PMC7728110_01
Preoperative radiological evaluations: (A) Plain radiography revealed a huge soft tissue mass with inner calcification in the left abdomen and displaced bowel loop to the right; (B) Abdominal ultrasonography demonstrated a huge solid heterogeneous lesion with cystic changes and irregular calcifications in the abdominal cavity
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F1
Plain radiography showed huge soft tissue mass with inner calcification in the left abdomen and displaced bowel loop to the right (Figure 1A). Ultrasonography (US) demonstrated a heterogeneous huge solid lesion with cystic change and irregular calcifications in the abdominal cavity (Figure 1B).
PMC7728110_02
Photographs of the immature gastric teratoma: (A) Gross specimen; (B) Cross section of the gross specimen
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F2
The cut surface of the tumor revealed solid and cystic appearance with rupture (Figure 2).
Microscopic evaluations of the immature gastric teratoma: (A) Scan power view of the immature gastric teratoma showing normal gastric epithelium with ectodermal elements; (B and C) Low-power view showing ciliated columnar epithelium, immature cartilage, and glial tissue; (D) High-power view showing neuroectodermal rosettes. Hematoxylin-Eosin (HE) staining: (A) 20x; (B) 10x; (C) 40x; (D) 200x.
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F3
The final pathological diagnosis was immature gastric teratoma, grade 3 according to the Norris grading system (Figure 3).
PMC7728110_03