Postoperative Metastasis of Malignant Melanoma of the Right Foot to the Gallbladder and Pancreas: Imaging Features.

Malignant melanoma exhibits high metastatic potential, yet metastasis to the gallbladder and pancreas is exceptionally rare. We report a 78-year-old male patient who developed epigastric discomfort 7 months after undergoing amputation for right-foot malignant melanoma. Imaging studies revealed space-occupying lesions in the gallbladder and pancreatic head, which were pathologically confirmed as melanoma metastases. This case underscores the importance of maintaining vigilance for metastases to unusual anatomical sites in melanoma patients presenting with gastrointestinal symptoms, and highlights the diagnostic value of multimodal imaging approaches in such scenarios.