Williams A O, Enumah F I
Thorax. 1968 Mar;23(2):200-3. doi: 10.1136/thx.23.2.200.
Extralobar sequestration of pulmonary tissues is relatively rare and seldom produces symptoms. An incidental finding is described of extralobar sequestration of the lung in a Nigerian child, presenting as an anterior mediastinal polycystic mass. The mass was attached to the right pulmonary artery by a fibrovascular pedicle which contained a small elastic artery, veins, and nerve bundles. Sequestrated lobes are usually situated in the posterior basal lobes of the lungs and may be associated with other congenital abnormalities, but the case reported here differs in these respects. Death was due to enterocolitis unrelated to the congenital abnormality.
肺组织叶外型隔离症相对罕见，很少产生症状。本文描述了一名尼日利亚儿童的肺叶外型隔离症偶然发现的情况，表现为前纵隔多囊性肿块。该肿块通过一个纤维血管蒂与右肺动脉相连，纤维血管蒂内含有一条小的弹性动脉、静脉和神经束。隔离肺叶通常位于肺的后基底段，可能与其他先天性异常有关，但本文报道的病例在这些方面有所不同。死亡原因是与先天性异常无关的小肠结肠炎。
