Urology
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Urachal abnormalities are uncommon and the literature is primarily comprised of case reports. Conclusions regarding the presentation and diagnosis of these abnormalities may be elucidated by reviewing a large experience. ⋯ The diagnosis of urachal abnormalities can be made with certainty if a good physical examination and the appropriate radiographic test are performed. A patient who presents with periumbilical drainage should have a sinogram performed, which should be diagnostic for both a urachal sinus and a patent urachus. Any child who presents with a periumbilical mass should have an ultrasound performed, which should be diagnostic for a urachal cyst.