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Open Access Case report

Large cell neuroendocrine carcinoma presenting with neck swelling in the submandibular gland: a case report

Hideto Kawaratani1*, Tatsuhiro Tsujimoto1, Masaaki Yoshikawa1, Fumi Kawanami1, Yusaku Shirai1, Hitoshi Yoshiji1, Kousaku Morita2 and Hiroshi Fukui1

Author Affiliations

1 Third Department of Internal Medicine, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522, Japan

2 Department of Diagnostic Pathology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522, Japan

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Journal of Medical Case Reports 2013, 7:81  doi:10.1186/1752-1947-7-81

Published: 19 March 2013

Abstract

Introduction

Large cell neuroendocrine carcinoma in the salivary glands is rare. We report a second case of large cell neuroendocrine carcinoma of the submandibular gland diagnosed at autopsy, and a review of the literature.

Case presentation

A 68-year-old Japanese man was referred to our hospital for thorough investigation of swelling on the right side of his neck. Fine-needle aspiration cytology of the cervical mass suggested poorly differentiated metastatic carcinoma. The primary tumor could not be detected by several examinations. One month after admission, he died of cancer. An autopsy was performed, and it revealed a tumor of the right submandibular gland. The histopathological diagnosis was large cell neuroendocrine carcinoma of the submandibular gland.

Conclusion

To the best of our knowledge, only eight cases of large cell neuroendocrine carcinoma in the salivary glands, including our case, have been reported. This report indicates total biopsy and immunohistochemistry are necessary for diagnosing large cell neuroendocrine carcinoma properly.

Keywords:
Autopsy; Large cell neuroendocrine carcinoma; Salivary gland; Submandibular gland