case_images: PMC9247284_01
case_images: Coronal scans of the adrenals (1), inguinal region (2), pelvic area (3),
  portocaval (4), axillary (5), hilar (6), and peri-psoas muscle areas (7).
  Sagittal scan of the cervical area (8).
case_images: 10.1177_2050313X221106987-fig1.jpg
case_images: PMC9247284_01_10.1177_2050313X221106987-fig1.jpg
case_images: fig1-2050313X221106987
case_images: Splenic hypodensities and adrenal nodules were also discovered (Figure 1).
case_images: I(a): CD56 x100; Positive membranous staining. I(b): CK7 x400; Positive
  cytoplasmic staining of tumor cells with characteristic perinuclear dots.
  I(c): TTF1 x100; Positive nuclear staining. I(d): Synaptophysin x100;
  Positive cytoplasmic staining. II(a): HE x100; The tumor cells are arranged
  in nests of variable size and shape, some of which exhibiting peripheral
  nuclear palisading, set within a desmoplastic stroma. II(b): HE x400;
  Mitotic figures are also easily detected. II(c): HE x400; Tumor cells have
  high nuclear to cytoplasmic ratio and exhibit an oval to round nucleus with
  finely granular chromatin. Occasional necrotic areas are present (left upper
  area). II(c): HE x40; Sheets of metastatic small cell carcinoma cells (left
  lower half) in a lymph node (residual lymphocytes at the periphery).
case_images: 10.1177_2050313X221106987-fig2.jpg
case_images: PMC9247284_01_10.1177_2050313X221106987-fig2.jpg
case_images: fig2-2050313X221106987
case_images: A diagnosis of PDNEC was made (Figure 2 and figure 3).
case_images: Ki-67 immunohistochemical stain revealing expression by approximately 80% of
  the neoplastic cells. Original magnification 200x.
case_images: 10.1177_2050313X221106987-fig3.jpg
case_images: PMC9247284_01_10.1177_2050313X221106987-fig3.jpg
case_images: fig3-2050313X221106987
case_images: A diagnosis of PDNEC was made (Figure 2 and figure 3).
case_images: Initial (left) FDG-PET showing increased uptake in several organs
  versus mild progress seen in a comparable image
  6 months later (right).
case_images: 10.1177_2050313X221106987-fig4.jpg
case_images: PMC9247284_01_10.1177_2050313X221106987-fig4.jpg
case_images: fig4-2050313X221106987
case_images: A satellite lesion in the right lower lung lobe was also noted with an SUV = 6.9 (Figure 4).