Alzheimer Disease · Pathology

What are 'Hirano bodies,' which are frequently observed in the hippocampus of Alzheimer patients?

  1. Extracellular calcium deposits
  2. Intracellular eosinophilic, actin-rich paracrystalline inclusions
  3. Clusters of degenerating mitochondria
  4. Nuclear inclusions of alpha-synuclein
Show answer and explanation

Correct answer: Intracellular eosinophilic, actin-rich paracrystalline inclusions

Hirano bodies are bright eosinophilic, rod-like inclusions found in the pyramidal cells of the hippocampus. They are primarily composed of actin and are a non-specific finding often seen in AD and normal aging.

Difficulty: Medium Question 12 of 20

Practice all 20 Alzheimer Disease questions

Keep practicing

More Alzheimer Disease questions