KRT20 and gallbladder carcinoma: Documentation of unusual metastatic sites is essential for enhancing clinical awareness and knowledge within the medical community. This case further highlights the critical importance of immunohistochemical markers such as CK7, CK20, and CEA for establishing the diagnosis of cutaneous metastasis in patients of gallbladder carcinoma. Such unusual presentations should prompt physicians to maintain a broad differential diagnosis, including cutaneous metastasis, as early recognition is essential for timely intervention in these cases.