Primary small cell neuroendocrine carcinoma of the urinary tract: a case report and literature review

This case underscores the potential efficacy of multimodal therapy, combining robot-assisted surgical resection with adjuvant etoposide/cisplatin chemotherapy, in the management of primary small cell neuroendocrine carcinoma. The patient was detected no local or distant metastases, at 9 months postoperatively. However, the follow-up period of only 9 months is relatively short, which limits the long-term assessment of recurrence or survival. These findings provide a reference for clinical decision-making and underscore the potential benefits of multimodal treatment in this rare malignancy.