A 36 years old female patient present with fever with chills and huge lump in left hypochondriac region since 5 days. Fever was intermittent with chills  O/E GC-moderate Massive splenomegaly, severe pallor,icterus present, febrile, high grade fever. No hepatomegaly. No other abnormal swellings in body. No h/o bone pains Lab reports : Very high lymphocyte count. Lymphocytosis. Slight decrease in Granulocytes count.

Hemoglobin around 3-4 g%.Pallor present. No abdominal pain No past h/o diarrhoea Pulse and BP were within normal limits  Questions: - Widal positive? What's the diagnosis. What's the differential diagnosis  Which investigations should be advised  What's the cause of splenomegaly in this case , No Ascites  How to manage this case What is standard treatment here in this case. Please reply  Thanks all of us.