Endobronchial metastasis from giant cell tumor of bone

A young woman presented with cough, dyspnea on exertion, and weight loss. A chest roentgenogram revealed collapse of the left lung. On doing fiberoptic bronchoscopy, a growth was found in the left main bronchus. Cytologic examination and sections from cell block revealed that it was a metastatic growth from a giant cell tumor (GCT) of the bone. To the best of our knowledge, this is the first report of endobronchial metastasis from a GCT of the bone.