Dificultad diagnóstica en masa retroperitoneal. Reporte de un caso / Diagnostic difficulty in retroperitoneal mass: A case report

El Schwannoma se origina de la vaina perineural de Schwannoma, se detecta con frecuencia incidentalmente en estudios imagenológicos siendo el principal método diagnóstico la Tomografía Computada. El tratamiento es la resección quirúrgica con márgenes libres. Se presenta una paciente femenina de 49 años, en control por oncología por enfermedad de base, cáncer de mama izquierda, se identifica por TAC y PECT/TC imagen voluminosa en retroperitoneo situación lateroaórtica izquierda de configuración no quística e hipermetabólica, solicita biopsia percutánea, ante la falta de ventana, se decide exeresis completa de masa. Diagnóstico definitivo patológico Schwannoma. Sin indicación de tratamiento adyuvante, cursa buena evolución postoperatoria sin recidiva.

Schwannoma, a benign tumor that arises from Schwann cells of the perineural nerve sheath, is often incidentally detected in imaging tests and mainly diagnosed by CT scan. Treatment consists of surgical resection with clear margins. We present the case of a 49-year-old female patient subject to Oncology Department follow-up due to an underlying disease, left breast cancer. A large, hypermetabolic, noncystic mass in the retroperitoneal region is identified by CT and PECT/CT scan in the left lateral aortic area. A percutaneous biopsy is requested. Due to the limited acoustic window, complete resection of the mass is decided. Final histopathology diagnosis of Schwannoma. No adjuvant treatment indication; undergoing favorable postoperative progress, without recurrence

Neurilemoma: relato de caso clínico / Neurilemmoma: a case report

O Neurilemoma (schawannoma) é um tumor benigno que sedesenvolve a partir de uma proliferação desordenada das célulasde Schwann. É uma lesão nodular, assintomática, localizadapreferencialmente na língua e semelhante a lesões proliferativasnão neoplásicas. Microscopicamente exibe padrões histológicoscaracterísticos denominados Antoni A e Antoni B. O objetivodeste trabalho e fazer uma breve revisão da literatura e relatarum caso clínico

Neurilemmoma (Schwannoma) is a benign tumor of nervesheath origin. It occurs in the head and neck regions and a fewcases are reported intraorally. Neurilemoma of the tongue presentsas a painless mass, in the third decade of life and displayno gender predilection. It is generally round or oval shaped, solitary,soft, smooth, sharply circumscribed, slow growing, andwell encapsulated, and usually ranges in size from 0.25 to 3.00cm. Surgical enucleation is easy to perform and recurrence israre. Histopathologic examination shows an encapsulated spindlecell tumor, of which two types of the tissue are Antoni A andB. The authors report a case of neurilemmoma of the tongue anda brief review of the literature of this unusual clinical entity.