RT Book, Section A1 Smith, Allison A1 Maguiness, Sheilagh A1 Hylwa, Sara A2 Soutor, Carol A2 Hordinsky, Maria K. SR Print(0) ID 1190935912 T1 Dermatitis T2 Clinical Dermatology: Diagnosis and Management of Common Disorders, 2e YR 2022 FD 2022 PB McGraw-Hill Education PP New York, NY SN 9781264257379 LK accessmedicine.mhmedical.com/content.aspx?aid=1190935912 RD 2024/03/28 AB Dermatitis (eczema) refers to a heterogeneous group of inflammatory skin disorders that share similarities in clinical appearance and histopathologic findings but may have very different etiologies. It is a common disorder, affecting 1 in 5 people at some point in life. Dermatitis may be acute, subacute, or chronic. In its acute stage, dermatitis is marked by erythema, edema, and vesicles, while chronic dermatitis is characterized by lichenification, fissures, and scaling. Dermatitis can further be delineated as either endogenous (internal factors) or exogenous (external factors). Pruritus is a common symptom of all types of dermatitis.