Undifferentiated and Dedifferentiated Melanoma of the Genitourinary Tract: A Case Series Demonstrating the Potential for Diagnostic Pitfalls
International Journal of Surgical Pathology
Published online on July 22, 2026
Abstract
International Journal of Surgical Pathology, Ahead of Print.
Undifferentiated/dedifferentiated melanomas typically lack all conventional melanocytic biomarkers and closely mimic non-melanocytic malignancies, risking misclassification and missed melanoma-directed therapy. We report four metastatic undifferentiated/...
Undifferentiated/dedifferentiated melanomas typically lack all conventional melanocytic biomarkers and closely mimic non-melanocytic malignancies, risking misclassification and missed melanoma-directed therapy. We report four metastatic undifferentiated/...