# A Narrative Review of Selective Versus Routine Histopathological Examination of Gallbladders in Low-Risk Patients

## TL;DR

This review compares routine and selective histopathological examination of gallbladders in low-risk patients, finding that routine exams detect more cancers but may be unnecessary in low-risk areas.

## Contribution

The paper provides a narrative review comparing selective and routine histopathological practices for gallbladders in low-risk patients.

## Key findings

- Selective histopathology detected all incidental gallbladder cancers in patients with preoperative or intraoperative suspicion.
- Routine histology identified significant numbers of cancers in patients with no intraoperative suspicion, including advanced cases.
- Selective examination may be safe in low-risk regions with experienced surgical evaluation, while routine exams are better in high-prevalence areas.

## Abstract

Gallbladder diseases are common surgical conditions that often necessitate a cholecystectomy. Traditionally, gallbladder specimens are sent for routine histopathological examination to detect incidental gallbladder carcinoma (IGBC). However, the need for this in low-risk patients remains a subject of debate, particularly considering the low incidence of IGBC and the strain on pathology services. This narrative review aimed to compare selective versus routine histopathological examination of gallbladder specimens in low-risk patients undergoing cholecystectomy. This review complies with the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines. A comprehensive search was conducted for studies between 2000 and 2022 across PubMed, Scopus, Embase, Web of Science, Cochrane Library, and ScienceDirect. Included studies involved patients with low preoperative suspicion of malignancy who were later diagnosed with gall bladder cancer via either routine or selective histopathological examination.

Sixteen studies met the inclusion criteria. Studies supporting selective histopathology reported that all cases of IGBC were suspected either preoperatively on imaging or intraoperatively based on macroscopic features. In contrast, studies advocating routine histology identified significant numbers of IGBC in patients with no intraoperative suspicion, including some with advanced-stage disease. These findings suggest that while selective examination may be safe in low-incidence regions with experienced surgical assessment, routine histology remains a more sensitive method in other areas. Selective histopathological examination of gall bladder specimens may be considered in carefully selected low-risk patients, provided a thorough intraoperative evaluation is performed. However, routine examinations remain important in regions with higher disease prevalence.