Pulmonary Metastasis of Benign Giant Cell Tumour of Bone Diagnosed By Fine-Needle Aspiration Cytology

Giant cell tumour of the bone is a locally destructive tumour that usually occurs in young adults. It frequently recurs and can produce metastatic lesions, most commonly in the lungs. We report a case of a metastatic pulmonary giant cell tumour, diagnosed by fine-needle aspiration cytology, in a young woman. Diagnosis can be challenging, because of its rarity and differential diagnosis. The correlation of the clinical and radiological findings is essential for the correct diagnosis.