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Fig. 1 | World Journal of Surgical Oncology

Fig. 1

From: The diagnostic utility of retroperitoneoscopic tissue biopsy for unresectable retroperitoneal lesions excluding urogenital cancers

Fig. 1

A representative case undergoing retroperitoneoscopic tissue biopsy. a Contrast-enhanced CT scan of a 39-year-old woman demonstrates extra-urinary tract lesions of bilateral ureters, which results in hydronephrosis. There are other multiple space-occupying lesions around the abdominal aorta and the inferior vena cava. b Intraoperative finding of the retroperitoneoscopic tissue biopsy. Tumors and their surrounding organs and structures are identified in order to make tissue biopsy easy and safe. A couple of tumor blocks are resected using cold scissors and removed through a small retrieval pouch. This case was pathologically diagnosed IgG4-related fibrosis

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