Emergency surgery for intestinal obstruction caused by gastrointestinal metastasis of malignant melanoma: a case report. - Zertuche, Daniel Lopez; Ferreyra, Jessica J Betancourt; Lopez, Aranza J Sanchez; Hernandez, Miren L Cardenas; Hernandez, Maria Estrada; Rodriguez, Milca N Deance; Regino, Laura M Hernandez (Journal of Surgical Case Reports, 2026)