Bektasoglu, HÜSEYİN KAZIMCIPE, GokhanYARDIMCI, ERKANArici, DİLEK SEMAHASBAHCECI, MustafaKARATEPE, OguzhanMUSLUMANOGLU, Mahmut2019-10-052019-10-052015-03-01Bektasoglu H. K. , CIPE G., YARDIMCI E., Arici D. S. , HASBAHCECI M., KARATEPE O., MUSLUMANOGLU M., -Metachronous metastatic paraganglioma in jejunum as a rare entity: A case report-, ONCOLOGY LETTERS, cilt.9, ss.1278-1280, 2015https://hdl.handle.net/20.500.12645/1410Pheochromocytomas and paragangliomas are neuroendocrine tumors that arise from chromaffin cells of adrenal medulla and extra-adrenal paraganglia, respectively. The recurrence of these neuroendocrine tumors as a jejunal mass causing obstruction in the small intestine is an exceptional entity. The present study reports the case of a 70-year-old male who presented to the Emergency Department of Bezmialem Vakif University Hospital with abdominal pain and vomiting. The patient possessed a history of left nephrectomy due to malignant pheochromocytoma that had invaded into the left kidney eight months prior to presentation. Bowel obstruction was diagnosed and the patient underwent a laparoscopic procedure. Partial resection of the jejunum was performed and immunohistochemical studies revealed the lesion to be malignant paraganglioma. The majority of paragangliomas are chemo- and radioresistant. Surgical excision remains the primary treatment. Metachronous paraganglioma arising from the small intestine is an extremely rare entity and may be a relevant consideration in patients presenting with bowel obstruction.eninfo:eu-repo/semantics/openAccessjejunumArticleWOS:0003509181000478492173173110.3892/ol.2015.286025663897