TY - JOUR AU - Kayser, Klaus AU - Borkenfeld, Stephan AU - Kayser, Gian PY - 2015 TI - Extralobular Sequestration JF - Diagnostic Pathology; 2015 DO - 10.17629/www.diagnosticpathology.eu-2015-1:55 KW - Extralobular Sequestration, Pulmonary Hpertension, Tumorlet, Lingula, Lung, Resection, Atypical Adenomatiod Hyperplasia N2 - Lung sequestration is a radiological/clinical diagnosis displaying with a mass of lung parenchyma that is not connected to the tracheobronchial tree. Intralobular sequestration defines lung parenchyma that is covered by visceral pleura; extralobular sequestration defines lung parenchyma that lies outside the visceral pleura. We report the histological findings of a 71 years old women suffering from chronic cough, recurrent bronchopneumonias, and several radiological densities in the left lower lobe (lingula). A resection of the lingula was performed. The histological findings include focal active fibrosis and marked media hyperplasia and dislocalization of pulmonary arteries as well as a tumorlet of carcinoid type and focal adenomatous hyperplasia (AAH). Differential diagnosis: Pulmonary Hypertension, Venous occlusive disease, Congenital malformation UR - http://www.diagnosticpathology.eu/content/index.php/dpath/article/view/55