<prompt> NCPF is due to:-Extrahepatic obstructionIntrahepatic pre-sinusoidal obstructionIntrahepatic sinusoidal obstructionIntrahepatic post-sinusoidal obstruction  <response>: NON-CIRRHOTIC POAL FIBROSIS NCPF Characterized by widespread fibrosis of liver mainly poal, subcapsular and rarely perisinusoidal causing wide variation in normal architecture There is no true cirrhosis. Hallmark of diseases is Thrombosissclerosis of the poal vein branches. Poal and peripoal fibrosis of varying extent No bridging fibrosis. Ultrasound shows normal splenopoal axis. Withered tree appearance and peripoal fibrosis is seen in NCPF. 