[Primary non-parasitic cyst of the diaphragm. Review of the literature. Apropos of a case].

The authors report a case of mesothelial cyst of the diaphragm, discovered on ultrasonography performed for pain in the right hypochondrium and treated by simple surgical excision. Based on a review of the literature, they define the topographical, histological and therapeutic aspects of these lesions, which are now recognised more frequently due to the progress in medical imaging.