Fibrotic pleura with extensively ulcerated mesothelium and replacement by fibrinous deposits, capillary proliferation, interstitial hemorrhage and marked infiltration by lymphocytes, plasma cells and many neutrophils, cell debris with and related dense fibrosis. No evidence of granulomatous inflammation. No evidence of malignancy.
Right lung collapse and a moderate right-sided pleural effusion with peripheral contrast enhancemen indicating of empyema.
Soft tissue fragments collectively measured 12x9.5x2.3 cm, largest measured 6.5x4.5x2 cm, totally embedded.
Rt. Pleural decortication: