As PTLD presents within the thorax in more than 70% of lung transplants, chest x-ray may reveal parenchymal lesions, infiltrares and These findings can be further evaluated by CT scan of the chest ,abdomen, and pelvis, which can be used to assess for lymphadenopathy as well. In approximately 50% of cases of intrathoracic PTLD, a single pulmonary nodule is seen. Imaging of the head and neck may be performed given a predilection for the CNS and cervical lymph nodes. Fluoro-2-deoxy-D-glucose (FDG-PET) has become essential for accurate staging of extranodal and extrathoracic sites of disease.