Diaphragmatic mesothelial cysts are rare benign congenital lesions involving the diaphragm. They are thought to derive from from coelomic remnants.
They typically present in the pediatric population.
Typically right sided and seen as a cystic mass between the thoracic wall and the liver, in the right posterolateral costophrenic angle 3. Many tend to be thin-walled bilobulated or oval-shaped. Some lesions can show subtle evidence of their extrahepatic location.
May play a role in confirming its cystic nature in some cases 4.
For a smaller more inferior cystic lesions
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- 2. Kahriman G, Ozcan N, Dogan S, Bayram A. Imaging findings and management of diaphragmatic mesothelial cysts in children. (2016) Pediatric radiology. 46 (11): 1546-51. doi:10.1007/s00247-016-3658-z - Pubmed
- 3. Esparza Estaún J, González Alfageme A, Sáenz Bañuelos J. Radiological appearance of diaphragmatic mesothelial cysts. (2003) Pediatric radiology. 33 (12): 855-8. doi:10.1007/s00247-003-1014-6 - Pubmed
- 4. Jackson JI, Lim A. Report of an incidental finding of a congenital intradiaphragmatic cyst in an adult and a critical review of the literature. (2019) Radiology case reports. 14 (5): 618-622. doi:10.1016/j.radcr.2019.02.017 - Pubmed