Feist J H, Gajaraj A
Radiology. 1977 Nov;125(2):331-34. doi: 10.1148/125.2.331.
Extra- and intrasplenic arterial aneurysms have occasionally been encountered in cases of portal hypertension both with and without cirrhosis. The exact pathogenesis is speculative; however, it is postulated that hyperkinetic splenic circulation, probably related to hepatic arterial insufficiency or hypoplasia, constitutes the primary pathogenic mechanism. Other factors such as splenomegaly and hormonal influence may be contributory.
无论是伴有还是不伴有肝硬化的门静脉高压病例中，偶尔都会发现脾外和脾内动脉瘤。确切的发病机制尚属推测；然而，据推测，可能与肝动脉供血不足或发育不全有关的脾循环亢进，构成了主要的致病机制。其他因素，如脾肿大和激素影响，可能也有促成作用。
