Incidental Detection of Inguinoscrotal Bladder Hernia with Associated Factors on F-fluorodeoxyglucose PET/CT Scans.

OBJECTIVE

To evaluate the associated factors of inguinoscrotal bladder hernia (ISBH), which was detected on 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) scans.

STUDY DESIGN

An observational study.

PLACE AND DURATION OF STUDY

Department of Nuclear Medicine, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey, from August 2010 to April 2021.

METHODOLOGY

In this study, 60 cases were subclassified in three age-matched groups; 15 patients diagnosed with ISBH in Group Ia, 15 cases with inguinoscrotal herniation (ISH) of bowel in Group Ib, and 30 patients without ISH in Group II. In the reconstructed PET/CT images, the prostate volume (PV), abdominal subcutaneous fat (SFV), and visceral fat (VFV) volumes were measured, and body mass index (BMI) was calculated.

RESULTS

There was a statistically significant relationship between subgroups of Group I in the measurements of BMI, PV, SFV, and VFV, which were higher in Group Ia than Group Ib. The lower SFV/VFV value in Group Ib was considered as the most important risk factor in developing ISH of the bowel. A significant statistical difference was found between Group I and II in terms of PV, VFV, and SFV/VFV parameters.

CONCLUSIONS

This study reiterated the impact of PV and the parameters representing abdominal fat distribution on ISBH development. PET/CT scan provided valuable information regarding both the hernia contents and the associated factors in which the higher PV had a significant association for the development of ISBH as well as lower SFV/VFV that was more prominent in ISH with bowel. Key Words: Inguinoscrotal bladder hernia, 18F FDG PET/CT scan, Subcutaneous fat, Prostate volume, Visceral fat.