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Insights into Imaging
Fig. 12 | Insights into Imaging

Fig. 12

From: Primary and secondary tumors of the peritoneum: key imaging features and differential diagnosis with surgical and pathological correlation

Fig. 12

Peritoneal carcinomatosis arising from a high-grade ovarian serous adenocarcinoma, in a 77-year-old woman with abdominal distension. Axial (a, b) and coronal (c) CT images in the portal phase show a solid right adnexal mass (red arrows) with peripheral calcifications (yellow arrow) representing the primary tumor, which infiltrates the anterior mesorectal fascia. It shows signs of peritoneal dissemination with stranding of the mesenteric and omental fat, significant ascites and confluent solid omental and mesenteric nodules and masses. Note the presence of dystrophic calcifications within these omental and mesenteric implants, corresponding to psammoma bodies (yellow arrows). d Surgical specimen after cytoreductive surgery shows en bloc pelvic resection of the right ovarian mass (red arrow) with involvement of the contralateral ovary (green arrow) and the rectum, and peritoneal dissemination with infiltration of the small bowel mesentery (white arrow). Note the whitish appearance of the confluent omental masses related to the presence of dystrophic calcifications (yellow arrows). e H&E stain photomicrograph shows a high-grade serous adenocarcinoma with the presence of multiple psammoma bodies (yellow arrows)

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