Question

Identify the condition shown in the image.

• A. Lobar pneumonia
• B. Bronchopneumonia
• C. Acute glomerulonephritis
• D. Congested kidney

Hint:

A firm, airless, liver-like lung (red hepatization) points to which pneumonia pattern?

Answer 1

The Correct Option is A

Step 1: Interpret the gross specimen - a firm, airless, liver-like lung surface is the classic picture of red hepatization. Step 2: Red hepatization is the second of the four stages of $lobar\ pneumonia$ (congestion, red hepatization, grey hepatization, resolution). Step 3: In this stage the alveolar spaces fill with congested capillaries, erythrocytes, neutrophils and fibrin, giving the dense uniform consolidation of a whole lobe. Step 4: Bronchopneumonia gives patchy multifocal consolidation and the renal options do not fit a lung specimen, so the condition shown is lobar pneumonia.\[\boxed{\text{Lobar pneumonia}}\]