An unusual association of hypospadias with partial deletion of chromosome 1q

Chromosome 1q21 translocation and spermatogenesis failure: Two case reports and review of the literature

RATIONALE

For the carriers of chromosome reciprocal translocation, the reason why some are fertile and others are infertile remains unclear. Here, we describe 2 patients who are carriers of chromosome 1q21 translocation with azoospermia.

PATIENT CONCERNS

A 29-year-old male and a 33-year-old male presented at the clinic with a diagnosis of infertility.

DIAGNOSIS

Both patients with azoospermia were diagnosed with Routine semen analysis, cytogenetic diagnosis and detection of serum reproductive hormones. The karyotype results of 2 patients were 46,XY,t(1;17)(q21;q23) and 46,XY,t(1;10)(q21;p12), respectively.

INTERVENTIONS

After genetic counseling and informed consent, 1 patient (Case 2) chose microsopic testicular sperm extraction (micro-TESE).

OUTCOMES

After micro-TESE, no sperm was found for the patient. Finally, both patients chose clinical treatment through artificial insemination with donor sperm.

LESSONS

These outcomes suggest that breakpoint at 1q21 should be paid attention by physician in genetic counseling, may harbor some genes associated with spermatogenesis, and deserves further be studied on the function of related genes.