63-year-old male with history of squamous cell lung carcinoma. Evaluate for metastatic lesions. The bone marrow signal is diffusely heterogeneous without focal lesion. In the right parietal lobe there is a small area of encephalomalacia with adjacent edema extending to the lateral ventricle. There is no abnormal enhancement in this region. There are overlying soft tissue abnormalities demonstrating susceptibility and mild marginal enhancement, likely representing scarring from prior trauma or surgery. Additionally, there is a small area of T1 and T2 hypointense subgaleal thickening in the right superior parietal scalp, possibly representing a chronic subgaleal hematoma or fibrotic scarring. There are scattered foci of T2 hyperintensity within the periventricular and subcortical white matter which are nonspecific. There is no abnormal enhancement to suggest metastatic disease to the brain. The ventricular configuration is unremarkable. There is no evidence of ischemia. The basal cisterns are normal. There are small retention cysts within the right maxillary sinus. There is a small amount of fluid within the right sphenoid sinus. The mastoid air sows are clear. The orbits are unremarkable.
1.No evidence of metastatic disease in the brain.2.Heterogeneous bone marrow signal is nonspecific. Correlation with bone scan is recommended.3.Findings in the right parietal lobe and scalp may be postsurgical or post traumatic in etiology. Correlate with patient's clinical history.4.Scattered foci of white matter T2 hyperintensity likely represent chronic ischemic small vessel disease.