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  Indian J Med Microbiol
 

Figure 2: A 46-year-old man with history of hypertension presented with complaints of hyper-pigmentation, recurrent episodes of flushing and skin infection for one year. On evaluation, his serum ACTH was raised (118 pg/ml) and computed tomography scan showed small sized nodules in the anterior segment of upper lobe and anterior basal segment of lower lobe of left lung, suspicious for ectopic ACTH producing tumor. 68Ga-DOTANOC positron emission tomography/computed tomography scan was done to characterize the lesions, revealed: Maximum intensity projection (a) image showing focal intense tracer uptake in the left lower lung (arrow). Axial computed tomography (b), and fused positron emission tomography/computed tomography (c) images showing intensely tracer avid (SUVmax 14.6) soft tissue lesion (measuring ~ 1.4 cm × 1.3 cm) in the anterior basal segment of lower lobe of left lung (arrows). Axial computed tomography (d) and fused positron emission tomography/computed tomography (e) images showing non tracer avid small sized nodule in the upper lobe of left lung (arrow). The tracer avid lesion in the lower lobe of lung was excised following positron emission tomography and histopathologically verified as well differentiated neuroendocrine carcinoma

Figure 2: A 46-year-old man with history of hypertension presented with complaints of hyper-pigmentation, recurrent episodes of flushing and skin infection for one year. On evaluation, his serum ACTH was raised (118 pg/ml) and computed tomography scan showed small sized nodules in the anterior segment of upper lobe and anterior basal segment of lower lobe of left lung, suspicious for ectopic ACTH producing tumor. <sup>68</sup>Ga-DOTANOC positron emission tomography/computed tomography scan was done to characterize the lesions, revealed: Maximum intensity projection (a) image showing focal intense tracer uptake in the left lower lung (arrow). Axial computed tomography (b), and fused positron emission tomography/computed tomography (c) images showing intensely tracer avid (SUVmax 14.6) soft tissue lesion (measuring ~ 1.4 cm × 1.3 cm) in the anterior basal segment of lower lobe of left lung (arrows). Axial computed tomography (d) and fused positron emission tomography/computed tomography (e) images showing non tracer avid small sized nodule in the upper lobe of left lung (arrow). The tracer avid lesion in the lower lobe of lung was excised following positron emission tomography and histopathologically verified as well differentiated neuroendocrine carcinoma