Status post craniotomy for tumor resection. Assess extent of resection. History of rectal carcinoid cancer in 2011 and breast cancer in 2009. No relevant preoperative imaging studies are available for comparison.There is a 3 cm in diameter resection cavity in the left frontal lobe (middle frontal gyrus) with expected blood products in the cavity and along the resection margin. There are small foci of diffusion restriction along the medial and inferior lateral surgical margins which may reflect postoperative change. There is minimal contrast enhancement along the surgical margin, especially superiorly, which may reflect postoperative change as well. There is minimal T2-hyperintensity surrounding the surgical cavity and no significant mass-effect. There is no midline shift. The ventricles are normal in size. There is minimal extra-axial fluid and dural thickening underlying the left frontal craniotomy flap.While there is no other contrast-enhancing brain lesion, there are tiny foci of diffusion restriction involving the right cerebellar hemisphere correlating with T1 hypointense, T2-hyperintense signal reflecting small acute/subacute infarcts. There is nonspecific ethmoid mucosal thickening and maxillary small retention cyst. The eye globes are elongated anteroposteriorly, which can be associated with severe myopia.
1.The patient is status post recent left middle frontal gyrus surgery for removal of the lesion. No preoperative exams to compare with. There are postoperative changes within the surgical cavity and adjacent to it include intracranial air and scalp soft tissue swelling suggesting this is recent surgery. Please correlate with the surgical findings.2.Small foci of diffusion restriction in the right cerebellar hemisphere represent acute/subacute microinfarcts3.No other contrast-enhancing brain lesion.