TY - JOUR AB - The present study aimed to investigate the clinical characteristics of diffuse pulmonary lymphangioma (DPL) in children to improve the diagnosis and treatment of this disease. A case of pediatric DPL was observed for its clinical symptoms, imaging features, lung biopsy pathological characteristics and immunohistochemical phenotypes, and relevant literature was also reviewed. The main clinical manifestations of this pediatric patient were a cough, shortness of breath, hemoptysis, bloody chylothorax and pericardial effusion. Chest computed tomography showed a grid‑like shadow and markedly thickened interlobular septa. Pathological examination revealed lymphatic vessel hyperplasia and expansion. Immunohistochemistry showed positive staining of lymphatic endothelial cells CD31 and D2‑40. The patient's condition improved after combined treatment with methylprednisone, propranolol, sirolimus and somatostatin, whose bloody chylothorax also achieved good therapeutic effect after conservative treatment. Overall, the clinical and imaging appearances of DPL are lack of characterization, and its clinical manifestations include cough, shortness of breath and chylothorax. Computed tomography may show mesh‑like shadows of both lungs and thickened interlobular septa. The definite diagnosis of DPL depends on biopsy pathology. In addition to this case, B‑ultrasound‑guided puncture biopsy is effective and safe, and propranolol‑sirolimus treatment has a certain effect, but the clinical effect may be different. Conservative treatment of pleural effusion can result in better curative effect. AD - Department of Pediatrics, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510120, P.R. China AU - Sun,Xiaopu AU - Lu,Chengyu AU - Huang,Zhanhang AU - Xu,Jiaxing AU - Zhu,Huiyi AU - Yang,Sen AU - Chen,Deihui DA - 2023/04/01 DO - 10.3892/etm.2023.11874 IS - 4 JO - Exp Ther Med KW - diffuse pulmonary lymphangiomatosis children diagnosis sirolimus oncology PY - 2023 SN - 1792-0981 1792-1015 SP - 175 ST - Diagnosis and treatment of diffuse pulmonary lymphangioma in children: A case report T2 - Experimental and Therapeutic Medicine TI - Diagnosis and treatment of diffuse pulmonary lymphangioma in children: A case report UR - https://doi.org/10.3892/etm.2023.11874 VL - 25 ER -