Histologic Diagnosis of Inflammatory Skin Diseases

Dermatofibroma

…absence of trauma. Desmoplastic melanoma is more asymmetrical, subtly variegate in color, and unaffiliated with a “dimple sign.” Spitz’s nevus may be red, orange, or pink, as well as brown or black, but it is not firm unless it is w…

Histologic Diagnosis of Inflammatory Skin Diseases

Lupus erythematosus

…matosus: a cutaneous marker for a distinct lupus erythematosus subset. Arch Dermatol 1979;115:1409–15. Srivastava M, Rencic A, Diglio G, et al. Drug-induced, Ro/SSA-positive cutaneous lupus erythematosus. Arch Dermatol 2003;139(1):45-49. Unna PG. Ule…

Histologic Diagnosis of Inflammatory Skin Diseases

"Folliculitis" (Infundibulitis)

“Folliculitis” (Infundibulitis) Synonyms What is designated, universally, folliculitis is, in actuality, infundibulitis. In short, infundibulitis is NOT a synonym for folliculitis; the former, for purposes practical, is a suppurative pro…

Histologic Diagnosis of Inflammatory Skin Diseases

Androgenetic (common) alopecia

Androgenetic (common) alopecia Presentation stereotypical Age and sex Adults, men mostly and more extensively than in women Distribution of lesions Symmetric on the scalp, particularly the frontoparietal region and the vertex of men and the midporti…

Histologic Diagnosis of Inflammatory Skin Diseases

…which deposits of a fibrillary protein (amyloid) appear in the skin as macules, papules, and nodules consequent to the effects of local factors, or as patches (which may be purpuric), plaques, nodules, and tumors as a result of a systemic disease lik…

Histologic Diagnosis of Inflammatory Skin Diseases

Rosacea

…leton, 1924. Ramelet AA, Perroulaz G. Rosacea: histopathologic study of 75 cases. Ann Dermatol Venereol 1988;115:801–6. Unna PG. The Histopathology of the Diseases of the Skin. English translation by Norman Walker. Edinburgh: William F Clay, 1896. Ur…

Histologic Diagnosis of Inflammatory Skin Diseases

Lichen sclerosus et atrophicus

…erosus et atrophicus: With report of a case. JAMA 1909;53:369. Stühmer A. Balanitis xerotica obliterans (post operationem) und ihre Beziehungen zur “Kraurosis glandis et preputii penis.” Arch Dermatol Syphilol 1928;156:613–23. Unna PG. Di…

Histologic Diagnosis of Inflammatory Skin Diseases

Mucha-Habermann disease

Mucha-Habermann disease Synonyms Pityriasis lichenoides Presentation stereotypical Age and sex Children and young adults especially; more common in males Distribution of lesions Widespread, particularly arms, legs, trunk, and buttocks Arrangement of…