• Boubacar Efared, Halidou Hamadou Koura, Aïchatou Balaraba Abani Bako, Idrissa Boubacar, Habiba Salifou Boureima, Garba Mahamadou, and Hassan Nouhou.
• Faculté des Sciences de la Santé, Université Abdou Moumouni, Niamey, Niger.
• Medicine (Baltimore). 2024 Oct 4; 103 (40): e39773e39773.

RationaleUterine carcinosarcomas (UCS) are rare aggressive biphasic tumors classified as a subtype of high-grade uterine carcinomas. However, these tumors have particular histopathological features and clinical behavior with worse prognosis than high-grade uterine carcinomas.Patient ConcernsThe incidence of UCS is increasing and more studies are required to elucidate their clinical and histopathological characteristics. Herein, we report clinicopathological features of 9 cases of UCS in a low-income country.DiagnosesWe retrospectively collected all cases of UCS at our Pathology Department over a period of 4 years. The diagnosis was performed on formalin-fixed, paraffin-embedded and hematoxylin and eosin-stained surgical specimens.InterventionsNine surgically treated cases of UCS have been registered, representing 12.67% of all uterine malignancies with a mean age of 58.88 years (range: 50-65 years). Abdominal pain and metrorrhagia were the main clinical presentations. The epithelial component of UCS was often a serous carcinoma (66.66%) and patients presented with large tumors (mean size of 9.24 cm, range of 5-19 cm), with advanced FIGO stages (stages III-IV) in 5/9 patients (55.55%).OutcomesFollow-up data were available in 5/9 patients among which only 2 were alive 2 and 25 months after the surgical treatment (overall survival of 40%).LessonsUCS are rare and aggressive uterine tumors with very poor prognosis especially in low-income countries.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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