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Collaborative Hypertext of Radiology

Cardiovascular system




A bluish cast to the skin resulting from increased deoxyhemoglobin in the blood.
  • Increased pulmonary blood flow and cyanosis = admixture lesions
    • TGV (transposition) -- most common cause on 1st day of life
    • TAPVR (total anomolous pulmonary venous return)
    • truncus arteriosis
    • tricuspid atresia with TGV (25% of TA cases)
    • single ventricle
    • common atrium
    • hypoplastic left heart
    • DORV (double outlet right ventricle)

  • Decreased pulmonary blood flow and cyanosis- right to left shunts
    • TOF (tetralogy of Fallot) -- most common overall
    • Ebstein's anomaly
    • tricuspid atresia without TGV (75% of TA cases)
    • pulmonic valvular atresia
see congenital heart disease

Charles E. Kahn, Jr., MD  -  2 February 1995
Last updated:  1 October 2013


Related CHORUS documents:
transposition of the great vessels
congenital heart disease
admixture lesion
Ebstein anomaly
egg-on-its-side heart
hypoplastic left heart syndrome


Copyright © 2013, Charles E. Kahn, Jr.