A Case of Persistent Headache Leading to Diagnosis of Lung Adenocarcinoma: An Atypical Presentation

Abstract

Lung adenocarcinoma is a primary type of lung cancer and is classified as a non small cell lung carcinoma. Headache is a rare presentation of lung carcinoma. This case report found that early diagnosis and proper treatment can improve disease outcomes. The case describes a 36-year-old woman presenting with a persistent left-sided headache and non radiating pain. Despite normal vital signs and laboratory results, an Magnetic Resonance Imaging (MRI) revealed multifocal abnormalities in the brain, suggesting neoplastic metastasis. Further investigations, including Computed Tomography (CT) scans and Positron Emission Tomography-Computed Tomography PET-CT scans, confirmed lung adenocarcinoma with metastases to the brain, bone, and liver. Histopathology revealed an invasive, moderately-differentiated adenocarcinoma. The patient was recommended palliative radiation therapy, and after compliance with treatment, she was discharged. The present case underscores the importance of thorough diagnostic evaluation in unexplained symptoms, leading to the identification of advanced-stage lung adenocarcinoma with multiple metastases.

Keywords

• early diagnosis
• magnetic resonance imaging
• metastasis