Month: August 2018

Calciphylaxis is characterized by progressive cutaneous necrosis associated with small- and medium­sized vessel calcification occurring in the setting of end-stage renal disease, diabetes mellitus, and hyperparathyroidism. Cutaneous involvement presents as

Definition Acrochordon (Skin tag): An epithelial outgrowth or protruding polypoid epithelial neoplasm. Callosities: Hyperkeratosis of skin of hands or feet as a reaction to rubbing or to pressure over bony

Behcet’s syndrome (BS) is a perplexing multisystem inflammation which, in the most recent definition of diagnostic criteria, has one basic major feature-recurrent oral aphthous ulcers (AU)-and two of the following

Basal cell carcinoma (BCC) is the most common type of skin cancer. This malignant tumor is locally invasive, aggressive, and destructive, but there is a limited capacity to metastasize. The

Definition Invasion of the skin, its appendages, and/or subcutaneous layer by way of thermal, mechanical, chemical, or physiologic injury and the colonization or infection with pathogenic bacteria of both aerobe

Bacillary angiomatosis (BA) is a systemic infection caused by Bartonella species, occurring nearly exclusively in HIV-infected individuals, characterized by cutaneous vascular tumors resembling Kaposi’s sarcoma and symptomatic multisystemic infection, most

Atherosclerosis obliterans (ASO), especially of the lower extremities, is associated with a spectrum of cutaneous findings, ranging from slowly progressive ischemic changes to the sudden appearance of ischemic lesions following

Aphthous ulcers (AU) are painful mucosal ulcerations of idiopathic etiology occurring commonly in the oropharynx and less commonly in the esophagus, upper and lower GI tract, and anogenital epithelium, characterized

Androgenetic alopecia (AGA) is the common progressive balding that occurs through the combined effect of a genetic predisposition and the action of androgen on the hair follicles of the scalp.

Alopecia areata is a localized loss of hair in round or oval areas without any visible inflammation of the skin in hair-bearing areas; the most common presenting site is the