ISSN: 2576-1447
+44 1478 350008
Department of Pathology and Laboratory Medicine, Henry Ford Health System, Detroit, MI, USA
Case Report
Medullary Carcinoma of Colon: Pathologists Dilemma
Author(s): Kasturi Saikia*, Ejas Palathingal Bava and Qing Chang
Medullary carcinoma of the colon is a rare tumor that has a unique and sometimes varied histologic profile, including a solid architecture with poor glandular differentiation, undifferentiated cellular morphology, an aberrant immunophenotype, and DNA microsatellite instability. Patients with medullary carcinoma have a better prognosis than those with other colon malignancies, but this rare tumor is often misdiagnosed. Here we report the case of a 77- year-old woman who presented with gastrointestinal bleeding and a 1-year history of anemia. A right-sided cecal mass was shown to harbor a tumor that had not spread to the lymph nodes. Interestingly, her tumor was positive for expression of Caudal-type homeobox transcription factor 2 (CDX2) and negative for the Keratin 20, which is unusual for this entity. However, overall cellular morphology and DNA microsatellite instability indicated b.. View More»
DOI:
10.35248/2576-1447.23.8.532