Massive splenomegaly is least likely to occur in
Thrombocytosis is defined as a platelet count greater than 400 x 109/L. ... The presence of chronic thrombocytosis, thrombohemorrhagic complications, microvascular symptoms, or splenomegaly ors the diagnosis of primary thrombocytosis. Spleenomegaly is least likely to occur. Ref ganong's review of medical physiology 25e
CML
Primary thrombocytosis
PCV
Primary myelofibrosis
All India exam