Hemostasis Today

August, 2026
August 2026
M T W T F S S
 12
3456789
10111213141516
17181920212223
24252627282930
31  
N. Mariana S. Vasquez: USMLE Key Differences – Marfan Syndrome vs. Homocystinuria
Aug 25, 2026, 11:18

N. Mariana S. Vasquez: USMLE Key Differences – Marfan Syndrome vs. Homocystinuria

N. Mariana S. Vasquez, IMG Physician, shared a post on X:

“Marfan vs Homocystinuria, Both can cause a marfanoid habitus and lens dislocation, but the clues are different.

Marfan syndrome FBN1 mutation

  • Lens: up and out
  • Aortic root dilation → aortic dissection
  • Normal intelligence
  • AD inheritance

Homocystinuria Cystathionine β synthase deficiency

  • Lens: down and in
  • Thrombosis
  • Intellectual disability
  • AR inheritance

USMLE key: Marfan – Aorta Homocystinuria – Clots and cognitive impairment”

Stay updated with Hemostasis Today.