PMC5499109_01
PET/CT: FDG-avid mass in antrum.
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Positron emission tomography (PET) scan showed FDG-avid mass in the gastric antrum without evidence of loco-regional or distant metastasis (Fig. 1).
Poorly differentiated gastric carcinoma, notice signet ring cells (arrows).
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Pathology reported a G3 diffuse poorly differentiated gastric carcinoma with signet ring cell components; pT3, N3a, M0 consistent with stage III B (Fig. 2).
PET/CT: Sclerotic lesions, some FDG-avid.
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Imaging studies during hospitalization include a CT of the chest/abdomen/pelvis that showed multiple new sclerotic lesions throughout osseous structures suspicious for metastases and a PET/CT that showed multiple sclerotic lesions throughout the axial and appendicular skeleton, some FDG-avid and suspicious for active osseous metastases (Fig. 3).
Bone marrow biopsy: Poorly differentiated gastric carcinoma, notice signet ring cells (arrows).
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Bone marrow biopsy showed metastatic poorly differentiated carcinoma consisted with known history of primary gastric cancer (Fig. 4).