When ultrasound fails to demonstrate a palpable abdominal mass.
Center for Diagnostic Ultrasound, Akita Red Cross Hospital, 222-1 Saruta, Kamikitade, Akita, 010-1495, Japan.
Mamiko
M
Yamada
Center for Diagnostic Ultrasound, Akita Red Cross Hospital, 222-1 Saruta, Kamikitade, Akita, 010-1495, Japan.
Tomoya
T
Komatsuda
Center for Diagnostic Ultrasound, Akita Red Cross Hospital, 222-1 Saruta, Kamikitade, Akita, 010-1495, Japan.
Kayoko
K
Furukawa
Center for Diagnostic Ultrasound, Akita Red Cross Hospital, 222-1 Saruta, Kamikitade, Akita, 010-1495, Japan. ishida@archosp-1998.com.
Hideaki
H
Ishida