RESUMO
Dedifferentiated endometrioid carcinoma (DEC) is an exceptionally rare subtype of endometrial cancer characterized by a high-grade component juxtaposed with a low-grade endometrioid adenocarcinoma. This case report presents a unique instance of dedifferentiated endometrioid carcinoma in a 64-year-old female patient who presented with post-menopausal bleeding and abdominal pain. Diagnostic evaluation including imaging studies and histopathological examination revealed a mixed tumor comprising both high-grade and low-grade components. Management involved a multidisciplinary approach including surgical resection followed by adjuvant chemotherapy and radiation therapy. They are frequently mislabeled as endometrioid carcinomas of International Federation of Gynecology and Obstetrics (FIGO) Grade 2 or Grade 3. It is crucial to correctly differentiate these instances from traditional endometrioid carcinomas. This case underscores the importance of early recognition and comprehensive management strategies tailored to the unique characteristics of dedifferentiated endometrioid carcinoma. We report this case due to its rarity and complexity in diagnosis.
RESUMO
A sarcomatoid variant of urothelial carcinoma (SVUC) is an extremely rare variant, which accounts for only 0.1-0.3% of all urothelial carcinomas of the bladder. SVUC is distinguished by the presence of biphasic components; there can be morphological and/or immunohistochemical substantiation of epithelial and mesenchymal differentiation. The patients with this variant have been associated with very poor disease-specific and overall survival rates in comparison with the high-grade pure urothelial carcinoma. Being a rare entity, it usually presents at a higher grade and is related to a dismal prognosis in comparison with conventional urothelial carcinoma. Careful examination, early diagnosis, and effective treatment are the most important steps for good survival. Here, we report a 58-year-old male who presented with complaints of hematuria for one and a half months with histopathology showing features of SVUC.
