Search Results for: adenocarcinoma

Dermatology Practical & Conceptual

Malignant cylindroma in a patient with Brooke-Spiegler syndrome

…ost frequently, neoplasms resembled salivary gland basal cell adenocarcinomas and had either low grade or high-grade malignant differentiation. Infiltrative and sarcomatoid poorly differentiated pattern was seen in lesser amount of cases. No immunohi…

Differential Diagnosis in Dermatopathology

Discussions

…stic, even though the former is a hamartoma and the latter an adenocarcinoma. Both may have several findings histopathologic in common: presence of infundibular cyst-like structures scant stroma, epithelial components connected to pre-existing normal…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Eccrine Neoplasms?

…arcinoma) Polymorphous sweat gland carcinoma Digitalpapillary adenocarcinoma Malignant cylindroma Malignant spiradenoma (spiradenocarcinoma) Porocarcinoma Squamoid eccrine ductal carcinoma Miscellaneous sweat gland carcinomas David Weedon. Skin Patho…

Differential Diagnosis in Dermatopathology

Trichoadenoma vs. Microcystic adnexal carcinoma

Pigmented plaques formed by confluence of smooth-surfaced soft papules, some of which may become polypoid, traversed by accentuations of skin folds. This disease has a predilection for intertriginous regions. The condition may develop consequent to…

Differential Diagnosis in Dermatopathology

Nevus verrucosus vs. Acanthosis nigricans

Pigmented plaques formed by confluence of smooth-surfaced soft papules, some of which may become polypoid, traversed by accentuations of skin folds. This disease has a predilection for intertriginous regions. The condition may develop consequent to…

Differential Diagnosis in Dermatopathology

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

Pigmented plaques formed by confluence of smooth-surfaced soft papules, some of which may become polypoid, traversed by accentuations of skin folds. This disease has a predilection for intertriginous regions. The condition may develop consequent to…

Differential Diagnosis in Dermatopathology

Discussions

…structures of syringomas, however, unlike those in metastatic adenocarcinoma, often show comma-like extensions that have been compared to the shape of a tadpole. Cornifying cysts and calcification are common features of syringoma, but not, as a rule,…