1842 Death certificate

[4b2]

Hello,

I am looking for an extra pair of eyes on the cause of death on the below death certificate. The best I can get is - fistula.

Thanks for your time in advance.

Link: https://i.ibb.co/BWyBF83/TUDOR-Thomas-1842.jpg

[mckha489]

That’s all I can get too.
Not very informative 
You would think they could at least have said where on the body the fistula was.

[HistoricalGenealogy]

Pretty sure of it:

Row No: 311
When and where died: Fifth of May 1842 New Mills Manafon
Name and surname: Thomas Tudor
Sex: Male
Age: 50 Years
Rank or Profession: Labourer
Cause of Death: Fistula
Signature, description, and residence of informant: The Mark X of Alice Tudor Present at the Death New Mills Manafon
When registered: Seventh of May 1842
Signature of registrar: Evan Jones Registra

[4b2]

Thanks for your help