RESUMO
Lipedematous alopecia (LA) is a rare disease entity that manifests as increased thickness of subcutaneous fatty tissue in the scalp with a variable degree of acquired, non-scarring alopecia. Although the pathogenesis of alopecia in LA is not clear, it is assumed that the increased thickness of subcutaneous fat retards hair growth by disturbing the peripheral microenvironment of the hair bulb. LA is clinically distinguishable from lipedematous scalp (LS) in that LS is not associated with any hair abnormalities, while LA is characterized by variable degree of hair loss. However, both LA and LS share increased scalp thickness. Here, we describe a rare case of LA on the frontal scalp of an Asian woman, further characterize the clinical and histologic features, and suggest applying an integrated diagnosis as lipedematous diseases of the scalp.
Assuntos
Feminino , Humanos , Tecido Adiposo , Alopecia , Povo Asiático , Diagnóstico , Cabelo , Lipomatose , Doenças Raras , Couro Cabeludo , Gordura SubcutâneaRESUMO
Lipedematous scalp was first reported by Cornbleet in 1935, and is characterized by an increase in the thickness of scalp subcutaneous fat tissue without hair changes. We present a case of a 40-year-old female with a diffusely thickened scalp since birth. The lesion was soft, and movable without color changes or hair loss. Histopathologic features and magnetic resonance imaging findings were compatible with a diagnosis of lipedematous scalp involving almost the entire scalp.