Buckinghamshire-based Dr Marwan Omar Farouk is subject to a Medical Practitioners Tribunal on June 22.
It is alleged that in April 2014 Dr Farouk made the error when he performed a laparoscopic repair of a bilateral hernia and excision of a right epididymal cyst at the Chiltern BMI Hospital in Great Missenden.
He is accused of removing “Patient A’s” right testicle, and did not attempt to remove the cyst separately.
He is then said to have attempted to cover up the error.
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A notice of the hearing released to this newspaper by the Medical Practitioners Tribunal Service, reads: “It is further alleged that during a post-operative consultation with Patient A, Dr Farouk failed to inform Patient A that his testicle had been removed during the surgery and advised Patient A that ‘you have a small right testicle but it won’t give you any problems’, or words to that effect.
“It is also alleged that Dr Farouk wrote to Patient A’s GP and failed to advise them that Patient A’s testicle and had been removed and advised the GP that ‘some testicular tissue was damaged during the operation and was removed - this was confirmed on histology’, or words to that effect.”
The charges also state that Dr Farouk was undertaking surgery ‘outside his area of expertise’ and that his actions when dealing with the procedure were ‘misleading and dishonest’.
The hearing will be heard later this month.