IPLab:Lab 3:Bronchopneumonia

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Clinical Summary[edit]

This 15-year-old black female sustained third degree burns involving approximately 85% of the body surface. On admission to the hospital, the patient was taken to the operating room where a tracheotomy was performed and her burned body surface was debrided. After a few days of hospitalization, the peripheral white blood count was 41,000 cells/mm³ with a shift to the left. In spite of intensive therapy, which included administration of fluids and antibiotics, the patient expired on the sixth hospital day.

Autopsy Findings[edit]

Each lung weighed approximately 630 grams and was studded with gray nodules which ranged in size from 3 to 6 mm in diameter. In several areas, these coalesced to form nodules having necrotic-appearing centers.


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Related IPLab Cases[edit]


A normal white blood cell count is 4,000 to 11,000 cells per cubic mm.

A shift to the left indicates an increased ratio of immature PMNs (bands) to mature PMNs (segs).

A normal adult left lung weighs 375 grams (range: 325 to 480 grams). And a normal adult right lung weighs 450 grams (range: 360 to 570 grams).

An abscess is a collection of pus (white blood cells) within a cavity formed by disintegrated tissue.

An abscess is a collection of pus (white blood cells) within a cavity formed by disintegrated tissue.

In alcoholics, aspiration pneumonia is common--bacteria enter the lung via aspiration of gastric contents.

An infiltrate is an accumulation of cells in the lung parenchyma--this is a sign of pneumonia.