Surgical Case Reports
Online ISSN : 2198-7793
Case Report
Extra-Lobar Lung Sequestration Infarction That Caused Sudden Back Pain: An Adult Case of Surgical Resection
Noriyoshi Sawabata Isao AraiHisanori HatanoTakashi ItoYuko FukumotoTakayuki MinojiKotaro MuranishiTakahiko NishigakiKen KonishiKazuyuki MatsushitaKazunori NakaguchiSadayuki DoiKeishi Sugimoto
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2025 Volume 11 Issue 1 Article ID: cr.24-0032

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Abstract

INTRODUCTION: Ischemia in extra-lobar pulmonary sequestration is rare and mostly occurs in childhood; it is uncommon in adults but can be progressive, necessitating surgical removal.

CASE PRESENTATION: A 37-year-old woman experienced sudden onset severe back pain and was initially diagnosed with pneumonia. Computed tomography revealed a 4.5 cm mass on the diaphragm and rapidly increasing pleural effusion. Emergency surgery confirmed a black mass that adhered to the diaphragm, which could be bluntly detached, but one was fixed in a cord shape that was detached by an energy device. Pathology showed significant hemorrhage and tissue destruction in extra-lobar pulmonary sequestration.

CONCLUSIONS: Extra-lobar pulmonary sequestration infarction, which develops suddenly with pain as the main complaint, is rare and mainly seen in early childhood but can also occur in adults.

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© 2025 The Author(s). Published by Japan Surgical Society
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