Thanks for posting on HCM,
You need to know that in 90% of cases, acute cholecystitis
is caused by gallstones in the gallbladder
. Other causes include severe illness and (rarely) tumors of the gallbladder-depending mostly on age and other risk factors. It occurs when bile becomes trapped in the gallbladder. The buildup of bile causes irritation and pressure in the gallbladder. This can lead to infection and a hole (perforation) in the organ. These stones can clear off after a while ( by dissolution) so can not be seen on CT scan
( probably reason for your presentation).
Treatment will consist mainly of non-surgical means which include antibiotics such as ciprofloxacin
, pain killers, antispasmodics, antiemetics.
The specialist you will need to consult is a gastroenterologist or a visceral surgeon.
Hope this was helpful