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Updated: Jul 4, 2025

Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
Published on: June 16, 2020
Intralobar pulmonary sequestration presenting as multiple nodular pulmonary lesions and focal emphysema
Tadatsugu Yoshinaga1, Makiko Yomota1, Kazutoshi Toriyama1
1Department of Respiratory Medicine Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital Tokyo Japan.
Abstract:
The features of intralobar pulmonary sequestration vary on computed tomography (CT). Many cases demonstrate a mass or cystic lesion within a lower lobe. We report herein a case of a 55-year-old, female patient presenting with right back pain. Contrast enhanced (CE) CT revealed multiple, nodular, pulmonary lesions suggesting recurrent infections with surrounding focal emphysema. Three-dimensional (3D) reconstruction demonstrated a sequestrated lung segment with a systemic, arterial blood supply. Based on these findings, intralobar pulmonary sequestration was diagnosed. Intralobar pulmonary sequestration can present as multiple, nodular, pulmonary lesions with focal emphysema rather than as a mass or cyst. CE-CT with 3D reconstruction is useful for diagnosing this condition. Patients with recurrent pulmonary infections have a high index of suspicion of intralobar pulmonary sequestration.
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