Search Results for: hamartoma

Differential Diagnosis in Dermatopathology

Trichoadenoma vs. Microcystic adnexal carcinoma

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

Sebaceous hyperplasia vs. Nevus sebaceus of Jadassohn

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

Discussions

…mm to 15 mm and may appear any time during adult life. Many authors consider it to be a benign neoplasm, but for us it is a hamartoma, consisting as it does of innumerable infundibular structures “normal” but cystic in arrangement…

Differential Diagnosis in Dermatopathology

Discussions

…ommonest neoplasm of the skin and the commonest neoplasm to develop within the hamartoma named badly nevus sebaceus (it is a hamartoma with abnormalities of many elements of the skin, not simply ones sebaceous). In actuality, squamous-cell carcinoma…

Differential Diagnosis in Dermatopathology

Discussions

…son who bears them. The surface of them often becomes cobblestone-like or warty. As sebaceous glands enlarge at puberty, the hamartoma takes on a yellow-orange color that reflects abundant lipid present in numerous sebaceous lobules of different…

Differential Diagnosis in Dermatopathology

Study By Disease

…cyst, isthmic-catagen type (Quiz #636) Follicular cyst, isthmic-catagen type, ruptured (Quiz #65) Folliculo-apocrine cystic hamartoma (Quiz #74) Foreign body granulomatous dermatitis and panniculitis secondary to Artecoll (Quiz #603) Foreign body…