The feasibility of Gazefinder under 12 months of age infants.

Eye-tracking to evaluate gaze patterns has developed as an assessment tool for children with autism spectrum disorder (ASD). Gazefinder is one of Eye-tracking devices and few studies have investigated whether it can measure the gaze data of infants under 12 months of age. We conducted a prospective cross-sectional study from April 2019 to March 2020 in a periodic health checkup in Ohchi County, Shimane, Japan. Participants included infants between 4 and 11 months of age who were not suspected the presence of developmental problems. Ninety-three participants' datapoints were analyzed. The mean age was 6.5 months and mean developmental quotient was 88%. The mean fixation time percentage of all sequences was 81.0% (standard deviation; 4.4), and there was no significant difference in each age group. Infants in all groups showed a significantly higher predilection for eyes than for mouths. There was a positive association of age with human gaze and a negative association with geometric gaze. Moreover, we confirmed that joint attention skills were enhanced in accordance with their growth process. The eye-tracking data were almost corresponding to previous studies' data of infant with typical development and Gazefinder could be applied to infants starting at 4 months of age.

Pediatric granulomatous orchitis: Case report and review of the literature.

An 11-year-old boy presented with fever and abdominal pain, and was diagnosed with retroperitoneal lymphadenitis. At the same time, a painless right scrotal mass was observed. On imaging the testis and the epididymal mass both had abundant blood flow, although tumor markers were negative. Although the right testis had shrunk after antibiotic treatment, swelling was persistent and incisional biopsy was therefore performed, resulting in diagnosis of granulomatous orchitis (GO). No recurrence was found. In cases of scrotal swelling in both the testis and the epididymis of an older child, it is necessary to consider the possibility of inflammatory GO, and orchiectomy should not be performed without careful consideration.