List causes of massive splenomegaly

1. Hematological disorders, such as chronic lymphocytic leukemia, Hodgkin's lymphoma, or myelofibrosis

2. Infectious diseases, such as malaria, viral hepatitis, or infectious mononucleosis
3. Cirrhosis of the liver
4. Metabolic disorders, such as Gaucher disease or Niemann-Pick disease
5. Autoimmune disorders, such as lupus or rheumatoid arthritis
6. Sarcoidosis
7. Amyloidosis
8. Hemophagocytic lymphohistiocytosis (HLH)
9. Portal hypertension
10. Splenic vein thrombosis.