Abstract
OBJECTIVE: To summarize the clinical features, imaging characteristics, and surgical diagnosis and treatment experience of mediastinal extramedullary hematopoiesis. METHODS: By summarizing and analyzing the case data and reviewing the literature, one case of posterior mediastinal extramedullary hematopoiesis on thoracoscopic biopsy in our department was summarized. CONCLUSION: Posterior mediastinal extramedullary hematopoiesis is a response to failure of bone marrow erythropoiesis, which is relatively rare clinically, and diagnosis requires a combination of patient history and imaging, puncture biopsy or thoracoscopic excisional biopsy can provide a pathological diagnosis, and surgical complete resection is the main treatment modality.