hi. i would just like to ask for help re: an Internal Med case. this is a case of my dad, 85 years old, retired writer. he underwent TURP 10 years ago due to BPH. then he is diagnosed again with BPH. with symptoms of weight loss (>50% in 1 year); 3 weeks of anorexia; malaise, arthralgia, dysuria and hematuria. normal PSA. no dyspnea, no orthopnea, no abdominal pain. i would like to know the likely diagnosis. he seems too weak now.