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…

Differential Diagnosis in Dermatopathology

Granular-cell tumor vs. Xanthoma

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

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…

Differential Diagnosis in Dermatopathology

Apocrine (clear-cell) hidradenoma vs. Eccrine (poroid) hidradenoma

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

Differential Diagnosis

…s and associated papilla present often 11. No hamartomas or neoplasms with adnexal differentiation concurrent in the section of tissue 11. Benign neoplasms with adnexal differentiation (e.g., trichoblastoma) and much less commonly malignant neoplas…

Dermatology Practical & Conceptual

Papillary adenocarcinoma in situ of the skin: report of four cases

…ieved to occupy the gray zone separating benign and malignant neoplasms of the sweat glands. Since none was found to have metastasized, this lesion is provisionally considered benign. The diagnostic term of papillary eccrine adenoma is suggested.” Th…