Surgically resected gastric metastasis of pulmonary squamous cell carcinoma

Figure 1 Chest posteroanterior view, computed tomography scan and (¹⁸F) fluoro-2-deoxy-D-glucose positron emission tomography-computed tomography. A: A solitary mass with solid opacity in the right lower lung (RLL) (arrow); B: Chest computed tomography (CT) scan demonstrated an irregular mass measuring 5.8 cm in size with central necrosis at RLL (arrow); C: [¹⁸F] fluoro-2-deoxy-D-glucose-positron emission tomography (FDG-PET)/CT showed a FDG-avid mass on the right lower lobe, mediastinum, stomach and splenic hilum; D: Abdominal CT showed an encircling mass at the body of the stomach with multiple enlarged perigastric lymph nodes and splenic hilar invasion.

Figure 2 The biopsy showed syncytial growth of polygonal shaped poorly differentiated cells. A: Macroscopically, there was an ulcerofungating 4.0 cm × 3.5 cm lesion on the body; B, C: The bronchoscopic biopsy showed growth of polygonal shaped cells which were strongly positive for p63 and consistent with squamous cell carcinoma; D: Gastric ulcer specimen revealed multiple lymphatic invasion of carcinoma and chronic gastritis.