We describe a case of accidental intrathecal administration of vincristine in a 33-year-old man with clinical diagnosis of acute lymphocytic leukemia. The patient died 20 days after receiving the drug. Clinically, the patient developed acute ascending paralysis with motor and sensory dysfunctions, and respiratory failure. Neuropathological investigation revealed lesions in spinal cord, roots, and cerebellum characterized by rarefaction of the neuropil, axonal, and myelin degeneration, accompanied by macrophagic infiltration.
From the *Forensic Office, Forensic Medical Corps, Buenos Aires, Argentina; †The Forensic Office, Misiones, Argentina; ‡The Division of Neuropathology, Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Md; and §Department of Neuropathology, Institute for Neurological Research, FLENI, Buenos Aires, Argentina.
Manuscript received December 22, 2008; accepted January 18, 2009.
Reprints: Miguel A. Riudavets, MD, Department of Neuropathology, Institute for Neurological Research, FLENI, Montañeses 2325, 3rd floor, (C1428AQK) Buenos Aires, Argentina. E-mail: email@example.com.