BACKGROUND Dengue fever (DF) is a viral haemorrhagic fever causing severe morbidity and mortality in affected patients. The aim of the study is to describe the role of ultrasonography (USG) in the assessment of patients with Dengue fever, and its complications and to prove ultrasound is useful in the diagnosis during an epidemic. MATERIALS AND METHODS It is a prospective study was conducted in 2016 comprising of 178 patients who were serologically positive for dengue, radiological

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... were conducted in all cases. RESULTS Out of 178 patients Males (N=117) are more effected subjects in the study. female: Male ratio is 1:2. Hepatomegaly 74.1% which is most common findings in study, 113 (63.4%) had GB wall thickening 98 had ascites (55%), 32 had pleural effusion (17.9%). most commonly seen in the age group of 20-39 years. Hepatomegaly was the most common finding noted in 67 patients (37.6%), followed by GB wall thickening in 65 patients (36.1%). Hepatomegaly was more common in 0-19 is 56 patients with 31.4% years age group Ascites in >40 years age group (16.8%). Hepatomegaly was seen in most of the patients whose platelet count was <40,000. (94.7%). GB wall thickening (88.5%) common findings seen in patients whose platelet count was <40,000. In patients with platelet count of 40,000-80,000, Ascites is most common finding (87.5%), followed by Splenomegaly (60.7%). In patients whose platelet count was 80,000-150,000, Ascites (50%) was more common than Splenomegaly (45.8%). In three patients with platelet count more than 150,000, no sonological abnormality was detected. CONCLUSIONS Ultrasound findings of hepatic changes, GB wall oedema, splenomegaly, ascites and pleural effusion in patients presenting with signs and symptoms of Dengue fever during an epidemic are diagnostic. Contributing in the differential diagnosis with other causes of febrile disease.