Malignant peritoneal mesothelioma with massive ascites as the first symptom: A case report

Figure 1 Histopathological and fluorescence in situ hybridization features. A and B: A large number of heterozygous cells, some of which are papillary structures, increased nucleocytoplasmic ratio, hyperchromatic nuclei, and obvious atypia (hematoxylin and eosin stain; scale bar: 100 μm); C and D: Fluorescence in situ hybridization detection results: CDKN2A (P16) probe (+), number of missing cells/total counted cells = 41%.

Figure 2 Abdominal computed tomography showed massive ascites without parenchymal lesions.

Figure 3 Enhanced magnetic resonance imaging showed massive peritoneal fluid accumulation and mild peritoneal thickening.