Mixed Small Cell and Large Cell Neuroendocrine Carcinoma of the Endometrium

A Case Report and Literature Review

Authors

  • Joshua Uyboco St. Luke's Medical Center - Quezon City, Philippines
  • Mary Anne Cruz-Ignacio St. Luke's Medical Center - Quezon City, Philippines https://orcid.org/0000-0002-2529-8208
  • Maria Concepcion Cenizal-Santos St. Luke's Medical Center - Quezon City, Philippines https://orcid.org/0000-0001-6305-328X
  • Jeffrey So St. Luke's Medical Center - Quezon City, Philippines https://orcid.org/0000-0002-7819-4488
  • Maximino Bello III St. Luke's Medical Center - Quezon City, Philippines
  • Jose Moran St. Luke's Medical Center - Quezon City, Philippines

DOI:

https://doi.org/10.21141/PJP.2021.05

Keywords:

Endometrial Neoplasms, Neuroendocrine Carcinoma, Large Cell Carcinoma, Small Cell Carcinoma

Abstract

Neuroendocrine carcinoma (NEC) of the endometrium is a rare, aggressive subtype of endometrial cancer.  We report a 61-year-old female with a history of breast cancer, s/p modified radical mastectomy, chemotherapy, radiotherapy and hormonal (tamoxifen) therapy, who  presented with post-menopausal bleeding. Patient underwent TAH-BSO with lymph node dissection, and was diagnosed with a mixed small cell neuroendocrine carcinoma (SCNEC) and large cell neuroendocrine carcinoma (LCNEC), confirmed by positive immunohistochemical staining for neuroendocrine markers.  No other lesions were identified on PET-CT, making a primary endometrial NEC the most likely diagnosis.  We review the clinical and pathologic characteristics of endometrial neuroendocrine carcinomas.

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Author Biographies

Joshua Uyboco, St. Luke's Medical Center - Quezon City, Philippines

Resident (graduate), Institute of Pathology

Mary Anne Cruz-Ignacio, St. Luke's Medical Center - Quezon City, Philippines

Fellow (graduate)

Maria Concepcion Cenizal-Santos, St. Luke's Medical Center - Quezon City, Philippines

Resident (graduate), Department of Obstetrics and Gynecology

Jeffrey So, St. Luke's Medical Center - Quezon City, Philippines

Consultant, Institute of Pathology

Maximino Bello III, St. Luke's Medical Center - Quezon City, Philippines

Consultant, Cancer Institute

Jose Moran, St. Luke's Medical Center - Quezon City, Philippines

Consultant, Department of Obstetrics and Gynecology

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Published

06/29/2021

How to Cite

Uyboco, J., Cruz, M. A., Cenizal, M. C., So, J., Bello, M., & Moran, J. (2021). Mixed Small Cell and Large Cell Neuroendocrine Carcinoma of the Endometrium: A Case Report and Literature Review. PJP, 6(1), 43–49. https://doi.org/10.21141/PJP.2021.05