A Case of Bladder Large Cell Carcinoma with Review of the Literature

Lopedote, Paolo; Yosef, Amir; Kozyreva, Olga

doi:10.1159/000521607

Large-cell neuroendocrine carcinoma of the bladder: A case report

Zhou,

Yang

2024

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BACKGROUND Bladder neuroendocrine tumors are few and exhibit a high degree of aggressiveness. The bladder is characterized by four distinct forms of neuroendocrine tumors. Among them, large-cell neuroendocrine carcinoma is the least prevalent but has the highest level of aggressiveness. To date, only a few dozen cases have been reported. CASE SUMMARY Here, we report the case of a 65-year-old man with large-cell neuroendocrine carcinoma of the bladder. The patient presented to the Department of Urology at our hospital due to the presence of painless hematuria without any identifiable etiology. During hospitalization, abdominal computed tomography revealed the presence of an irregular mass on the right anterior wall of the bladder. A cystoscopic nonradical resection of the bladder lesion was performed. The postoperative pathological examination revealed large-cell neuroendocrine bladder cancer.

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Primary pure large cell neuroendocrine carcinoma of the urinary bladder: a case report and literature review

Sun,

Liang,

Zhang

et al. 2024

Front. Oncol.

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BackgroundThe large cell neuroendocrine carcinoma (LCNEC) of the urinary bladder is a rare malignancy. With its high aggressiveness and poor prognosis, the disease is often accompanied by metastasis or recurrence. The lack of specific clinical manifestations and imaging features causes considerable challenges for clinical diagnosis and treatment.Case presentationWe report a case of LCNEC of the urinary bladder. The patient was a 79-year-old male admitted to our hospital with recurrent episodes of asymptomatic gross hematuria. Based on the computed tomography (CT) scan findings, our patient presented with a bladder mass displaying invasion into the serosal layer, suggestive of muscle involvement and indicative of malignancy. The patient received a radical cystectomy, and the postoperative pathology confirmed primary, pure LCNEC of the urinary bladder. We gave him 16 cycles of toripalimab immunotherapy. As of follow-up, the patient was alive, and periodic CT reexamination showed no evidence of recurrence.ConclusionsWe reviewed domestic and foreign literature and found no explicit treatment protocols exist for the disease. Surgical resection combined with chemotherapy were the most common treatments. Herein, we reported the first case of primary, pure LCNEC of the urinary bladder treated by radical cystectomy combined with pure immunotherapy, achieving sustained remission, which provides a new idea for the immunotherapy and integrative treatment of the disease.

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Large-cell neuroendocrine carcinoma of the bladder: A case report

Zhou,

Yang

2024

World J Clin Oncol

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BACKGROUND Bladder neuroendocrine tumors are few and exhibit a high degree of aggressiveness. The bladder is characterized by four distinct forms of neuroendocrine tumors. Among them, large-cell neuroendocrine carcinoma is the least prevalent, but has the highest level of aggressiveness. The 5-year survival rate for large-cell neuroendocrine carcinoma of the bladder is exceedingly poor. To date, only a few dozen cases have been reported. CASE SUMMARY Here, we report the case of a 65-year-old man with large-cell neuroendocrine carcinoma of the bladder. The patient presented to the Department of Urology at our hospital due to the presence of painless hematuria without any identifiable etiology. During hospitalization, abdominal computed tomography revealed the presence of an irregular mass on the right anterior wall of the bladder. A cystoscopic non-radical resection of the bladder lesion was performed. The postoperative pathological examination revealed large-cell neuroendocrine bladder cancer. Previous reports on cases of large-cell neuroendocrine carcinoma cases were retrieved from PubMed, and the present paper discusses the currently recognized best diagnostic and treatment options for large-cell neuroendocrine carcinoma based on the latest research progress. CONCLUSION Large-cell neuroendocrine carcinoma of the bladder is an uncommon malignancy with a highly unfavorable prognosis. Despite ongoing efforts to prolong patient survival through multidisciplinary therapy, the prognosis remains unfavorable. Large-cell neuroendocrine carcinoma continues to be a subject of uncertainty.

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A Case of Bladder Large Cell Carcinoma with Review of the Literature

Cited by 4 publications

References 69 publications

Large-cell neuroendocrine carcinoma of the bladder: A case report

Large-cell neuroendocrine carcinoma of the bladder: A case report

Primary pure large cell neuroendocrine carcinoma of the urinary bladder: a case report and literature review

Large-cell neuroendocrine carcinoma of the bladder: A case report

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