Bone lesions in recurrent glucagonoma: A case report and review of literature.

Glucagonomas are rare neuroendocrine tumors that arise from α cells of the pancreatic islets. Most of them are malignant and usually present as metastatic disease. Sites most commonly involved in metastases are the liver and regional lymph nodes.

Expectoration of a lung metastasis in a patient with colorectal carcinoma.

Metastatic disease is present in up to 20% of patients at the time of diagnosis of colorectal cancer. The most frequently involved sites are the liver and the lungs. A rare form of lung metastatic disease is endobronchial metastases, most commonly seen with breast cancer and colon cancer.