Search Results for: dabska\'s tumor

Differential Diagnosis in Dermatopathology

Apocrine mixed tumor vs. Eccrine mixed tumor

A malignant neoplasm of melanocytes that, in the skin, begins as a macule and may become a patch or a papule. A flat lesion of melanoma tends to be asymmetrical, poorly circumscribed with a scalloped, jagged, or notched border, and variegate,…

Differential Diagnosis in Dermatopathology

Pagetoid Bowen’s disease vs. Extramammary Paget’s disease

A malignant neoplasm of melanocytes that, in the skin, begins as a macule and may become a patch or a papule. A flat lesion of melanoma tends to be asymmetrical, poorly circumscribed with a scalloped, jagged, or notched border, and variegate,…

Primary adenomyoepithelioma of the skin–a variant of apocrine mixed tumor?

Primary adenomyoepithelioma of the skin–a variant of apocrine mixed tumor?

…that had been present for many years. Histopathologic examination revealed a large lobulated neoplasm surrounded by a compressed fibrous pseudocapsule. Most of the cells that constituted the lesion displayed myoepithelial differentiation arranged…

Pigmented tumor in the nostril

Pigmented tumor in the nostril

…of deep infiltration. Basal cell carcinoma, squamous cell carcinoma, melanoma and seborrheic keratosis were considered as possible diagnoses. Figure 1. Exophytic, corneal brown lesion located in the left nostril. The patient had a skin quarter…

Differential Diagnosis in Dermatopathology

Granular-cell tumor vs. Xanthoma

A malignant neoplasm of melanocytes that, in the skin, begins as a macule and may become a patch or a papule. A flat lesion of melanoma tends to be asymmetrical, poorly circumscribed with a scalloped, jagged, or notched border, and variegate,…