The prevention and treatment of lung nodules involves many fields in preventive medicine and
clinical medicine. A nodule is a growth or lump that may be malignant (cancer) or benign (not
cancer). This study is aim to investigate the chemopreventive effect of limonene in
inhibiting the occurrence/progression of ground glass pulmonary nodules. It is expected that
limonene can be used as a safe and effective chemopreventive agent for preventing the
development/progress of pulmonary nodules as well as expanding the indications of limonene.