Abstract.
The presence of intraosseous gas most commonly occurs in osteomyelitis, vacuum phenomenon, and postsurgery or posttraumatic states. Several cases of subchondral gas-filled lesions, called pneumatocysts, have also been described in the sacroiliac joint and clavicle, none of them with intralesional air–fluid level. These pneumatocysts are innocuous lesions of uncertain origin. We describe one case of acetabular pneumatocyst containing air–fluid level in a 62-year-old man with long-standing ankylosing spondylitis involving hip joint. To our knowledge, this is the first reported case of a pneumatocyst in an acetabular location containing air–fluid level.
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Received: 15 June 1998; Revision received: 4 November 1998; Accepted: 11 December 1998
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Narváez, J., Narváez, J., Rodríguez-Mijarro, M. et al. Acetabular pneumatocyst containing air–fluid level. Eur Radiol 9, 1647–1649 (1999). https://doi.org/10.1007/s003300050902
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DOI: https://doi.org/10.1007/s003300050902