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Dermatology Practical & Conceptual

Incidental Merkel cell carcinoma in a cutaneous horn: a case report

…ghlights the significant association between MCC and squamous cell carcinoma and the uncommon clinical presentation of this combined tumor in the form of a cutaneous horn. Introduction Merkel cells, which likely derive from the neural crest, are basa…

Differential Diagnosis in Dermatopathology

"Pseudolymphoma," B-cell type vs. Malignant lymphoma, B-cell type

Extramammary Paget’s disease is an apocrine carcinoma that begins within the epidermis and presents itself clinically as a patch or a subtle plaque that extends centrifugally for many years before becoming a readily discernible thick plaque, a…

Dermatology Practical & Conceptual

Balloon cell melanoma in primary care practice: a case report

…atopathologically the differential diagnosis includes balloon cell change in benign nevi, clear cell sarcoma, clear cell metastatic renal cell carcinoma, basal cell carcinoma, squamous cell carcinoma, malignant clear cell acrospiroma, sebaceous carci…

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