Clinical question: Lung cancer. Need adequate staging. Signs and symptoms: None Enhanced head CT: 100 cc of Omnipaque 350 is administered for this exam.Examination demonstrates a small extra-axial enhancing mass along the inner table of the skull in the left frontal region measuring 10 mm in length and 5.4-mm in thickness. This finding is best appreciated on axial image 20 of series 4 and coronal reformatted image 61 on series 80328. There is no associated mass effect on the parenchyma by this lesion and there is no detectable edema of brain parenchyma. There is also no evidence of any associated bony changes with this finding. This finding is believed to represent a meningioma. Recommend follow-up with an MRI exam to entirely exclude a very remote possibility of metastatic lesion.There is no detectable parenchymal enhancement or enhancement of the leptomeninges to suggest metastatic disease. The cortical sulci, ventricular system, CSF cisterns and gray -- white matter differentiation remains within normal.Calvarium is intact. Limited view of paranasal sinuses, mastoid air cells and middle ear cavities are unremarkable. Limited images through the orbits are unremarkable.
1.Small extra-axial dural based enhancing mass measuring 10 times 5.4-mm in height suspect for a small meningioma. To entirely exclude the remote possibility of metastatic disease recommend a follow with an enhanced MRI examination.2.Negative enhanced CT of brain and calvarium otherwise. 