Bilateral Multiple Pulmonary Sclerosing Pneumocytomain A Young Male: Case Report

Abstract

\n Background: Pulmonary sclerosing pneumocytoma (PSP) is a relatively rare benign tumor, and multiple pulmonary sclerosing pneumocytomas are even rarer. PSP is usually seen in adults over 50 years old, featuring a female to male ratio of 5:1. We report an extremely rare case of a 20-year-old male patient with bilateral multiple pulmonary sclerosing pneumocytoma. This rare benign disease also presents diagnostic challenges throughout the treatment process.Case presentation: A 20-year-old male was diagnosed with bilateral multiple pulmonary nodules on chest CT. The patient underwent regular chest CT reexamination over the course of six months, which indicated a tendency of slow enlargement of pulmonary nodules. After complete examination and exclusion of tumors in other parts of the body, he underwent two separate surgeries, and bilateral multiple nodules were removed. Intraoperative frozen section analysis suggested that some nodules were adenocarcinoma and the remaining nodules were considered benign tumors. Postoperative immunohistochemistry indicated that all nodules were pulmonary sclerosing pneumocytomas. Conclusions: Bilateral multiple pulmonary sclerosing pneumocytoma are rare in young men. In clinical practice, the differentiation of this disease from malignancy is challenging, and surgical treatment is a safe option for pulmonary nodules with a tendency to become larger.