Yes, there are still some people who think the image on the Shroud is mere Pareidolia. But this is. From the Huffington Post on Nov 2:
As reported by The Toronto Star, Canadian doctors were shocked when they looked at an ultrasound image of a testicular tumour (see image above).
“It was very ghoulish, like a man screaming in pain,” Doctor Naji Touma, who works at Queen’s University in Kingston, Ont., told The Star about the picture taken in 2009.
Dr. Touma and Greg Roberts wrote in their paper submitted to the journal Urology that they saw a “…man’s face staring up out of the image, his mouth agape as if the face seen on the ultrasound scan itself.”
Their Urology abstract notes:
"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."
Source and full article:Face In Tumour: Testicular Growth Shocks Doctors After Ultrasound – The Huffington Post