Primary retroperitoneal neuroendocrine tumor with nonspecific presentation: A case report

Abstract

Primary retroperitoneal tumors are a rare entity of human neoplasms, with primary retroperitoneal neuroendocrine tumors being even more rare. They are usually metastatic and rarely seen as a primary tumor. We report a case of primary retroperitoneal neuroendocrine tumor in a 55-year-old lady, who presented with chronic abdominal pain. Computed tomography showed a retroperitoneal mass and biopsy confirmed the diagnosis of primary retroperitoneal neuroendocrine tumor. Primary retroperitoneal neuroendocrine tumors are rare tumors. Radiology plays a crucial part in the diagnosis of such tumors with the CT scan considers the best imaging modality for diagnosis. Surgical resection remains the definite treatment of retroperitoneal neuroendocrine tumors. Chemotherapy is used for unresectable differentiated tumors.

Primary neuroendocrine tumor in the retroperitoneal cavity: A rare case report

“…These tumors often develop without noticeable symptoms and are frequently discovered incidentally during abdominal imaging procedures, such as ultrasonography (US) or computed tomography (CT) scans [ 10 ]. In this case, the patient presented with left-sided flank pain.…”

Supraclavicular lymph node metastases from distant primary tumors: Case reports and review of the literature

“…In this case, further examinations are indicated in order to look for a primary tumor, as well as a regular check and follow up in case of negative results. This report illustrates the importance of a thorough history and physical examination and regular cancer screening when evaluating a case of metastasis of an unknown primary origin [ 18 ].…”