A suprising finding on a biopsy to rule out basal cell carcinoma.
Wed, 07/14/2010 - 10:46 — Artur Zembowicz M.D. Ph.D.
Contributor(s):
A 70 year old white female with a history of multiple non-melanoma skin cancers presented with an erythematous 6 x 4 papule. Clinical considerations included basal cell carcinoma, persistent insect bite reaction and a lymphoid infiltrate.
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Diagnosis:
Solitary mastocytoma
The sections show suerficial dermal proliferation of mast cells (confirmed by Giemsa stain and c-kit expression). In the context of a single lesion, the features are best interpreted as a solitary mastocyytoma.