Macro description: The lung parenchyma showed scattered firm, gray-red patches reminiscent of a glandular pattern.
Micro description: The alveolar septa are infiltrated by lymphocytes and plasma cells. The interlobular septa are widened, and their edematous loose connective tissue shows severe chronic inflammatory infiltrate.
Clinical diagnosis: 34-year-old, homosexual AIDS patient. He was hospitalized because of recurrant pneumonias. 10 day after he featired clinical signs of sepsis and died .
Consensus disgnosis: Pneumocystis pneumonia.