submitted on 02/12/2011 16:25
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Mona Abdel Halim - Dermatology Dept. Cairo Univ. (Egypt) Wrote:

I think this is eccrine hidradenoma, the presence of two mitoses may correlate with increased incidence of recurrence and a possible malignant potential (atypical hidradenoma)

Submitted on 02/12/2011 15:43