Search Results for: squamous-cell carcinoma

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

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

…d female who presented with a “cutaneous horn” on the face. On excision, histologic examination revealed a combined squamous cell carcinoma in situ with underlying MCC. Merkel cell polyomavirus immunohistochemistry was negative in this lesion. This…

Differential Diagnosis in Dermatopathology

Trichoepithelioma vs. Infundibulocystic basal-cell carcinoma

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,…

Clinical Case Studies

Rhinophyma with Basal Cell Carcinoma

…a.1-2 HISTOLOGY A cutaneous shave biopsy of the right nasal dorsum lesion was performed and was consistent with occult basal cell carcinoma in a setting of rhinophyma. Nodular aggregates of basaloid cells in the dermis with peripheral palisading and…

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,…

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