Ultrasonographic diagnosis of inguinal hernia In children
Akira Toki, Kaoru Ogura, Akimitsu Miyauchi
Pediatr Surg Int 10: 541-543, 1995
from: Department of Pediatric Surgery, Kochi Municipal Central Hospital
During the past 2 years, 124 children with inguinal hernias
diagnosed clinically and confirmed at operation were managed at our clinic.
The processus vaginalis in the inguinal canal was examined preoperatively
in all children by ultrasonography with a I O-MHz transducer (SSD-650CL,
ASU-35WL- 10, Aloka, Tokyo) as the intra-abdominal pressure increased and
decreased. The ultrasonograms were divided into four types: type I, the
intestine is observed in the inguinal canal; type II, the cystic pattern
is seen at the internal ring of inguinal canal; type 111, the patent processus
vaginalis (PPV) enlarges when abdominal pressure increases; and type IV,
the PPV contains moving material without enlargement. Type I was observed
in 17 children (11 males and 6 females), type 11 in 26 (6 males and 20 females),
type 111 in 74 (60 males and 14 females), and type IV in 7 males; 7 1 %
of the male children showed type 111 and 50% of the females type II. All
children with type IV had a communicating hydrocele. These results indicate
that children showing one of the four ultrasonographic types have an inguinal
hernia.
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