Search Results for: sinus

Differential Diagnosis in Dermatopathology

Discussions

…te, in years, in pitted or hypertrophic scars or in tenacious sinus tracts of “acne conglobata.” Comedones traditionally have been described as “open” (blackheads) or “closed” (whiteheads). In actuality, a comedo i…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Churg-Strauss Granuloma and Allergic Granulomatosis?

…trauss allergic granulomatosis are agreed on, to wit, asthma, sinusitis, and sometimes neuropathy. Eosinophilia is invariable. The findings histopathologic in allergic granulomatosis, however, are not agreed on. Virtually all authors acknowledge the…

Histologic Diagnosis of Inflammatory Skin Diseases

Histiocytosis X

…Kinderheilk 1933;55:212–47. Slone SP, Fleming DR, Buchino JJ. Sinus histiocytosis with massive lymphadenopathy and Langerhans cell histiocytosis express the cellular adhesion molecule CD31. Arch Pathol Lab Med 2003;127(3):341–44. Thannhauser SJ. Eosi…

Differential Diagnosis in Dermatopathology

Trichoadenoma vs. Microcystic adnexal carcinoma

A disease of infundibulosebaceous units, especially infundibula, that may manifest itself solely as noninflammatory lesions, i.e., comedones and intact cysts, or as inflammatory lesions, i.e., papules, nodules, and pustules. The process may resolve…

Differential Diagnosis in Dermatopathology

Discussions

…ly and can penetrate into deep structures such as a paranasal sinus and an orbit. Many authors consider microcystic adnexal carcinoma to be a neoplasm of follicular and eccrine origin. We have observed “decapitation” secretion episodicall…