Michael P. Honan, MD

The sudden onset of a petechial rashon the upper and lower extremities,ecchymosis of the tongue, and anepisode of epistaxis prompted a78-year-old woman to seek medicalevaluation. She reported having takenone of her husband’s quinine pills aday earlier to alleviate leg cramps.The patient was otherwise in goodhealth and took no other medications.

The sudden onset of a petechial rashon the upper and lower extremities,ecchymosis of the tongue, and anepisode of epistaxis prompted a78-year-old woman to seek medicalevaluation. She reported having takenone of her husband’s quinine pills aday earlier to alleviate leg cramps.The patient was otherwise in goodhealth and took no other medications.