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Imaging 2005;17:101-112.
Testicular lumps
R Houghton and G Rottenberg
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Figure 22. Hydrocele. Anechoic fluid collection surrounding the testicle.

Imaging 2005;17:91-100.
Acute testicular pain
D LL Cochlin
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Figure 13. A heavily stranded inflammatory hydrocele is present in a patient with epididymitis. (Reproduced with permission of Martin Dunitz [8]).

Imaging 2005;17:91-100.
Acute testicular pain
D LL Cochlin
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Figure 11. Twisted testicular appendix. The swollen appendix is seen (arrow) with a surrounding hydrocele; testicular blood flow was normal on the Doppler ultrasound examination.

Imaging 2005;17:101-112.
Testicular lumps
R Houghton and G Rottenberg
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Figure 2. Appendix testis. Isoreflective nodule noted adjacent to the upper pole of the testis associated with a hydrocele (arrow).

Imaging 2005;17:91-100.
Acute testicular pain
D LL Cochlin
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Figure 8. A normal testicular appendix (arrow) is demonstrated in this neonate as it is surrounded by a hydrocele. (Reproduced with permission of Martin Dunitz [8]).

Imaging 2005;17:101-112.
Testicular lumps
R Houghton and G Rottenberg
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Figure 18. Epididymal cyst. There is a well-defined anechoic lesion in the head of the epididymis associated with a hydrocele (arrow). Note the absence of internal echoes within the lesion.

Imaging 2005;17:91-100.
Acute testicular pain
D LL Cochlin
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Figure 4. In a patient with clinically suspected spermatic cord torsion, normal intratesticular colour Doppler signal is present and a hydrocele outlines a narrow testicular hilum (arrows); the "bell-clapper deformity".

Imaging 2005;17:91-100.
Acute testicular pain
D LL Cochlin
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Figure 1. Spermatic cord torsion on power Doppler ultrasound. (a) Appearances at 4 h duration of symptoms. The testis demonstrates no colour Doppler signal and is avascular, but with a normal testicular reflective texture. The testis remains viable. (b) Appearances at 8 h duration of symptoms. The avascular testis has small areas of low reflectivity remaining viable (arrows), but with pockets of irreversible ischaemia (compare with Figure 1a). (c) Appearances at 36 h duration of symptoms. The testis is inhomogeneous with intense hyperaemia of the paratesticular tissues; the testis is no longer viable. A stranded haemato-hydrocele is also present (arrow).

Imaging 2005;17:101-112.
Testicular lumps
R Houghton and G Rottenberg
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Figure 14. Focal orchitis. (a) A 55-year-old man presented with a 5 day history of testicular pain and swelling. Ultrasound demonstrates a loculated hydrocele and a focal low reflective lesion in the upper pole of the testis with no increase in the colour Doppler signal; appearances are consistent with orchitis (arrow). Follow up ultrasound is always advised in such patients to confirm resolution of the changes and to monitor the appearance of the testicular lesion. (b) The same patient imaged 3 months later demonstrating persistence of the hypervascular ill defined intratesticular lesion (arrow). Orchidectomy was performed as there was concern that there may be a tumour in the testis.

10.

Imaging 2008;20:139-146.
Male infertility: role of imaging in the diagnosis and management
A J Edey and P S Sidhu
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Figure 4. Transverse view of a patient with severe epididymo-orchitis. There is marked increase in colour Doppler flow to a heterogeneous testis (long arrow) and evidence of a septated hydrocele (short arrow) with increased colour Doppler flow in the surrounding tissues.

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