Magnetic Resonance Imaging Manifestations of Brain Metastases in Patients with Lung Cancer

Objective: Using magnetic resonance imaging (MRI), the clinical and imaging characteristics of brain metastases from lung cancer were analyzed to improve the early diagnosis rate. Computed tomography (CT) was used to confirm the existence of lung lesions. Methods: The clinical and imaging data of 17 lung cancer brain metastases first diagnosed in neurology were retrospectively analyzed. Results: All patients were diagnosed with neurological symptoms. The main complaints were headache (n = 15), dizziness (n = 10), limb weakness or hemiplegia (n = 7), sensory disorders (n = 5), and mental and emotional disorders (n = 3), Vision loss (n = 1), and epilepsy (n = 1). Brain metastases was imaged using MRI, and primary lung lesions were indicated by chest CT. The primary lesions were confirmed by puncture biopsy or surgical pathology. 1 case of single metastases was diagnosed by surgery, 2 cases of single metastases, 15 cases of multiple cases, most common under the cortex, and most were accompanied by peritumoral edema, and 3 cases were cystic. In 2 cases with tumor stroke, the enhancement was most circular. Conclusions: Lung cancer and brain metastases first diagnosed in neurology are mostly neurological symptoms. Pulmonary symptoms and signs are often lacking or mild. It is easy to miss misdiagnosis based on clinical symptoms. Timely craniocerebral and chest imaging examinations help to accurately diagnose the condition presented in our study.