A female newborn has a single perineal orifice. The chance that this baby has associated urologic problems is:
- <10%
- 30%
- 60%
- 90%
- None of the above
More than 90% of the time the diagnosis in girls can be established on perineal inspection. The presence of a single perineal orifice is a cloaca. Patients with a persistent cloaca have a 90% risk of urologic defects. (See Chapter 336, page 1358.Nelson Pediatrics 19th edn)
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