Advocate of 32 years, treated at corporate hospital for 20 days. All kind of antibiotics in massive doses given from day first. All blood tests CBC WIDAL urine and urinr  c/s done twice with out relief. From last ten days again CBC urine MP MT 2D-Echo of Heart, urea s creatinine RFT LFT and found normal. XRAY chest p a view ---- RT para cardiac area shows homogeneous opecity along rt  cardiac border AND multiple doubtful Lymph Nodes shadow in Lt axillary  soft tissue and ?

On rt side too . MT negetive ESR rose to 71mm  all other tests-found  negative I stopped all medication for two days then test were done  Now pt is on feropanum 200 mg bid and  clathromycin 500 mg bid, today is third day, fever and stiffness is continue. I am thinking of HRCT of chest, any thing else can be advised  for diagnosis   What could be the diagnosis?