•Aims:
This study’s aim is to present the specific ultrasonography (US) findings of a
series of urachus anomalies.
•Material
and methods: Seven patients with suspected urachal anomalies underwent US
scanning initially prior to the surgery and the features of images were
reviewed respectively. The clinical data and pathologic results were collected
also.
•Results:
US successfully diagnosed urachal anomalies in 5 patients (5/7, 71.4%) and
failed to diagnose in 2 patients (2/7, 28.6%). Patent urachus showed a tubule
between the umbilicus and bladder; urachal sinus was a blind focal dilatation
at the umbilical end, while vesicourachal
diverticulum was an outpouching at the vesical end and urachal cyst was
identified as an anechoic structure along the urachus. Non-enhancement in the
base and centre was
the distinct features of urachus carcinoma by contrastenhanced
ultrasonography (CEUS). Using a high frequency probe and CEUS the diagnostic
ability of US may be improved.
•
Conclusion: US showed good diagnostic ability in urachal anomalies and combined
with CEUS could improve the differential diagnosis.
•Keywords:
urachus anomaly; ultrasonography; contrast-enhanced ultrasonography; urachus
carcinoma
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