A 67-year-old man was revealed a right upper lung nodule by accident during a chest
CT examination 6 years ago, without any symptoms. The patient did not pay more attention
to the pulmonary nodule and received no further treatment. Three years later, the
patient presented with chest pain. A Chest contrast-enhanced CT showed a lobulated
mass in the upper lobe of the right lung, with mild heterogeneous enhancement, and
the upper edge of the mass locally invaded adjacent pleura. The patient underwent
CT-guided needle biopsy, histopathological and immunohistochemical findings were consistent
with diagnosis of pulmonary blastoma. Supplementary IHC of PD-L1(22C3) and PD-L1(E1L3N)
were negative. In this case, we present the images of 18F-FDG PET/CT about a rare
thoracic malignancy, pulmonary blastoma in adulthood, before and after chemotherapy
and immunotherapy, which has never been reported before.
Keywords
FDG - PET/CT - pulmonary blastoma in adulthood - treatment response
