Gale B, Chen C, Chun K J, Lan J, Cynamon J, Freeman L M
Department of Nuclear Medicine and Radiology, Montefiore Medical Center, Bronx, New York 10467.
Clin Nucl Med. 1990 Apr;15(4):246-50. doi: 10.1097/00003072-199004000-00008.
Obstruction of the superior vena cava is commonly associated with the development of several collateral venous pathways. Right-to-left systemic to pulmonary venous shunting, however, rarely has been reported. This paper describes a case in which a previously unsuspected shunt, manifested by the striking visualization of myocardial and thyroid tissue in addition to other findings, was discovered on a routine lung perfusion scan. Imaging, as well as radiologic studies are presented in the investigation of this phenomenon.
上腔静脉阻塞通常与多条侧支静脉通路的形成有关。然而，从右向左的体循环至肺静脉分流却鲜有报道。本文描述了一例病例，在常规肺灌注扫描中发现了一个此前未被怀疑的分流，除其他表现外，心肌和甲状腺组织的显影尤为显著。本文展示了针对这一现象的影像学及放射学研究。
