Differential Diagnosis in Dermatopathology

Discussions

Pruritic urticarial papules and plaques of pregnancy (PUPPP) and a superficial response to an assault by an arthropod are inflammatory diseases that share many features clinical and findings histopathologic. When viewed through a conventional micros…

Differential Diagnosis in Dermatopathology

Discussions

…es acuta and pityriasis lichenoides chronica are not different diseases, but different names for changes morphologic of the same disease. Pityriasis lichenoides acuta and pityriasis lichenoides chronica have many findings histopathologic in common: m…

Differential Diagnosis in Dermatopathology

Discussions

…fatal; morphea never is. Scleredema (known also as scleredema adultorum of Buschke) affects young adults. About 50 percent of patients present themselves to a physician at an age younger than 20 years. There is no predilection for sex. The changes a…

Histologic Diagnosis of Inflammatory Skin Diseases

Lupus erythematosus

…tumidus. Because the precise nosologic status of Degos’ disease and pernio still is in debate, those two conditions are being treated separately at the very end of this subchapter. Correlation clinicopathologic A “butterfly blush,”…

Differential Diagnosis in Dermatopathology

Discussions

Features clinical common to amputation neuroma secondary to rudimentary supernumerary digit and acquired digital fibrokeratoma are location, shape, and consistency. Both conditions occur on or near fingers and both are firm, keratotic, polypoid proj…

Histologic Diagnosis of Inflammatory Skin Diseases

Acquired epidermolysis bullosa

…idermolysis bullosa acquisita. In: Jordon RE. Atlas of Bullous Disease. New York: Churchill Livingstone, 2000;125–38. Wise F, Lautman MF. Epidermolysis bullosa beginning in adult life. The acquired form of the disease, with report of a case and revie…

Histologic Diagnosis of Inflammatory Skin Diseases

Eosinophilic folliculitis

…Infants of both sexes, restricted usually to the scalp; young adults, especially males, infected by HIV (eosinophilic pustular folliculitis of HIV), and some Japanese and Caucasians with no infection by HIV (Ofuji’s disease) Distribution of le…

Histologic Diagnosis of Inflammatory Skin Diseases

Parasitic infestations

…zil. Int J Dermatol 2004 Jul;43(7):511-15. Kaposi M. Parasitic diseases of the skin, dermatoses parasitaire. In: Hebra F, Kaposi M. On Diseases of the Skin Including the Exanthemata. London: New Sydenham Society, 1880: 5. Magana M, Messina M, Bustama…

Differential Diagnosis in Dermatopathology

Trichoadenoma vs. Microcystic adnexal carcinoma

Conditions caused by infection with different strains of herpesvirus and typified when fully developed by tense vesicles, herpes simplex consisting of grouped vesicles on an erythematous base, zoster being made up of vesicles, sometimes hemorrhagic…