title: Cutaneous manifestations of systemic diseases.
abstract: Many aspects of dermatologic diagnosis are either of importance or interest to the nondermatologist, and there are many excellent textbooks available for guidance. This article focuses on four categories of conditions that are the source of frequent queries from the primary care setting: (1) common skin diseases that frequently mimic systemic illness, (2) common skin diseases that have important systemic associations, (3) common systemic diseases that have prominent cutaneous findings, and (4) the seldom seen but frequently raised concerns regarding cutaneous signs of internal malignancy.
authors.affiliation: Department of Dermatology, University of Iowa College of Medicine, Iowa City, USA.
authors.forename: K J
authors.initials: KJ
authors.lastname: Robson
authors.forename: W W
authors.initials: WW
authors.lastname: Piette
mesh_terms: D002481:Cellulitis / Q000175:diagnosis; D012628:Dermatitis, Seborrheic / Q000175:diagnosis; D003882:Dermatomyositis / Q000175:diagnosis; D048909:Diabetes Complications; D003937:Diagnosis, Differential; D004194:Disease; D004892:Erythema Multiforme / Q000175:diagnosis; D004893:Erythema Nodosum / Q000175:diagnosis; D005483:Flushing / Q000175:diagnosis; D006801:Humans; D007871:Leg Ulcer / Q000175:diagnosis; D008180:Lupus Erythematosus, Systemic / Q000175:diagnosis; D010257:Paraneoplastic Syndromes / Q000175:diagnosis / Q000209:etiology; D017119:Porphyria Cutanea Tarda / Q000175:diagnosis; D011320:Primary Health Care; D012393:Rosacea / Q000175:diagnosis; D012507:Sarcoidosis / Q000175:diagnosis; D012594:Scleroderma, Localized / Q000175:diagnosis; D012595:Scleroderma, Systemic / Q000175:diagnosis; D012871:Skin Diseases / Q000175:diagnosis / Q000209:etiology*; D013262:Stevens-Johnson Syndrome / Q000175:diagnosis; D016463:Sweet Syndrome / Q000175:diagnosis; D013959:Thyroid Diseases / Q000150:complications; D014010:Tinea Versicolor / Q000175:diagnosis; D014820:Vitiligo / Q000175:diagnosis; D014973:Xanthomatosis / Q000175:diagnosis