Rescue with echoendoscopy-guided cholecystogastrostomy in a patient with rectal melanoma metastasis. A diagnostic and therapeutic challenge.

We present the case of a 70-year-old woman with a history of transanal resection of rectal melanoma who presented with obstructive jaundice. She underwent complementary tests and was diagnosed with metastasis of melanoma at ampullary level. We consider this to be an interesting case given its unusual nature, as well as its difficult diagnostic and therapeutic management.