Testicular appendage torsion in children.

Background: Testicular appendage torsion (TAT) is a medical emergency that presents as an acute scrotum, usually in children and preadolescents. In previous reports of TAT, most cases have been treated conservatively, but some necessitate surgical treatment. Our aim was to examine the incidence, clinical examination findings, etiology, and treatment of TAT.

Methods: We retrospectively reviewed records of all patients with TAT (aged ≤15 years) treated at the Juntendo University Urayasu Hospital between January 2012 and September 2020. Surgical treatment was performed when a diagnosis of testicular torsion could not be completely ruled out or if pain recurred after conservative treatment. Patients with a hard scrotum or scrotal erythema were hospitalized for conservative treatment. Data regarding age, diagnosis, blood test results, and clinical findings were analyzed.

Results: Among 101 boys with TAT, the median age was 10 years. The incidence of TAT varied significantly according to age and was highest among patients aged 8-11 years. Sixty-seven boys (66.3%) underwent inpatient surgical treatment, 10 boys (9.9%) received inpatient conservative treatment, and 24 boys (23.8%) received outpatient conservative treatment. The median duration of hospitalization was significantly shorter among those who underwent surgery (2.0 days) than among those who received inpatient conservative treatment group (3.5 days).

Conclusions: Operations were short, uncomplicated, and safe; they shortened the hospital stay; and they would certainly prevent recurrence of TAT and testicular torsion on one side. Furthermore, we recommended that TAT patients presenting with signs of severe inflammation, such as hard scrotum or scrotal erythema, receive early surgical treatment to minimize duration of hospitalization.