On average, the life expectancy of peritoneal mesothelioma patients is 12 months. However, multiple studies have shown that patients who have cytoreduction with HIPEC experience significantly longer survival times. Many patients now survive up to 5 years and some even live beyond 7 years.
It was written by co-creator Mark Gatiss, who also portrays Mycroft Holmes, Sherlock's brother in the series, and was directed by Paul McGuigan. The episode is a contemporary adaptation of The Hound of the Baskervilles, one of Sir Arthur Conan Doyle 's most famous works.
A helicopter and men with guns are spotted in Tenby as latest Sherlock scenes are filmed in Wales. Cast and crew from BBC One hit drama Sherlock were seen at St Catherine's Island in Tenby.