Hi and welcome to HCM.Thank you for your querry.
Zhis isnt very common in his age. Usually abscesses are found after sepsis
or some serious surgical procedure. It is important to be sure that his isnt adenoma
, or ehinococal cyst
. The best treatment is surgical, but sometimes doctors try with antibiotics first and see is there improvement.
170mm is really small abscess ant I think it can be managed nonoperatively. This shouldnt be anythng serious and will heal without consequances.
Wish you good health.