RESUMO
Systemic vasculitis secondary to thyroid carcinomas is exceptional. We report the case of a 55-year-old woman who presented with systemic vasculitis involving leucocytoclastic cutaneous vasculitis and renal disorders secondary to papillary thyroid carcinoma (PTC). Her symptoms resolved completely after total thyroidectomy. Other causes of vasculitis were excluded. To our knowledge, this is only the second case reported of systemic vasculitis associated with PTC in a paraneoplastic manner.
Assuntos
Carcinoma Papilar/patologia , Síndromes Paraneoplásicas/patologia , Neoplasias da Glândula Tireoide/patologia , Vasculite Leucocitoclástica Cutânea/patologia , Vasculite/patologia , Carcinoma Papilar/complicações , Carcinoma Papilar/diagnóstico por imagem , Carcinoma Papilar/cirurgia , Feminino , Humanos , Nefropatias/complicações , Pessoa de Meia-Idade , Radioterapia Adjuvante , Câncer Papilífero da Tireoide , Neoplasias da Glândula Tireoide/complicações , Neoplasias da Glândula Tireoide/diagnóstico por imagem , Neoplasias da Glândula Tireoide/cirurgia , Tireoidectomia/métodos , Ultrassonografia , Vasculite/complicações , Vasculite/etiologia , Vasculite Leucocitoclástica Cutânea/complicaçõesAssuntos
Interleucinas/deficiência , Interleucinas/genética , Peptídeos e Proteínas de Sinalização Intracelular/genética , Mutação/genética , Proteínas Nucleares/genética , Psoríase/genética , Histona Metiltransferases , Histona-Lisina N-Metiltransferase , Homozigoto , Humanos , Lactente , MasculinoRESUMO
BACKGROUND: Pemphigus vulgaris is a bullous auto-immune disease affecting the skin and mucosa. It is characterised by acantholysis that results in the formation of intraepithelial bullous lesions. Herein we report a case distinguished by its unusual clinical presentation. PATIENTS AND METHODS: A 45-year-old man, a chronic smoker, consulted for hyperkeratotic lesions of the toes on the right foot present for 5 months. Examination revealed a violet colour of the toes associated with localised yellowish keratoderma on the sole of the foot and impaired toe nails, as well as impairment on the nails of the first, third and fourth fingers on the right hand. In addition, two hyperkeratotic plaques with crusts were noted on the patient's forehead. Histological examination of a biopsy sample taken from the nail bed of the fourth toe on the right foot showed suprabasal acantholysis with a characteristic tombstone appearance. Direct immunofluorescence confirmed the diagnosis of pemphigus. Oral corticosteroid therapy was initiated consisting of prednisone 1.5mg/kg per day. Improvement of the nail lesions and subsidence of the lesions on the patient's forehead occurred after three months of treatment. DISCUSSION: During the course of pemphigus, the nail findings most commonly reported in the literature are paronychia, onychomadesis and onycholysis. However, these signs are generally seen in patients with known pemphigus vulgaris and only rarely indicate bullous disease. The case we report illustrates a special situation in which pemphigus vulgaris was revealed by unusual skin and nail lesions.