Clinical Considerations and Prognosis of Well-Differentiated Neuroendocrine Tumor Occurring Within a Renal Teratoma—A Case Series

A well-differentiated neuroendocrine tumor within a renal teratoma is rare, with only 10 preceding cases reported.1-10 Teratomas are germ cell tumors containing a combination of tissue types representing multiple germ cell layers.11 They are commonly found in the gonads, mediastinum, and sacrococcygeal regions, making the kidney an atypical location.12 Neuroendocrine tumors are capable of producing a variety of vasoactive mediators.13 They most...