4 PI24 CIRUGA GENERAL Patologa biliar Colecistitis crnica

Understanding Chronic Cholecystitis

Definition and Misconceptions

• The term "chronic cholecystitis" is an anatomical pathological term, not to be confused with acute episodes.

• It is incorrect to state that chronic cholecystitis can have multiple acute phases; true chronicity requires specific findings of chronic inflammation.

Characteristics of Chronic Inflammation

• Key features include fibrosis in the gallbladder wall, leading to loss of contraction ability and function.

• Diagnosis relies on criteria such as wall fibrosis and impaired vesicular function.

Visual Indicators

• Imaging may show a thickened gallbladder wall, potentially calcified, referred to as "porcelain gallbladder."

• Fibrosis is a critical keyword; excessive fibrosis can lead to calcification.

Pathological Changes

• Increased proliferation of small openings known as Rokitansky-Aschoff sinuses occurs during chronicity.

• These sinuses represent invaginations of the mucosa forming gland-like structures within the wall.

Risks Associated with Chronic Cholecystitis

• Chronic cholecystitis can evolve towards malignancy, particularly in cases like porcelain gallbladder where cancer risk ranges from 20% to 30%.

• This highlights the importance of recognizing chronic cholecystitis beyond mere repetition or duration of symptoms.

Conclusion on Terminology

• It's essential to understand that "chronic cholecystitis" is a histopathological term that encompasses more than just recurrent episodes.