Medical milestones, landmark publications, and notable births and deaths associated with October 21.

Events

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Births

1755 – Caleb Hillier Parry (1755-1822), English physician; provided early descriptions for Parry Disease (Graves disease), Progressive Hemifacial Atrophy (Parry-Romberg syndrome), and Hirschprung disease in his 1825 posthumously published works

1869 – Pierre Adolph Grisel (1869-1959), French paediatric ENT surgeon; described Grisel syndrome (1930)

1942 – Louis Arnold Gilula (1942-2014), American radiologist; described Gilula carpal arcs in 1979

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Deaths

1814– Gaspard Vieusseux (1746-1814), Swiss physician; described Vieusseux–Wallenberg Syndrome (1807) and the first recognition of epidemic cerebrospinal meningitis in Europe (1805)

1862 – Sir Benjamin Collins Brodie (1783-1862), English surgeon; described the Brodie–Trendelenburg Test (1846), Brodie’s Abscess (1832), and Brodie’s Knee (1813)

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Further reading