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: Medicine
Splenectomy is contraindicated in which of the following haemolytic anemia: 
Select and explain. 
A. Stomatocytosis, B. Elliptocytosis, C. Sickle cell disease, D. All of the above
A: Stomatocytosis
Answer: A: Stomatocytosis 
Explanation: Stomatocytosis: This rare condition with autosomal dominant inheritance draws its name (mouth-like cells) from the fact that the normally round-shaped central pallor of red cells is replaced by a linear-shaped central pallor. Hemolysis is usually relatively mild. Splenectomy is contraindicated as it has been followed in a majority of cases by severe thromboembolic complications. Ref: Harrison's principle of internal medicine 17th Edition, Chapter 101.