Simple bone cyst: Evaluation of contents with conventional radiography and computed tomography |
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| Affiliation: | 1. National Research Center "Kurchatov Institute", 1st Akademika Kurchatova Square, 123182 Moscow, Russia;2. Russian State University for the Humanities, 6th Miusskaya Square, 125993 Moscow, Russia;3. Department of Psychology, Technische Universitaet Dresden, 01069 Dresden, Germany;4. Faculty of Biosciences and Aquaculture, Nord University, PB 1490. 8049 Bodø, Norway;5. Alekseyev Psychiatric Hospital No. 1, Zagorodnoye Highway, 2, 115191 Moscow, Russia;6. New York University School of Medicine, 550 1st Avenue, New York, NY 10016, USA;7. Skolkovo Institute of Science and Technology, Bolshoy B-d 30/1, 121205 Moscow, Russia;8. Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky prospect 33/2, 119071 Moscow, Russia;9. National Research Nuclear University «MEPhI», Kashirskoye Highway, 31, 115409 Moscow, Russia |
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| Abstract: | To evaluate whether gas is present in the cavity of simple bone cysts, the clinical and histologic findings of 53 patients with simple bone cysts were examined and compared with an experimental model. The model consisted of a dry mandible with the medullary bone removed and the resulting cavity injected with water. Although an air-liquid level was observed on all radiographs for the experimental model, none was observed in the clinical cases of simple bone cysts. When the experimental cavity was completely filled with water, the density in the cavity was similar to that of the surrounding water on computed tomography, but when it was filled with air, the density was lower than that of the surrounding water. In contrast, in simple bone cysts said to contain air at surgery, the cavity contents were not consistent with the density for gas on computed tomography. These results indicate that the operative finding of air in the cavity of simple bone cysts may have been in error at least in some cases. |
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