title: Pseudoscleroderma secondary to phytomenadione (vitamin K1) injections: Texier's disease.
abstract: Cutaneous reactions to vitamin K1 (phytomenadione) are uncommon. They can present as acute eczematous reactions or late reactions that resemble localized scleroderma after vitamin K1 injections. A case is reported here of a patient who developed bilateral sclerodermoid plaques in a cowboy's holster pattern, which persisted for more than 10 years after subcutaneous vitamin K1 injections. Positive intradermal test with vitamin K1 that persisted as an erythematous indurated plaque at the test site for more than 5 months confirmed marked cutaneous hypersensitivity to vitamin K1 in this patient. Serial biopsies of the erythematous plaque at the test site showed transition from spongiotic eczematous features initially to inflammatory morphoea-like histology over a 5 month period. Possible pathogenic mechanisms for phytomenadione-induced pseudoscleroderma are discussed.
authors.affiliation: Department of Dermatology, St Vincent's Hospital, Darlinghurst, New South Wales, Australia.
authors.forename: B K
authors.initials: BK
authors.lastname: Pang
authors.forename: V
authors.initials: V
authors.lastname: Munro
authors.forename: S
authors.initials: S
authors.lastname: Kossard
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001707:Biopsy, Needle; D006801:Humans; D008297:Male; D012594:Scleroderma, Localized / Q000139:chemically induced* / Q000175:diagnosis / Q000473:pathology*; D010837:Vitamin K 1 / Q000009:adverse effects*
chemical_list: D010837:Vitamin K 1