🔬 Discovery

Lisch nodule

Nódulo de Lisch

Date
1937 · confidence high
Place
Vienna, Austria
Credited to
Karl Lisch
Field
Life & health

What was discovered

A pigmented iris hamartoma formed by dendritic melanocytes, a characteristic sign of neurofibromatosis type 1, described by Austrian ophthalmologist Karl Lisch.

What it led to

  • became a clinical diagnostic criterion for neurofibromatosis type 1
  • enabled non-invasive diagnosis through eye examination
  • spurred study of ocular manifestations of systemic genetic diseases

Links

Sources✓ verified 2026-09-28