These scans reportedly show a chicken egg-sized stone clogging the bladder of an elderly patient who waited five years to have it treated.
Mr Zhou, 68, revealed that he had first been diagnosed with the hardened calculus – a bladder stone – in his bladder in 2014, when it was still the size of a ‘peanut’.
He refused treatment, believing he could suppress its growth with the help of medication, a hospital report said.
Huang Suning, urologist at the Third Affiliated Hospital of Guangdong Pharmaceutical University in South China, ordered scans of the pensioner’s bladder which showed the giant oval stone blocking it.
Compared by the hospital to a chicken egg, the calculus measuring 1.5 inches in length and 0.8 inches wide caused Mr Zhou intense pain as he struggled to relieve himself in recent months.
Doctor Huang said: “When asking about his medical history, he told me he had been diagnosed with bladder stones five years ago
“But it wasn’t big. It was about the size of a peanut – 1 centimetre.
“But now there was a lot of discomfort, and he had trouble urinating.
“Five years ago he had no symptoms, otherwise he’d have been treated.”
Doctor Huang explained the peanut-sized calculus would have obstructed his urine, causing urine retention, which lead to the stone increasing in size.
Mr Zhou underwent a routine surgery to have the stone removed at the end of November and has since been discharged.
In October, Zhongda Hospital, in the coastal city of Nanjing in East China, treated an 83-year-old whose bladder was filled with more than 100 stones.
Doctor Sun Chao said his patient was aware of the calculi beforehand but also opted against treatment, leading to a worsening of the condition due to an enlarged prostate.
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