You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is A patient presented with splenomegaly, anemia & shows reticulocytosis with increased bone marrow cellularity. The diagnosis is: and explain in detail?
Hemolytic anemia - reticulocytosis with splenomegaly is seen. Skull and skeletal deformities can occur in childhood due to a marked increase in hematopoiesis and resultant bone marrow expansion