Key clinical messageGallbladder (GB) neuroendocrine carcinoma (NEC) is rare and has poor prognosis. Furthermore, there is no consensus on treatment of GB-NEC.Here, we report a case of GB-NEC for which nivolumab was effective.Key word: Gallbladder NEC, immune checkpoint inhibitors, EUS-FNA

Although splenic tumors are relatively rare, we sometimes encounter incidentalomas in the spleen. In such cases, we must plan treatment based on imaging studies. Herein, we report two cases of splenic hemangioma with different imaging findings, which were resected laparoscopically.