Saturday, August 14, 2010


Here, an example of Tetralogy of Fallot with pulmonary atresia (pseudotruncus arteriosus), a severe variant in which there is complete obstruction (atresia) of the right ventricular outflow tract, causing an absence of the pulmonary trunk during embryonic development. We see a complex heart malformation in a three-month boy: overriding aorta and ventricular septal defect (VSD).In these individuals, blood shunts completely from the right ventricle to the left where it is pumped only through the aorta. The lungs are perfused via extensive collaterals from the systemic arteries, and sometimes also via the ductus arteriosus.


Étienne-Louis Arthur Fallot (1850-1911) was a French physician born in Sète. Etienne Fallot attended medical school in Montpellier in 1867. While in residence in Marseille he wrote a thesis on pneumothorax. In 1888 he was made Professor of Hygiene and Legal Medicine in Marseille. In 1888 Etienne Fallot accurately described in detail the four anatomical characteristics of tetralogy of Fallot.

No comments: