236 results match your criteria: "Adenomyomatosis Imaging"

Gallbladder adenomyoma/adenomyomatous nodule/adenomyomatosis is a benign condition characterized by mucosal invaginations within the gallbladder wall with or without proliferation of smooth muscle fibers. Gallbladder adenomyoma is often asymptomatic and discovered incidentally during imaging studies performed for other unrelated conditions. It can mimic malignancy on radiological findings, creating a diagnostic dilemma.

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A 21-year-old man was diagnosed with segmental adenomyomatosis of the gallbladder based on ultrasonography and computed tomography images. Computed tomography with drip infusion cholangiography revealed that the cystic duct joined the infraportal type of the left lateral bile duct (IPLLBD), which runs caudal to the umbilical portion, and that the left medial bile duct joined the right hepatic duct without forming the left hepatic duct. We planned a single-incision laparoscopic cholecystectomy with fluorescent cholangiography.

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Cholecystocolonic fistula: an incidental intraoperative discovery managed laparoscopically.

BMJ Case Rep

October 2024

General Surgery, Chettinad Academy of Research and Education, Kanchipuram, India

Cholecystoenteric fistula is a rare complication of cholelithiasis, occurring in 3%-5% of patients with cholelithiasis. The symptoms are typically minimal and vague, with either acute or subacute presentations, rarely leading to bowel obstruction, and occasionally manifesting as chronic abdominal pain. In this case, a male patient in his early 30s presented with epigastric and right hypochondrial pain.

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Navigating diagnostic challenges in xanthogranulomatous cholecystitis: A case report.

Radiol Case Rep

December 2024

Department of Cardiothoracic and Vascular Surgery, Manmohan Cardiothoracic Vascular and Transplant Center, Institute of Medicine, Tribhuvan University, Kathmandu, Nepal.

Article Synopsis
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Intracholecystic papillary neoplasm (ICPN) is a rare preinvasive neoplasm of the gallbladder. The lesion typically appears as a polypoid lesion or gallbladder wall thickening. We report a case involving a 40-year-old man with an ICPN that lacked typical polypoid lesions and was difficult to differentiate from adenomyomatosis because of the presence of intramural cysts.

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Imaging evaluation of the gallbladder is a fundamental skill in the majority of radiology practice. Due to ease of accessibility, low cost, lack of ionizing radiation, and excellent spatial resolution, ultrasound is often the first imaging modality used to evaluate the gallbladder. In this invited article we review and update how ultrasound can evaluate common pathologies including gallbladder polyps, tumefactive sludge, adenomyomatosis, and acute cholecystitis.

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Symptomatic Gallbladder Adenomyomatosis: A rare clinical presentation.

Int J Surg Case Rep

June 2024

Department of General Surgery, Macon Hospital, Macon, France.

Article Synopsis
  • Gallbladder Adenomyomatosis (GA) is a rare, benign condition often asymptomatic but can cause abdominal pain, typically affecting middle-aged individuals equally by sex.
  • A 49-year-old woman experienced sudden abdominal pain and underwent various imaging tests before a laparoscopic cholecystectomy confirmed she had acalculous cholecystitis associated with GA.
  • Diagnostic imaging techniques like echography, CT, and MRI can reveal specific signs linked to GA, suggesting a need for greater awareness among healthcare professionals to accurately diagnose this condition when symptoms occur.
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Gallbladder carcinoma represents the most aggressive biliary tract cancer and the sixth most common gastrointestinal malignancy. The diagnosis is a challenging clinical task due to its clinical presentation, which is often non-specific, mimicking a heterogeneous group of diseases, as well as benign processes such as complicated cholecystitis, xanthogranulomatous cholecystitis, adenomyomatosis, porcelain gallbladder or metastasis to the gallbladder (most frequently derived from melanoma, renal cell carcinoma). Risk factors include gallstones, carcinogen exposure, porcelain gallbladder, typhoid carrier state, gallbladder polyps and abnormal pancreaticobiliary ductal junction.

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In pulmonary lymphangitic carcinomatosis, it can be difficult to identify the primary site of the cancer on computed tomography (CT) imaging. Here, we report a rare case of pulmonary lymphangitic carcinomatosis, which was difficult to diagnose as gallbladder cancer. An 81-year-old woman, previously followed up for gallbladder adenomyomatosis, presented with persistent cough.

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Radiologists across many imaging modalities commonly encounter gallbladder adenomyomatosis. The classic imaging appearances of gallbladder adenomyomatosis are well described and confirm benignity. However, in clinical practice, adenomyomatosis can be challenging to differentiate from other gallbladder pathologies that require cholecystectomy.

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Introduction: Incidence of gallbladder polyps is 0,3-12%. It is important to differentiate pseudopolyps (cholesterol polyps, adenomyomatosis, inflammatory polyps), which do not have the capacity to become malignant, from true polyps (adenomas and adenocarcinomas). The main risk factors for malignancy are >6-10 mm, growth, sessile morphology, Indian ethnicity and primary sclerosing cholangitis.

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Extrahepatic biliary tract and gallbladder neoplastic lesions are relatively rare and hence are often underrepresented in the general clinical recommendations for the routine use of ultrasound (US). Dictated by the necessity of updated summarized review of current literature to guide clinicians, this paper represents an updated position of the Italian Society of Ultrasound in Medicine and Biology (SIUMB) on the use of US and contrast-enhanced ultrasound (CEUS) in extrahepatic biliary tract and gallbladder neoplastic lesions such as extrahepatic cholangiocarcinoma, gallbladder adenocarcinoma, gallbladder adenomyomatosis, dense bile with polypoid-like appearance and gallbladder polyps.

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Hyperammonemic encephalopathy is a potentially fatal condition associated with fibrolamellar hepatocellular carcinoma. The mechanism involved in hyperammonemia in patients with fibrolamellar carcinoma was unclear until a possible physiopathological pathway was recently proposed. An ornithine transcarboxylase dysfunction was suggested as a result of increased ornithine decarboxylase activity induced by c-Myc overexpression.

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Our patient was a 72-year-old man in whom a liver mass was identified on abdominal ultrasonography at the examination for which he was referred to our hospital. Contrast-enhanced CT showed that the liver mass was a hemangioma with a surrounding AP shunt. Gallbladder wall thickening could not be ruled out as gallbladder cancer; however, a high possibility of adenomyomatosis was considered.

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Adenomyomatosis and cholesterolosis of the gallbladder, collectively termed hyperplastic cholecystosis, are commonly encountered incidental findings on imaging studies performed for a variety of indications including biliary colic or nonspecific abdominal pain. These pathologies are rarely the source of symptoms, generally considered benign and do not require further work-up. However, their imaging characteristics can overlap with more sinister conditions that should not be missed.

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The gallbladder is a source of common disease processes with a wide variety of presentations. Common pathologies include acute or chronic cholecystitis, adenomyomatosis, cancer, polyps, and postoperative complications. Accurate imaging assessment of the gallbladder can be very challenging and fraught with potential pitfalls.

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Gallbladder polyps and adenomyomatosis.

Br J Radiol

February 2023

Division of Cancer & Genetics, School of Medicine, Cardiff University, Wales, United Kingdom.

Incidental findings are commonly detected during examination of the gallbladder. Differentiating benign from malignant lesions is critical because of the poor prognosis associated with gallbladder malignancy. Therefore, it is important that radiologists and sonographers are aware of common incidental gallbladder findings, which undoubtedly will continue to increase with growing medical imaging use.

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The gallbladder: what's new in 2022?

Abdom Radiol (NY)

January 2023

Department of Radiology, University of New Mexico, MSC10 5530, 1 University of New Mexico, Albuquerque, NM, 87131, USA.

This review focuses mainly on the imaging diagnosis, treatment, and complications of acute cholecystitis which is the most common benign disease of the gallbladder. The American College of Radiology appropriateness criteria for the imaging evaluation of patients with right upper quadrant pain and the Tokyo Guidelines for evaluating patients with acute cholecystitis and acute cholangitis are presented. The recent articles for using US, CT, MR, and HIDA in the evaluation of patients with suspected acute cholecystitis are reviewed in detail.

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Background: The accurate characterization of gallbladder wall thickening (GWT) into benign or malignant on ultrasound (US) is a significant challenge.

Methods: We searched the MEDLINE and EMBASE databases for studies reporting two-dimensional grayscale US in benign and malignant GWT. The pooled prevalence was calculated using a generalized linear mixed method with a random-effects model.

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Adenomyomatosis of the gallbladder is an acquired condition of the gallbladder with epithelial, mucosal, and muscular hypertrophy. The result is usually gallbladder wall thickening with associated diverticula known as Rokitansky-Aschoff's sinuses. These mucosal invaginations of the gallbladder wall may extend beyond the muscular layer.

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