The pathology of drop attacks: a case report

Area of Science:

• Neurology
• Neuroscience
• Pathology

Background:

• Drop attacks are characterized by sudden, brief episodes of falling without loss of consciousness.
• The underlying pathophysiology of drop attacks remains incompletely understood, with various hypotheses proposed.

Observation:

• A 65-year-old male experienced four drop attacks followed by a persistent stroke resulting in quadriplegia.
• Autopsy revealed infarction in the lower pons and upper medulla, primarily affecting the corticospinal tracts.
• Tegmental destruction involved specific reticular formation nuclei, sparing those associated with descending reticulospinal tracts.

Findings:

• This case presents the first detailed autopsy findings in a patient with drop attacks.
• The observed infarction pattern strongly implicates transient ischemia of the corticospinal tracts as a cause of these episodes.
• The specific pattern of tegmental involvement provides insights into the neuroanatomical basis of the observed symptoms.

Implications:

• This study supports the hypothesis that transient corticospinal tract ischemia can precipitate drop attacks.
• Understanding the vascular mechanisms of drop attacks can inform diagnostic and therapeutic strategies.
• Further research into transient ischemic events affecting specific motor pathways is warranted.