Fig. 4

Histological findings of mast cell infiltration (mastocytosis) and degranulation (toluidine blue, 40 X magnifications). Due to increased pressure during laparosocpy, there was an increase in the number and degranulation of mast cells in the omentum, mesenterium, and peritoneum. Red arrows indicate non-degranulated mast cells, and green arrows indicate degranulated mast cells. The mast cells were commonly identified in perivascular (black arrow).