Pumice stone sign
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At the time the article was created Pradosh Kumar Sarangi had no recorded disclosures.View Pradosh Kumar Sarangi's current disclosures
At the time the article was last revised Hoe Han Guan had no financial relationships to ineligible companies to disclose.View Hoe Han Guan's current disclosures
The pumice stone sign is a recently described distinctive imaging appearance of emphysematous osteomyelitis on CT described as clusters of greater than 3 distinct foci of intramedullary gas with irregularly irregular sizes ranging between 2 and 5 mm with resemblance to surface appearance of pumice stone. This sign is seen in 96% of cases of emphysematous osteomyelitis.1, 2
According to one study 1, most (79%) cases of emphysematous osteomyelitis were not associated with cortical destruction of bone unlike traditional osteomyelitis. Hence this sign may help in early diagnosis and treatment of this life-threatening condition. Adjacent soft tissue emphysema (79%) is also a key imaging feature.
- 1. Small JE, Chea P, Shah N, Small KM. Diagnostic Features of Emphysematous Osteomyelitis. (2018) Current problems in diagnostic radiology. doi:10.1067/j.cpradiol.2018.05.008 - Pubmed
- 2. Chamsi Basha A, Khalifa MA, Albadr F, Kaid J, Alsakkaf H. Hip bone osteonecrosis with intraosseous pneumatosis after abdominal aortic aneurysm repair: a case of emphysematous osteomyelitis. (2021) BJR case reports. 7 (1): 20200138. doi:10.1259/bjrcr.20200138 - Pubmed