• Medicine · Sep 2024

    Case Reports

    Large-cell neuroendocrine carcinoma of the bile duct: Case report of surgical treatment and adjuvant chemotherapy of 2 cases.

    • Chang Ho Seo and Ho Joong Choi.
    • Department of Surgery, Bucheon St. Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul, Republic of Korea.
    • Medicine (Baltimore). 2024 Sep 27; 103 (39): e39848e39848.

    RationaleNeuroendocrine carcinoma originating from extrahepatic bile duct is very rare, and only a few cases have been reported. Because of its scarcity of incidence, not much is known about the disease but for its aggressiveness and poor prognosis.Patient ConcernsIn this report, we present 2 cases of large cell neuroendocrine carcinoma (LCNEC) originating from extrahepatic bile duct. Case 1: a 60-year-old woman presented with jaundice but no abdominal pain. Case 2: a 67-year-old man also presented with jaundice, along with abdominal discomfort and appetite loss.DiagnosesCase 1: LCNEC with a focal adenocarcinoma component (pT2aN1M0, pStage IIIB). Case 2: LCNEC with a focal adenocarcinoma component (pT1N1M0, pStage IIB).InterventionsCase 1: the patient underwent left hepatectomy and caudatectomy with hepaticojejunostomy, followed by 6 cycles of adjuvant chemotherapy (etoposide and cisplatin). Case 2: the patient underwent laparoscopic pylorus-preserving pancreatoduodenectomy, followed by 6 cycles of adjuvant chemotherapy (etoposide and cisplatin).OutcomesCase 1: liver metastasis was detected 6 months postoperatively, and despite multiple chemotherapy regimens, the patient died 24 months post-surgery. Case 2: liver metastasis was detected 23 months postoperatively. The patient is still alive 36 months post-surgery after receiving multiple chemotherapy regimens and radiotherapy.LessonsGiven the rarity of LCNEC, it is essential to continue collecting and reporting additional case studies to build a more comprehensive understanding of the disease. Although the prognosis for LCNEC is generally poor, the use of a multidisciplinary approach and further research will be critical in developing more effective treatment strategies in the future.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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