PMC6609733_01
Upper gastrointestinal endoscopy revealed an esophageal large mass.
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Upper gastrointestinal endoscopy revealed a large esophageal mass with normal mucosa on the surface at 33 cm distant from an incisor tooth (Fig. 1).
a) CT scan showed large mass in the lower esophagus. b) PET-CT showed a hypermetabolic esophageal tumor (SUVmax = 7.89).
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Computed tomography (CT) showed a poorly enhanced large mass in the lower esophagus (Fig. 2a). Positron emission tomography/computed tomography (PET-CT) revealed a hypermetabolic esophageal tumor (standardized uptake value max = 7.89) with no evidence of distant metastasis (Fig. 2b).
Immunohistochemical findings. Tumor cells were reactive with synaptophysin, chromogranin A stain, and CD56.
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In addition, synaptophysin, chromogranin A and CD56 were positive (Fig. 3) and the Ki-67 labeling index was 80% by immunohistochemical staining.
a) CT scan showed metastasis in S6 of the liver. b) PET-CT showed metastasis in the right eighth rib.
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However, 5 months after the operation, a CT scan showed metastasis in segment 6 of the liver (Fig. 4a). Furthermore, PET-CT showed metastasis in the right eighth rib (Fig. 4b).
PET-CT showed new metastasis in hilar lymph node and sacrum.
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The metastasis at the right eighth rib disappeared; however, 2 months after radiation therapy, PET-CT showed a new metastasis of a hilar lymph node in the left lung (Fig. 5a) and sacral bone (Fig. 5b).