1. L pleural effusion: resolves spontaneously 2. Infected pancreatic necrosis: Requires surgery 3. Pseudocyst 10% or cases: May take 4 wk to develop. < 5 cm resolves spontaneously. If larger or persists > 6mo need surgical drainage. 4. Abcess: Need CT percutaneous aspiration 6. Splenic vein thrombosis with gastric varies.