Referral and Management of Cryptorchidism in Infants
Timing of Referral
- The American Urological Association (AUA) recommends that any testis still undescended at 6 months corrected age should be referred to a pediatric urologist for orchiopexy because spontaneous descent is highly unlikely after this point. 1
- In a 7‑month‑old infant, referral is considered immediate to avoid missed opportunity for optimal surgical timing. [1][2]3
Assessment Prior to Referral
Gestational Age
- Accurate determination of gestational age is essential, as all timing thresholds are based on corrected gestational age rather than chronological age. [1][4]5
Incidence in Premature Infants
- Premature infants have a 15‑30 % prevalence of cryptorchidism versus 1‑3 % in full‑term infants; spontaneous descent may still occur during the first 6 months corrected age but becomes unlikely thereafter. [1][3]
Physical Examination
- Documentation of whether the testis is palpable or non‑palpable directs the subsequent surgical approach. [1][2]
- Approximately 70 % of undescended testes are palpable. Among non‑palpable testes, 30 % are located in the inguinal‑scrotal region, 55 % are intra‑abdominal, and 15 % are absent or vanishing. [1][2]5
Red‑Flag Findings Requiring Urgent Evaluation
- Bilateral non‑palpable testes mandate immediate specialist consultation to exclude disorders of sex development (DSD) before any operative planning. [2][3]6
- Such cases also require urgent endocrine assessment (e.g., for congenital adrenal hyperplasia) to rule out underlying hormonal disorders. [2][6]
- The presence of phallic anomalies (e.g., hypospadias, micropenis) should trigger specialist evaluation for possible DSD. [2][6]
Imaging and Hormonal Therapy
- The AUA guidelines do not recommend any imaging studies (ultrasound, CT, MRI) before referral, as imaging does not alter management and may delay definitive surgery. [7][8][4][9]
- Hormonal therapy is not advised; orchiopexy remains the definitive treatment for cryptorchidism according to AUA recommendations. [7][8]4
Surgical Timing and Histologic Impact
- Testes that remain outside the scrotum beyond 6 months experience progressive germ‑cell loss and histologic damage, underscoring the need for early orchiopexy. [1][2]
Acquired Cryptorchidism
- When a testis that was previously documented in the scrotum ascends (acquired cryptorchidism), it exhibits the same adverse histologic changes as congenital undescended testes and therefore also requires timely surgical correction. [1][2]5