The classification of gallbladder perforation was proposed by Neimeier and later modified by Anderson et al. in 1987, which at the time of writing remains the most widely accepted classification for gallbladder perforation.
According to this classification, there are three main clinical subtypes. A fourth type is suggested by Anderson et al. 1:
1. Anderson BB, Nazem A. Perforations of the gallbladder and cholecystobiliary fistulae: a review of management and a new classification. J Natl Med Assoc. 1987;79 (4): 393-9. Free text at pubmed - Pubmed citation
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