Lung primary primitive neuroectodermal tumor in an adult patient

A 53-year-old Caucasian male was evaluated for cough and exertional dyspnea. His past medical history was significant for heavy cigarette smoking and recurrent pneumonias. CT scan of the chest performed in January 2007 revealed multiple, sub-centimeter, calcified and non-calcified pulmonary nodules those were stable when compared to a scan done in May of 2005. However, a new 6mm non-calcified nodule was noted in the right lower lobe (Figure 1(A)). In June 2007, a repeat CT scan of the chest demonstrated enlargement of the nodule to a diameter of 2.5 cm (Figure 1(B)). Three weeks later, PET-CT showed high uptake within the mass (standardized uptake value maximum of 15.6) with a new subjacent nodule measuring 1.2 2.0 cm and no evidence of distal metastases (Figures 1(C) and (D)).