Disorders/Syndromes

Question 0

Types of TEF:

Type II
Type A

Answer 0

Proximal and distal esophageal bud—a normal esophagus with a missing mid-segment.

Question 1

Types of TEF:

Type I

Answer 1

Esophageal agenesis. Very rare.

Question 2

Types of TEF:

Type III A
Type B

Answer 2

Proximal esophageal termination on the lower trachea with distal esophageal bud.

Question 3

Types of TEF:

Type III B
Type C

Answer 3

Proximal esophageal atresia (esophagus continuous with the mouth ending in a blind loop superior to the sternal angle) with a distal esophagus arising from the lower trachea or carina. (Most common, up to 90% of cases.)

Question 4

Types of TEF:

Type III C
Type D

Answer 4

Proximal esophageal termination on the lower trachea or carina with distal esophagus arising from the carina.

Question 5

Types of TEF:

Type E

“H type”

Answer 5

A variant of type D: if the two segments of esophagus communicate, this is sometimes termed an H-type fistula due to its resemblance to the letter H. TEF without EA.