Well-circumscribed type of intramuscular lipoma in the chest wall.
Bottom Line: Thoracoscopic surgery was performed to resect the tumor.From the histological findings, the tumor was diagnosed as an intramuscular lipoma.The patient displayed no evidence of recurrence for more than 18 months.
A tumor shadow was identified in the chest X-ray of a 40-year-old Korean man and he was referred to our hospital. The computed tomographic (CT) scan of his chest showed a 3-cm rounded pleural-based mass lesion with calcification, which was growing into the intercostal muscles. Thoracoscopic surgery was performed to resect the tumor. From the histological findings, the tumor was diagnosed as an intramuscular lipoma. The patient displayed no evidence of recurrence for more than 18 months. As well-circumscribed type of intramuscular lipoma is a rare tumor, we report this case with a literature review in this paper.
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Mentions: A 40-year-old Korean man presented with a pulmonary nodule, which was detected by chest radiographs, and visited our hospital. He did not show any subjective symptoms. A 3-cm round mass lesion in the right upper lung field was seen in his chest X-ray (Figure 1), and the computed tomographic (CT) scan of his chest showed a 3.8 × 2.5 cm sized predominantly fatty mass with areas of calcification (Figure 2). The tumor was found to be lying in the right fifth intercostal space, which was well encapsulated but growing into intercostal muscles, and was resected completely by thoracoscopic surgery (Figure 3). Histopathological examination of the tumor confirmed it to be an intramuscular lipoma with chondroid metaplasia (Figure 4). Postoperative course of the patient was uneventful and he was discharged from the hospital on the fifth postoperative day. There was no evidence of recurrence for more than 18 months seen in the patient.