Pulmonary Adenocarcinoma in a Non-Smoking Young Individual: A Diagnostic Challenge - Case Report

This is a case report highlighting the diagnostic complexity of pulmonary adenocarcinoma in a young, healthy, non-smoking patient. The study focuses on diagnostic hypotheses leading to the definitive diagnosis, addressing signs and symptoms, found in imaging exams such as chest radiography, computed tomography, and biopsy. The objective is to contribute to the medical literature by presenting relevant information on diagnostic hypotheses until reaching the definitive diagnosis of pulmonary adenocarcinoma, to stimulate future research and diagnostic reasoning, as well as raise awareness among healthcare professionals about early diagnosis to improve patient survival and enhance the quality of care.