i am a resident of internal medicine, we have patient 67yrs old, known DM with complications admitted with SBP his asitic tap was haemorragic but liver enzymes initially were normal, later raised , hepa viral screening negaitive, tumour markers are negagtive,cultures negative,AFB negative..he is on dialysis almost every other day... on USG abd and pelvis no mass? what could be the cause of diagnosis ? what else we can do for him?