[Portal thrombosis after splenectomy: hemodynamic analysis of two cases using an ultrasonic duplex system].
D006801:Humans; D006975:Hypertension, Portal / Q000601:surgery*; D008103:Liver Cirrhosis / Q000150:complications; D008297:Male; D008875:Middle Aged; D011169:Portal Vein; D011183:Postoperative Complications / Q000209:etiology*; D012039:Regional Blood Flow; D013156:Splenectomy; D013927:Thrombosis / Q000209:etiology*