Resolving Quandaries in Dermatology, Pathology & Dermatopathology

-oid?

…d sarcoma” verges on oxymoron. Carcinomas are malignant neoplasms of epithelial cells; sarcomas are malignant neoplasms of nonepithelial cells. The sarcoma that Enzinger designated epithelioid was thought by him to resemble certain inflammatory…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Precursor Lesions of Melanoma?

…ions have in common? Apart from the fact that all of them are neoplasms composed of melanocytes, they have nothing in common! Lentigo maligna is a synonym for a flat lesion of melanoma (melanoma in situ) situated on skin that has been damaged badly b…

Dermatology Practical & Conceptual

When all you have is a dermatoscope—start looking at the nails

…, especially antibiotics and cytostatics. Benign or malignant neoplasms that may also affect the nail unit include glomus tumor, Bowen’s disease, squamous cell carcinoma, and rare collision tumors. This review aims to assist clinicians in correctly e…

Differential Diagnosis in Dermatopathology

Discussions

…dermis, and vertical orientation sometimes. Furthermore, both neoplasms may involve both the dermis and sometimes the subcutaneous fat, too, form tubules, contain mucin in the stroma, possess more than one type of epithelial cell, i.e., both pale cel…

Differential Diagnosis in Dermatopathology

Metastatic carcinoma from a breast vs. Morpheiform basal-cell carcinoma

A hamartoma of epidermis, epithelial structures of adnexa, and presumably dermal elements, typified, when fully formed, by a papillated or verrucous yellowish plaque situated usually on the scalp. The condition may present itself as a solitary lesio…

Differential Diagnosis in Dermatopathology

Discussions

…tadenoma papilliferum is but one of many benign and malignant neoplasms that may arise within nevus sebaceus, a hamartoma marked by alterations of the dermis, the epidermis, and the epithelial structures of adnexa, as well at times of the subcutaneou…

Differential Diagnosis in Dermatopathology

Lecture Series

…Erythematosus Mycosis Fungoides Exploding Myths: Melanocytic Neoplasms Part 1 | Part 2 | Part 3 | Part 4 | Part 5 | Part 6 | Part 7 Basal-Cell Carcinoma is Trichoblastic Carcinoma Part 1 | Part 2 Muir-Torre Syndrome Part 1 | Part 2 A…

Differential Diagnosis in Dermatopathology

Discussions

The neoplasms under discussion here are termed “mixed tumors” because they consist of a combination of epithelial elements with tubular differentiation on one hand and non-epithelial elements with mucinous and chondroid aspects, but they…