CONCLUSION
Overall, this case underscores that cavitary lung lesions may serve as a significant clinical manifestation in gallbladder cancer, potentially indicating the presence of pulmonary metastasis. These manifestations, although their mechanisms are not yet fully understood, may provide valuable insights for the early diagnosis and treatment of gallbladder cancer. Moreover, the criticality of a multidisciplinary team in the diagnosis and management of such diseases cannot be overstated. Experts from diverse disciplines such as radiology, pathology, and internal medicine can collaboratively work to accurately determine the disease’s nature and extent, thereby formulating the most effective treatment plan. Ultimately, our case report demonstrates the complexity and diversity of gallbladder cancer, thereby providing crucial insights into the disease process and potential therapeutic approaches.