This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
Littoral cell angioma is: 
Select and explain. 
A. Tumor of spleen, B. Angiomatous lesion of skin, C. Angioblastic tumor of Cerebellum, D. Congenital vascular anomaly at base of brain
A: Tumor of spleen
Answer: A: Tumor of spleen 
Explanation: Littoral cell angioma
• Is a benign, vascular tumor of spleen presenting as spleenomegaly
• It may be associated with other malignancies and has malignant potential itself
• The tumor arises from the littoral cells in the splenic red pulp sinuses. Littoral cell angioma affects both men and
Women equally with no specific age predilection
• It is usually asymptomatic and is discovered incidentally
• Some of the patients with this entity may present with symptoms of hypersplenism such as anemia,
thrombocytopenia, and splenomegaly, the latter seen in almost all patients with littoral cell angioma