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Insights into Imaging
Fig. 17 | Insights into Imaging

Fig. 17

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

Fig. 17

Pseudomyxoma peritonei arising from a ruptured appendiceal mucinous neoplasm. Coronal (a) and axial (b) CT images in the portal phase show voluminous mucinous ascites (white asterisks) with a diffuse distribution. Note the loculated aspect of the ascites with scalloping of the liver surface (yellow arrows). In this case the primary appendiceal neoplasm was difficult to identify on CT due to its massive rupture. c, d Intraoperative views show accumulation of yellowish gelatinous material within the abdominal cavity. e H&E stain photomicrograph shows large bluish lakes of mucin with strips of epithelial cells that show minimal cytologic atypia, corresponding to a LAMN

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