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Reactive ascitic fluid showing: a- Cluster of benign looking reactive mesothelial cells with low nuclear to cytoplasmic ratio (arrows) (Pap40×). b- Positive immunocytochemical expression of CAL with brown cytoplasmic and nuclear staining with strong intensity (arrows) (40×). c- Reactive mesothelial cells with negative immunocytochemical expression of CEA (arrow) (40×).
