Portal Hypertension, Noncirrhotic, 2, also known as ncph2, is related to portal hypertension. An important gene associated with Portal Hypertension, Noncirrhotic, 2 is GIMAP5 (GTPase, IMAP Family Member 5). Affiliated tissues include liver and endothelial, and related phenotypes are splenomegaly and thrombocytopenia