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Our aim was to gain an idea about testicular injury by comparing the reduced volume, which is one of the indirect indicators of testicular damage in undescended testes, and by evaluating the reduced microvascular blood flow by superb microvascular imaging, and also to determine whether superb microvascular imaging modes could detect microvascular blood flow in more detail in the decreased volume of undescended testes. We compared testicular blood flow in undescended testes via conventional Doppler imaging, color superb microvascular imaging, and monochrome superb microvascular imaging techniques with contralateral normally located testis and normal control group. Each sample of testicular tissue was evaluated using a qualitative method. Spot color encoding and linear flow color encoding counts determined in testicular parenchyma were counted separately and expressed as numerical data. The localization of the examined testes in the grayscale was noted (proximal inguinal canal, medial inguinal canal, distal inguinal canal, and scrotal). The volume of undescended testes was calculated automatically via a formula for volume. Monochrome superb microvascular imaging is significantly superior in visualizing the vascularity of undescended testes compared with color Doppler, power Doppler and color superb microvascular imaging (p = 0.001). Also, undescended testes have a significantly lower blood flow compared with contralateral normal testes (p = 0.001). The volume of undescended testes was significantly lower than the contralateral normal testes. The volume, structure and blood flow are indirect signs of testicular damage in undescended testes. Monochrome superb microvascular imaging can detect vascularity in undescended testes better than the conventional Doppler imaging technique and color superb microvascular imaging. Based on our findings, we can report that monochrome superb microvascular imaging can be used to evaluate testicular injury and vascularity of undescended testes. [ABSTRACT FROM AUTHOR]

Abdominal hernias are usually located in the inguinal canals. Differential diagnosis of hernias should consider other pathologies, which typically occur at this site. The aim of this review paper is to present fat-containing lesions located in the inguinal canal based on both our own experience and literature. The first part of the paper describes the embryogenesis and differences in the structure and content of male and female inguinal canal. The canal is clearly wider in men, which results from the presence of the spermatic cord and its components. The female canal contains only the narrow round ligament of the uterus. The second part of the paper discusses the incorrect use of the term "lipoma" for retroperitoneal fat, which penetrated into the lumen of the patent processus vaginalis -- the authors using this term acknowledge its incorrectness. These lesions often coexist with oblique inguinal hernia and should be excised during a surgery as they may cause inguinal pain. As for other fat-containing inguinal pathologies, we discussed lipomatosis of the spermatic cord, liposarcoma and the greater omentum. Differential diagnosis of these lesions considers their echogenicity, echostructure and vascularity. Furthermore, attention was paid to the adipose tissue surrounding the lower epigastric vessels, which may be incorrectly localized in the inguinal canal. Finally, the importance of proper diagnostic methodology and knowledge of the inguinal anatomy for the correct ultrasonographic diagnosis was emphasized. [ABSTRACT FROM AUTHOR]