Real Time F-18 FDG PET-CT-Guided Metabolic Biopsy Targeting Differential FDG Avidity in a Pulmonary Blastoma
Tarun Kumar Jain1, Harmandeep Singh1, Rajender Kumar1
1Department of Nuclear Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012 India.
Abstract:
Pulmonary blastoma (PB) is a rare thoracic malignancy and preoperative diagnosis is challenging. A young man presented with dyspnea and chest pain for 3-4 months and chest-computed tomography (CT) revealed large mass in the left lung upper lobe and pleural effusion. Repeated CT-guided fine-needle aspiration cytology from the lesion and pleural fluid aspiration was negative for malignancy. F-18-fluorodeoxyglucose positron emission tomography-computed tomography (FDG PET-CT) revealed heterogeneous tracer avidity in left lung mass with areas of necrosis. Real-time PET-CT-guided biopsy from metabolically active component of the lesion revealed biphasic PB on histopathology.
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