A ground-glass opacity increasing in size over eight years diagnosed as lung adenocarcinoma: A case report

Small pulmonary nodules (SPN) have become an increasingly important clinical issue over recent years given the increase in lung cancer worldwide and the increased discovery of nodules, as more patients are willing to undergo check-ups. There are many different causes of SPN, including precancerous lesions, tumor, inflammation, trauma, and vasculitis. SPN are divided into three types: pure GGO, hybrid GGO, and solid nodules; each type has unique clinical and epidemiological characteristics as well as different prognoses, prompting debate among pulmonary clinicians as to management.