Search Results for: neoplasms

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

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 Are “Eccrin…

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

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

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…

Differential Diagnosis in Dermatopathology

Discussions

In general, neoplasms metastatic to the skin present little difficulty in differential diagnosis from neoplasms primary in the skin. Carcinoma of the breast is an exception. If there are but a few neoplastic cells and numerous inflammatory cells sca…

Differential Diagnosis in Dermatopathology

Apocrine mixed tumor vs. Eccrine mixed tumor

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…