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Abstract Osteochondroma rarely occurs in the ribs; therefore, the treatment is not standardized. There are few studies of resection via complete thoracoscopic surgery (CTS), although video‐assisted thoracoscopic surgery with mini‐thoracotomy has been reported. Herein, we report a case of costal osteochondroma managed with CTS. A 23‐year‐old woman presented to our hospital due to left chest pain. Chest computed tomography revealed a bone‐like structure protruding into the thoracic cavity from the left fourth rib. Thus, surgery was performed to obtain a definitive diagnosis and provide appropriate treatment. The tumor was resected from the base at the border of the normal bone via CTS using three 5.5‐mm ports. A pathological diagnosis of costal osteochondroma was made. The patient had an uneventful clinical course and did not present with a recurrence 1 year after surgery. Therefore, CTS can be a good approach for cases with slim and stalked costal osteochondroma.
Fujita et al. (Mon,) studied this question.