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Figure 5b.   Cutaneous nodules in a 51-year-old man with neurofibromatosis and prostatic adenocarcinoma. (a) Posteroanterior radiograph shows numerous well-marginated nodular areas of increased opacity projecting over the lower aspect of the thorax and a poorly marginated nodule overlying the upper aspect of the left hemithorax (arrow). Because the location of the upper nodule was uncertain, CT was performed. (b) CT scan helps confirm the intraparenchymal location of the nodule in the left upper lobe. (c) CT scan demonstrates multiple cutaneous nodules.