From the NEJM:
A 60-year-old woman presented with abdominal discomfort that had developed over the previous several weeks. Laboratory evaluation was notable for the white-cell count, which included 1.8% eosinophils. Colonoscopy demonstrated a worm, which moved. The worm was 20 cm in length and was removed with an endoscopic snare and identified as Ascaris lumbricoides. The patient was given mebendazole. The abdominal discomfort resolved after the worm was removed.
Colonoscopy Developer Dies at 94 - NYTimes http://goo.gl/iBnOp - Dr. Wolff was unconventional and surely made headlines in his day.