Torsion of the appendix testis

Rakhee Gawande, Heike E. Daldrup-Link, Beverley Newman

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Imaging description A longitudinal ultrasound of the right scrotum (Fig. 73.1) in a 13-year-old boy with gradual onset of testicular pain demonstrates a well-defined oval hypoechoic avascular structure located in the groove between the testis and epididymis. There was mild hyperemia of the testis and epididymis, which were otherwise normal in appearance. A moderate hydrocele and scrotal wall edema was also noted. These findings were suggestive of torsion of the appendix testis. Importance. Testicular appendages are remnants of embryonic mesonephric and paramesonephric ducts and consist of vascularized connective tissue. Five types of appendages have been identified. The appendix testis is a tiny structure, 1–7 mm in size, located at the upper pole of the testis, in the groove between the testis and epididymis. It has similar echogenicity to the testis and may be oval or sessile and less commonly pedunculated. It is present in 92% of patients and is the commonest appendage to undergo torsion. The appendix epididymis is located at the head of the epididymis, is commonly pedunculated, and is less frequently seen on ultrasound. The other appendages are difficult to identify on ultrasound imaging.

Original languageEnglish (US)
Title of host publicationPearls and Pitfalls in Pediatric Imaging
Subtitle of host publicationVariants and Other Difficult Diagnoses
PublisherCambridge University Press
Pages303-306
Number of pages4
ISBN (Electronic)9781139084239
ISBN (Print)9781107017498
DOIs
StatePublished - Jan 1 2012
Externally publishedYes

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Testis
Epididymis
Testicular Hydrocele
Wolffian Ducts
Scrotum
Hyperemia
Connective Tissue
Ultrasonography
Edema
Pain

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Gawande, R., Daldrup-Link, H. E., & Newman, B. (2012). Torsion of the appendix testis. In Pearls and Pitfalls in Pediatric Imaging: Variants and Other Difficult Diagnoses (pp. 303-306). Cambridge University Press. https://doi.org/10.1017/CBO9781139084239.074

Torsion of the appendix testis. / Gawande, Rakhee; Daldrup-Link, Heike E.; Newman, Beverley.

Pearls and Pitfalls in Pediatric Imaging: Variants and Other Difficult Diagnoses. Cambridge University Press, 2012. p. 303-306.

Research output: Chapter in Book/Report/Conference proceedingChapter

Gawande, R, Daldrup-Link, HE & Newman, B 2012, Torsion of the appendix testis. in Pearls and Pitfalls in Pediatric Imaging: Variants and Other Difficult Diagnoses. Cambridge University Press, pp. 303-306. https://doi.org/10.1017/CBO9781139084239.074
Gawande R, Daldrup-Link HE, Newman B. Torsion of the appendix testis. In Pearls and Pitfalls in Pediatric Imaging: Variants and Other Difficult Diagnoses. Cambridge University Press. 2012. p. 303-306 https://doi.org/10.1017/CBO9781139084239.074
Gawande, Rakhee ; Daldrup-Link, Heike E. ; Newman, Beverley. / Torsion of the appendix testis. Pearls and Pitfalls in Pediatric Imaging: Variants and Other Difficult Diagnoses. Cambridge University Press, 2012. pp. 303-306
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