CTICasesBronchogenic Cyst
Imaging findings
CT shows a well-defined posterior mediastinal mass with central soft-tissue attenuation and peripheral vascularity/feeding vessels. Pathological examination confirms the mass is lined by respiratory epithelium and contains cartilage, characteristic of a bronchogenic cyst, despite its atypical posterior mediastinal location.
Key takeaways
Bronchogenic cysts are congenital foregut duplication cysts. While most commonly subcarinal or paratracheal, they can rarely present in the posterior mediastinum. Cartilage within the wall is a diagnostic hallmark of a bronchogenic cyst and should not be misattributed to a teratoma when located in atypical compartments.
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