title: [Acrokeratosis paraneoplastica with bullous lesions associated with esophageal squamous cell carcinoma].
abstract: Acrokeratosis paraneoplastica (Bazex syndrome) is characterized by an acral eruption with a psoriasiform appearance, which usually presents simultaneously with an underlying neoplasm. We describe the case of a 64-year-old male who presented with a two-month history of pruritic, flaky, erythematous lesions on the palms, backs of the fingers and toes and pinnae, accompanied by bullous lesions. The patient also reported progressive dysphagia in the last six months, and general wasting with a loss of 15 kg. The digestive endoscopy revealed a squamous cell carcinoma in the proximal esophagus. The histopathological study of the bullous lesions showed the presence of a subepidermal bulla, and direct immunofluorescence revealed granular deposits of IgG, IgA and C3 in the basal membrane of the healthy perilesional skin. These clinical/pathological findings support the existence of an immunological pathogenic mechanism related to this entity.
authors.affiliation: Departamento de Dermatología, Complejo Hospitalario Universitario, Facultad de Medicina, Santiago de Compostela, España. mejaime@usc.es
authors.forename: Miguel
authors.initials: M
authors.lastname: Cabanillas
authors.forename: Lidia
authors.initials: L
authors.lastname: Pérez-Pérez
authors.forename: Dolores
authors.initials: D
authors.lastname: Sánchez-Aguilar
authors.forename: Virginia
authors.initials: V
authors.lastname: Fernández-Redondo
authors.forename: Jaime
authors.initials: J
authors.lastname: Toribio
mesh_terms: D000169:Acrodermatitis / Q000209:etiology*; D001768:Blister / Q000209:etiology*; D002294:Carcinoma, Squamous Cell / Q000150:complications* / Q000175:diagnosis / Q000556:secondary; D003680:Deglutition Disorders / Q000209:etiology; D004431:Ear, External; D004938:Esophageal Neoplasms / Q000150:complications* / Q000175:diagnosis; D017809:Fatal Outcome; D006501:Hepatic Encephalopathy / Q000209:etiology; D006801:Humans; D007642:Keratosis / Q000209:etiology*; D008113:Liver Neoplasms / Q000150:complications / Q000556:secondary; D008297:Male; D008875:Middle Aged; D010257:Paraneoplastic Syndromes / Q000209:etiology*; D016066:Pleural Effusion, Malignant / Q000209:etiology; D019282:Wasting Syndrome / Q000209:etiology