Pulmonary Puzzler 340
Rapid descent

A 30 year old male presents with a 3 day history of fevers and increasing breathlessness. On presentation he is noted to be severely hypoxic with sats of 80% on room air. The following chest X-ray is obtained:

Pulmonary Puzzler 340
Ballooning Up

A 36 year-old immunosuppressed male was infected with swine-origin influenza virus requiring mechanical ventilation. Overnight the inspiratory pressures needed to maintain his tidal volume had progressively increased and his face had become markedly swollen.