RESUMEN
Peripheral nerve mucoid degeneration (PNMD) is a rare non-neoplastic degenerative condition characterized by endoneural deposit of mucoid matrix. Herein, we report a case of PNMD involving the sciatic nerve with preoperative features, surgical treatment and pathological findings.
Asunto(s)
Degeneración Nerviosa/diagnóstico por imagen , Degeneración Nerviosa/cirugía , Enfermedades del Sistema Nervioso Periférico/diagnóstico por imagen , Enfermedades del Sistema Nervioso Periférico/cirugía , Nervio Ciático/diagnóstico por imagen , Nervio Ciático/cirugía , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Nervio Ciático/patologíaRESUMEN
Triple-negative breast carcinomas constitute a wide spectrum of lesions, mostly being highly aggressive. Nevertheless, some special histologic subtypes can have low malignant potential. The purpose of the present paper is to review diagnostic criteria and prognostic parameters of breast neoplasms of special histotypes. Specifically, adenoid cystic carcinoma, adenomyoepithelioma, acinic cell carcinoma, mucoepidermoid carcinoma, tall cell carcinoma with reverse polarity, and secretory carcinoma will be discussed. For each tumour, definition and morphological and molecular features, together with prognostic parameters, will be presented. Paradigmatic cases will be illustrated.