title: An incidentally discovered small and asymptomatic para-aortic paraganglioma.
abstract: Preoperative diagnosis of asymptomatic paraganglioma is difficult due to the lack of specific symptoms. In this report, we present a rare case of a small and asymptomatic para-aortic paraganglioma. A 34-year-old woman who complained of back pain was admitted for further examination. No abnormal findings were observed on physical or laboratory examinations. An abdominal CT scan and an abdominal MRI incidentally noted a mass about 3 cm in diameter adjacent to the right edge of the inferior vena cava. The following aortic angiography showed the tumor with a feeding artery diverting directly from the aorta. The tumor was completely resected by laparotomy. The resected tumor, 3 x 3 x 3 cm in size, was soft, dark-reddish and encapsulated. Immunohistochemical examinations showed that it was positive for neuron-specific enolase, chromogranin A and adrenocorticotropin. Under these findings, the diagnosis of para-aortic paraganglioma was determined. Seven years after the operation, she remains asymptomatic and free of disease.
authors: Department of Surgery, Rakuwakai-Otowa Hospital, Kyoto, Japan. rakuwadr011@rakuwadr.com
authors: T
authors: T
authors: Yamaguchi
authors: M
authors: M
authors: Tada
authors: H
authors: H
authors: Takahashi
authors: R
authors: R
authors: Kagawa
authors: R
authors: R
authors: Takeda
authors: S
authors: S
authors: Sakata
authors: M
authors: M
authors: Yamamoto
authors: D
authors: D
authors: Nishizaki
mesh_terms: D000328:Adult; D001027:Aortography; D001416:Back Pain / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D010220:Para-Aortic Bodies / Q000473:pathology*; D010236:Paraganglioma, Extra-Adrenal / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery*; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery*; D014057:Tomography, X-Ray Computed