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*Lymphocyte versus mast cell: | *Lymphocyte versus mast cell: | ||
**Lymphocytes = round; mast cells = ovoid. | **Lymphocytes = round; mast cells = ovoid. | ||
DDx: | DDx: | ||
*[[Intradermal nevus]]. | *[[Intradermal nevus]]. | ||
*Aggressive systemic mastocytosis - may have marked atypia and mimic [[pleomorphic undifferentiated sarcoma]], [[Langerhans cell histiocytosis]] and other [[pleomorphic neoplasms]]. | |||
===Images=== | ===Images=== |
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