Solitary lower limb cutaneous metastasis in a case of esophageal adenocarcinoma: a rare presentation

Esophageal cancer is the ninth most common cancer all over the world and is sixth in the list of cancer-related mortality. Here in this report, we present an elderly male with solitary subcutaneous metastasis to right thigh 2 years following esophagectomy for esophageal adenocarcinoma. Operative notes revealed inadequate margins on frozen section analysis during initial resection, which were subsequently revised. Postoperative histopathology showed ypT3N0M0 Grade 3 mucin-secreting adenocarcinoma. A wedge biopsy from the thigh growth revealed metastatic mucinous adenocarcinoma. Positron Emission Tomography (PET) was done, which showed a higher tracer uptake in the ulcero-proliferative lesion arising from the subcutaneous plane in the right thigh with no evidence of any other metastasis or recurrence at the primary site. As the reported incidence of distant unexpected metastases is growing, careful physical examination with a preoperative PET-CT is indispensable. Further knowledge on options on treatment of such isolated cutaneous metastasis needs to be studied by the scientific community.