title: Transient, transverse melanonychia associated with Graves disease and acute hepatitis.
abstract: Melanonychia is a black, tan, or brown streak within the nail plate subsequent to activation of melanocytes in the nail matrix. We present a case of a Haitian girl who presented with transverse melanonychia involving all 10 fingernails in the setting of hyperthyroidism and acute liver injury. Melanonychia has been described only one time in the literature in the setting of hyperthyroidism though this patient also underwent radium treatment which could have led to nail changes.
authors: Department of Medical Education, Mount Sinai School of Medicine, New York, NY 10029, USA. robert.accordino@mssm.edu
authors: Robert E
authors: RE
authors: Accordino
authors: Allison
authors: A
authors: Langs-Barlow
authors: Robert G
authors: RG
authors: Phelps
authors: Blair
authors: B
authors: Hammond
authors: Stephen E
authors: SE
authors: Mercer
mesh_terms: D000293:Adolescent; D001706:Biopsy; D005260:Female; D006111:Graves Disease / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D006505:Hepatitis / Q000150:complications / Q000175:diagnosis*; D006801:Humans; D009260:Nail Diseases / Q000175:diagnosis* / Q000209:etiology; D010859:Pigmentation Disorders / Q000175:diagnosis* / Q000209:etiology; D013965:Thyroidectomy