Incidental splenic littoral cell angioma complicating a case of Rolon cancer: A case report.

Littoral cell angioma (LCA) is a recently described rare generally benign primary vascular neoplasm of the spleen originating from the lining cells of the splenic red pulp sinuses that is usually discovered incidentally. LCA may be associated with epithelial malignancies and may itself also have malignant potential. We report the case of a 71-year-old woman who presented with intraoperative bleeding from the spleen during sigmoidectomy for colonic adenocarcinoma. Histopathological examination of the removed spleen revealed multiple haemorrhagic lesions diagnosed as littoral cell angioma. This case has been reported due to its rarity and to highlight how its accidental detection, unique and unexpected presentation complicated a case of colonic carcinoma. Individuals diagnosed with this tumour must be carefully evaluated to exclude primary, secondary and synchronous malignancies.