Search Results for: hamartoma

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Blue Nevus?

…nofibroma, blue nevus of Jadassohn-Tieché, pilar neurocristic hamartoma, and dermal melanocytoma.” Rhodes AR. Neoplasms: benign neoplasias, hyperplasia, and dysplasias of melanocytes. In: Fitzpatrick TB, Eisen AZ, Wolff K, et al., eds. Dermatol…

Histologic Diagnosis of Inflammatory Skin Diseases

Definition of Inflammation in Historical Perspective

…stations of disease, the others being neoplasia, hyperplasia, hamartoma, malformation, degeneration, and cyst. With regard to the skin, Ferdinand Hebra, in the third volume of Virchow’s Handbook of Special Pathology and Therapy published in 186…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Blaschkitis?

…wn inflammatory dermatitis in the lines of Blaschko nor to an hamartoma nor to an X-linked disease. Cutaneous antigenic mosaicism, the expression of which might be induced by a viral infection, could trigger this localized inflammatory T-cell respons…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Eccrine Neoplasms?

…duct proliferation Eccrine-centered nevus Eccrine angiomatous hamartoma Syringofibroadenoma or acrosyringeal nevus Comedo nevus of the palm, linear eccrine nevus with comedone, porokeratotic eccrine ostial nevus or porokeratotic eccrine duct and hair…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Verruciform Xanthoma?

…he end stage of a verruca that involuted); an alteration in a hamartoma, e.g., an epidermal nevus; a repeated insult, e.g., blisters of recessive dystrophic epidermolysis bullosa; and a change in a long-established neoplasm, e.g., squamous-cell carci…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Epidermal Cyst and Epidermoid Cyst?

…20;decapitation secretion.” The cystic component of the hamartoma known as steatocystoma is lined by epithelium just like that of a sebaceous duct, namely, a thin epithelium that possesses a basal, spinous, subtly granular, and thin cornified l…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Myxoma?

…Williams & Wilkins, 1990:1020. “Lastly, neoplastic-hamartomatous cutaneous mucinosis include mucinous nevus, a benign hamartoma, and myxoma, which is a benign tumor to be differentiated from reactive cutaneous focal mucinosis.” Rongi…

Dermatology Practical & Conceptual

Dermatoscopic findings of atrophic dermatofibrosarcoma protuberans

…atrophic dermatofibroma and medallion-like dermal dendrocyte hamartoma. While DFSP cells are positive for CD34 and negative for factor XIIIa, atrophic dermatofibroma cells are usually negative for CD34 and both of CD34 and factor XIIIa are positive…

Differential Diagnosis in Dermatopathology

Syringocystadenoma papilliferum vs. Hidradenoma papilliferum

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, mostly…