Port-site metastasis of unsuspected gallbladder carcinoma with ossification after laparoscopic cholecystectomy: A case report

Figure 1 Imaging examinations of the upper abdomen and the specimens seen during and after surgery. A: A mixed mass in the upper abdomen was found by ultrasound; B: A mass under the xiphoid process showed by enhanced magnetic resonance imaging; C: Laparoscopic exploration of the mass located outside the peritoneum; D: The mass was located between the muscles of the upper abdominal wall; E: The mass was about 5 cm × 3 cm × 3 cm; F: No obvious recurrence was found by abdomen enhanced computed tomography 1 yr after the latest surgery.

Figure 2 Postoperative pathological examination. A: Atypical epithelial cribriform hyperplasia was seen in some areas [hematoxylin and eosin (HE) 100 ×]; B: Protrusion into the cystic cavity with massive necrosis and hemorrhage; multifocal pericancerous interstitial ossification and infiltration into the fibrous stroma (HE 200 ×); C: Several foci of cancer cells produced a bone-like matrix (HE 200 ×); D: Part of the cyst wall thickening and fibrosis with previous hemorrhage and hemosiderin deposition and interstitial mass of fibrous bone (HE 100 ×).