Doctors who took an ultrasound of a man's testicles to find out what was causing him pain were surprised to find a face staring at them.

G. Gregory Roberts and Naji J. Touma, from Queen's University in Ontario, Canada, had conducted the ultrasound to examine an unusual mass in the testicle of a 45-year-old patient.

They submitted the startling image to the journal Urology. It was accepted in September for that month's picture feature of a unique case.

Under the title 'The Face of Testicular Pain', the authors wrote: The residents and staff alike were amazed to see the outline of a man’s face staring up out of the image, his mouth agape as if the face seen on the ultrasound scan itself was also experiencing severe epididymo-orchitis.

“A brief debate ensued on whether the image could have been a sign from a deity (perhaps ‘Min,’ the Egyptian god of male virility); however, the consensus deemed it a mere coincidental occurrence rather than a divine proclamation.”

The testicle was removed and the mass was tested to be harmless.