title: Bazex syndrome (acrokeratosis paraneoplastica) diagnosed in a patient with oral persistent ulcerations.
abstract: Paraneoplastic syndromes associated with head and neck cancer are rare and have been reported under dermatological, endocrine, hematological, neurological and rheumatological disorders. Bazex syndrome is an intriguing paraneoplasia that can be associated with head and neck squamous cell carcinomas. A range of symmetrical dermatological manifestations, with a clear predilection to extremities, that encompasses erythematous squamous plaques, skin scaling and nail dystrophy can provide a psoriasiform pattern in Bazex syndrome. In addition to these tricky clinical features, the rarity of the disease and the lack of understanding on Bazex syndrome generally make such cases to be mismanaged as psoriasis or lichen planus, causing an important delay in the diagnosis of the underlying malignancy. The authors describe a case of Bazex syndrome that occurred in a patient with a recently diagnosed tongue squamous cell carcinoma. Clinicians should consider paraneoplasia when assessing skin and/or oral persistent lesions.
authors: Oral Diagnosis Department, Semiology and Oral Pathology Areas, Piracicaba Dental School, Campinas State University (UNICAMP), Piracicaba, SP, Brazil.
authors: Alan Roger
authors: AR
authors: Santos-Silva
authors: Marcelo Brum
authors: MB
authors: Correa
authors: Pablo Agustin
authors: PA
authors: Vargas
authors: Oslei Paes
authors: OP
authors: Almeida
authors: Marcio Ajudarte
authors: MA
authors: Lopes
mesh_terms: D000783:Aneurysm / Q000473:pathology; D002280:Basal Cell Carcinoma / Q000473:pathology; D017809:Fatal Outcome; D018219:Histiocytoma, Benign Fibrous / Q000473:pathology; D006801:Humans; D007039:Hypotrichosis / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009092:Mucous Membrane / Q000473:pathology; D054039:Onycholysis / Q000473:pathology*; D019226:Oral Ulcer / Q000473:pathology*; D010257:Paraneoplastic Syndromes / Q000473:pathology*; D010409:Penile Diseases / Q000473:pathology; D012867:Skin / Q000473:pathology; D017444:Skin Diseases, Papulosquamous / Q000473:pathology*; D012878:Skin Neoplasms / Q000473:pathology