This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: AML & ALL, Subject name: Medicine
Gum hyperophy is seen in which type of AML? 
Select and explain. 
A. Myelogenous leukaemia, B. Myelomonocytic leukaemia, C. Megakaryocytic leukaemia, D. Erythroleukemia
B: Myelomonocytic leukaemia
Answer: B: Myelomonocytic leukaemia 
Explanation: Infiltration of the gingivae, skin, soft tissues, or the meninges with leukemic blasts at diagnosis is characteristic of the monocytic subtypes (M4 and M5). Significant gastrointestinal bleeding, intra-pulmonary hemorrhage, or intracranial hemorrhage occur in M3 AML. Bleeding associated with coagulopathies occur in M5 AML.