19 years, Male, daily headaches, history of cranial radiation.. Per chart, history of rhabdomyosarcoma of the left temporal bone with cholesteatoma. There is artifact related to dental hardware which slightly limits evaluation of the anterior frontal/craniofacial region. Brain parenchyma however appears unremarkable with no intracranial mass or abnormal parenchymal or meningeal enhancement. No evidence of ischemia, hemorrhage, or other parenchymal signal abnormality. Ventricles and sulci appear within normal limits. Major flow-voids are preserved.There is diffuse opacification of the left mastoid air cells with partial left middle ear and mastoid opacification evident on prior temporal bone CT from 1/27/2010. There is thinning of the left-sided tegmen mastoideum which is better assessed with CT. There is extensive opacification of the right anterior and posterior ethmoid air cells. There is moderate mucosal thickening involving the maxillary sinuses and to a lesser degree sphenoid sinuses, right worse than left. Sella and orbits are grossly within normal limits. Remainder of the bone marrow signal and extracranial soft tissues are within normal limits.
1. Brain parenchyma appears within normal limits. Specifically, no evidence of intracranial mass or abnormal enhancement.2. Moderate degree of opacification of the paranasal sinuses, right worse than left as described above, compatible with sinusitis.3. Diffuse opacification of the left mastoid air cells, which appears slightly increased since CT temporal bone dated 1/27/2010. Finding is nonspecific, and dedicated temporal bone imaging can be considered if clinically indicated.