A synchronous presentation of pulmonary lesions of Langerhans cell sarcoma (LCS) and Langerhans cell histiocytosis (LCH) is extremely rare. We report the case of a 57-year-old man with 3 pulmonary nodules, 1 in the left lung and 2 in the right lung. In a 2-stage operation, he first underwent a left segmentectomy, and the nodule was diagnosed as LCS. Thereafter, 1 of the 2 right pulmonary nodules disappeared. The residual nodule was resected by right segmentectomy and was diagnosed as LCH. This is a report of complete resection of localized, synchronous pulmonary lesions of LCS and LCH.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11708620PMC
http://dx.doi.org/10.1016/j.atssr.2022.12.002DOI Listing

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