ARRS 2022 Abstracts

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E1491. The Gallbladder in a Nutshell: What Radiologists Need to Know
Authors
  1. Madiha Aslam; Mercy Fitzgerald Hospital
  2. Aparna Srinivasa Babu; Mercy Fitzgerald Hospital
Background
The gallbladder is a crucial small intra-abdominal structure but offers a broad spectrum of diseases including cholelithiasis, acute cholecystitis, chronic cholecystitis, adenomyomatosis, porcelain and xanthogranulomatous gallbladder, polyps, and gallbladder carcinoma and metastasis. There are also several post cholecystectomy and cholecystostomy complications that require accurate and timely diagnosis, e.g., bile leak, perforation, or injury of adjacent structures. The purpose of this exhibit is to provide a pictorial review of the wide variety of gallbladder diseases and its mimics as well as postoperative complications using multimodality approach (US, CT, MRI, MRCP, and HIDA) and provide important clues to identify different gallbladder diseases and mimickers.

Educational Goals / Teaching Points
The goals of this exhibit are to illustrate the classic imaging features of common and uncommon, acute and chronic primary gallbladder diseases utilizing different imaging modalities; review the different patterns of gallbladder carcinoma, gallbladder metastasis and mimics (e.g. xanthogranulomatous gallbladder); and review of multiple post-cholecystectomy and post-cholecystostomy complications that are associated with increased morbidity and mortality and require accurate and timely diagnosis to guide further management and intervention.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
We will provide a pictorial review of the spectrum of gallbladder diseases including acute and chronic entities, malignancy and its mimics, metastasis, and post-cholecystectomy and post-cholecystostomy complications using different imaging modalities (US, CT, MRI, MRCP, and HIDA).

Conclusion
Various gallbladder diseases have overlapping imaging appearances. Sound knowledge of the characteristic imaging patterns of different gallbladder diseases using a multimodality approach is essential to avoid misdiagnosis and guide further management and intervention.