Orbital rhabdomyosarcoma presenting as an apparent orbital subperiosteal abscess |
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Authors: | Seedat R Y Hamilton P D de Jager L P Strydom W Beukes C A |
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Institution: | Department of Otorhinolaryngology, Faculty of Health Sciences, University of the Orange Free State, PO Box 339, Bloemfontein, South Africa. gnolrs@med.uovs.ac.za |
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Abstract: | We present a patient with acute sinusitis whose CT scan showed a ring-enhancing lesion within the orbit typical of an orbital subperiosteal abscess. On exploration of the orbit, there was no pus present but a tumour was found, which on histological examination was found to be a rhabdomyosarcoma. The clinical signs and CT characteristics of orbital subperiosteal abscesses and rhabdomyosarcomas are discussed. A ring-enhancing lesion within the orbit on CT scan should not be regarded as being pathognomonic for a subperiosteal abscess and the possibility of other diagnoses should be considered. |
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