Diagnostic Approach for Suspected Cryptorchidism

Immediate Clinical Assessment

The American Academy of Pediatrics recommends a careful repeat physical examination by an experienced provider to determine if the missing testis is truly non-palpable or simply retractile, and imaging studies should NOT be performed 1
A retractile testis can be easily manipulated into the scrotum and remains there without traction, requiring only annual monitoring, as stated by the American Urological Association 1, 2
True cryptorchidism (palpable) requires surgical referral, as the testis can be felt in the inguinal canal but cannot be manipulated into the scrotum or stay there without traction, according to the American Academy of Pediatrics 1, 2
The examination should be performed with the child in multiple positions (supine, sitting, squatting) and with warm hands to minimize cremasteric reflex activation, as recommended by the American Academy of Pediatrics 1

The American College of Radiology states that ultrasound and other imaging modalities should NOT be performed prior to surgical referral, as these studies rarely assist in decision-making 1
Ultrasound has only 45% sensitivity and 78% specificity for localizing non-palpable testes, as reported by the American Urological Association 1
More than 70% of cryptorchid testes are palpable by an experienced examiner, making imaging unnecessary, according to the American Academy of Pediatrics 1
No radiological test can conclude with 100% accuracy that a testis is absent, as stated by the American College of Radiology 1
Imaging delays appropriate surgical referral and adds no clinical value, as reported by the American Urological Association 1, 4

For children under 6 months (corrected for gestational age), the American Academy of Pediatrics recommends monitoring for spontaneous descent, as this can occur in the first 6 months of life 4
Refer to pediatric urology/surgical specialist by 6 months if the testis remains non-palpable or truly undescended, as recommended by the American Academy of Pediatrics 4
For children 6-18 months old, immediate referral to pediatric urology/surgical specialist is indicated, as spontaneous descent after 6 months is unlikely, according to the American Urological Association 4
Surgery should ideally be performed by 18 months to preserve fertility potential, as stated by the American Society for Reproductive Medicine 4

If BOTH testes are non-palpable in a newborn, this is a medical emergency requiring immediate specialist consultation, as recommended by the American Academy of Pediatrics 1, 4
Urgent evaluation for disorder of sexual development (DSD), particularly congenital adrenal hyperplasia, is necessary, according to the American Academy of Pediatrics 1
A phenotypic male with bilateral non-palpable testes could be a 46,XX individual with life-threatening congenital adrenal hyperplasia, as reported by the American Urological Association 1, 4
Do NOT circumcise until the workup is complete, as recommended by the American Academy of Pediatrics 1

For truly non-palpable testes, diagnostic laparoscopy or open surgical exploration is the gold standard with nearly 100% sensitivity and specificity, as stated by the American Urological Association 1, 5
The surgical objectives are to identify the testicular vessels to determine if testicular tissue is present, locate the testis (intra-abdominal, inguinal canal, or absent), and perform orchiopexy if viable testis is found, according to the American Society for Reproductive Medicine 3, 5

Ordering ultrasound or CT/MRI before referral delays appropriate care and provides no actionable information, as reported by the American College of Radiology 1, 4
Delaying referral beyond 6 months of age in infants with persistent undescended testis can result in decreased fertility potential, according to the American Urological Association 4
Mistaking a retractile testis for cryptorchidism can lead to unnecessary surgical intervention, as stated by the American Academy of Pediatrics 1, 2
Missing bilateral non-palpable testes in a newborn requires emergency evaluation for DSD, as recommended by the American Academy of Pediatrics 1, 4
Failing to correct for gestational age in premature infants when determining the 6-month referral timeline can result in delayed diagnosis and treatment, according to the American Academy of Pediatrics 4