208 results match your criteria Adenomyomatosis Imaging


Gallbladder polyps and adenomyomatosis.

Br J Radiol 2022 Jun 22:20220115. Epub 2022 Jun 22.

Division of Cancer & Genetics, School of Medicine, Cardiff University, CF14 4XN, 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. Read More

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The gallbladder: what's new in 2022?

Abdom Radiol (NY) 2022 Mar 29. Epub 2022 Mar 29.

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. Read More

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Grayscale ultrasonography findings for characterization of gallbladder wall thickening in non-acute setting: a systematic review and meta-analysis.

Expert Rev Gastroenterol Hepatol 2022 Jan 17;16(1):59-71. Epub 2022 Jan 17.

Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.

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. Read More

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January 2022

Gallbladder adenomyomatosis: Diagnosis and management.

Int J Surg Case Rep 2021 Jul 11;84:106089. Epub 2021 Jun 11.

Anaesthesiology and Reanimation Department, Jendouba Hospital, Tunisia; Tunis El Manar University, Tunisia.

Introduction: Gallbladder adenomyomatosis is a benign acquired gallbladder disease. It can mimic cancer on radiological findings, leading to a diagnostic dilemma. The management and prognosis of these two gallbladder anomalies are entirely different. Read More

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Diffuse Gallbladder Adenomyomatosis in a Child.

Cureus 2021 Jun 9;13(6):e15555. Epub 2021 Jun 9.

Radiology, Hanoi Medical University, Hanoi, VNM.

Adenomyomatosis of the gallbladder is a benign condition, usually occurring in middle age, in which the epithelium of the gallbladder proliferates and the gallbladder wall thickens with the presence of Rokitansky-Aschoff sinuses (RAS). The diffuse form is an unusual subtype of adenomyomatosis. Herein, we describe a 17-year-old female who presented with dull and intermittent pain in the right hypochondriac region for more than a month. Read More

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Diffuse Gallbladder Adenomyomatosis with an Inflammatory Complication in an Adult.

Case Rep Gastroenterol 2021 Jan-Apr;15(1):100-107. Epub 2021 Feb 1.

Department of Radiology, Hue Central Hospital, Hue, Vietnam.

Gallbladder adenomyomatosis (GA) is a benign alteration of the gallbladder wall. There are three types involved: segmental, fundal, and diffuse pattern; the last type is very rare. Ultrasound is the imaging method of choice for diagnosing that shows Rokitansky-Aschoff sinuses with cholesterol deposition creating comet-tail artifacts. Read More

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February 2021

Gallbladder polyps ultrasound: what the sonographer needs to know.

J Ultrasound 2021 Jun 6;24(2):131-142. Epub 2021 Feb 6.

Unit of Ultrasound in Internal Medicine, Department of Medicine and Science of Aging, "G. D'Annunzio" University, Chieti, Italy.

Gallbladder polyps are protuberances of the gallbladder wall projecting into the lumen. They are usually incidentally found during abdominal sonography or diagnosed on histopathology of a surgery specimen, with an estimated prevalence of up to 9.5% of patients. Read More

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A narrative review of gallbladder adenomyomatosis: what we need to know.

Ann Transl Med 2020 Dec;8(23):1600

Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Prince of Wales Hospital, the Chinese University of Hong Kong, Hong Kong, China.

Gallbladder adenomyomatosis (GA) is increasingly encountered in clinical practice due to increasing use of imagings especially ultrasound (US). Clinicians need to know what is the implication of this condition and its proper management. GA is a degenerative and proliferative disease characterized by excessive epithelial proliferation associated with hypertrophy of muscularis propria. Read More

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December 2020

Imaging based flowchart for gallbladder polyp evaluation.

J Med Imaging Radiat Sci 2021 03 7;52(1):68-78. Epub 2021 Jan 7.

Department of Surgery, Radboud University Medical Centre, the Netherlands.

Background: Preoperative differentiation between neoplastic and nonneoplastic gallbladder polyps, and the subsequent indication for cholecystectomy remains a clinical dilemma. The current 1 cm size threshold for neoplasia is unspecific. The aim of this study was to improve diagnostic work-up for gallbladder polyps using sonographic and MRI characteristics of neoplastic and nonneoplastic polyps. Read More

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Bicameral Gallbladder With Chronic Cholecystitis on Hepatobiliary Scintigraphy.

Clin Nucl Med 2021 Jan;46(1):78-80

Nuclear Medicine, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, Seoul, Republic of Korea.

Bicameral gallbladder, also known as segmental adenomyomatosis, is not a rare benign condition with the lumen divided into 2 interconnected chambers. Here we present 2 interesting cases of the bicameral gallbladder, which shows unremarkable findings on hepatobiliary scintigraphy at first appearance. However, the CT scan revealed that the fundal chamber was not visualized on the scintigraphy unlike the ductal chamber. Read More

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January 2021

Imaging-based algorithmic approach to gallbladder wall thickening.

World J Gastroenterol 2020 Oct;26(40):6163-6181

Department of Radiodiagnosis and Imaging, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India.

Gallbladder (GB) wall thickening is a frequent finding caused by a spectrum of conditions. It is observed in many extracholecystic as well as intrinsic GB conditions. GB wall thickening can either be diffuse or focal. Read More

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October 2020

Incidental finding of heterotopic supradiaphragmatic liver.

J Surg Case Rep 2020 Oct 17;2020(10):rjaa394. Epub 2020 Oct 17.

Department of Surgery, Townsville University Hospital, Townsville 4814, Australia.

Here we describe a case of heterotopic, supradiaphragmatic liver in a 65-year-old woman who was referred for investigation of a soft tissue gallbladder mass. Contrast-enhanced magnetic resonance imaging revealed adenomyomatosis of the gallbladder and supradiaphragmatic accessory liver tissue. This is a remarkably rare normal variant. Read More

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October 2020

[Recent Updates on Diagnosis, Treatment, and Follow-up of Gallbladder Polyps].

Korean J Gastroenterol 2020 09;76(3):102-107

Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.

A gallbladder (GB) polyp is an elevation of the GB mucosa that protrudes into the GB lumen. GB polyps have an estimated prevalence of 0.3-9. Read More

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September 2020

Mass-forming adenomyomatosis in extrahepatic bile duct.

Gastrointest Endosc 2021 02 9;93(2):522-524. Epub 2020 Sep 9.

Department of Surgery, Kurume University School of Medicine, Kurume, Japan; Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan.

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February 2021

Gallbladder Adenomyomatosis in an Infant.

ACG Case Rep J 2020 07 27;7(7):e00433. Epub 2020 Jul 27.

Cleveland Clinic Foundation, Cleveland, OH.

Gallbladder adenomyomatosis is a rare condition that is predominantly seen in adults, and only a few cases have been described in the pediatric population. Although it is generally benign, it may present a diagnostic challenge for physicians. Advances in imaging have led to an increase in its detection. Read More

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Benign gallbladder diseases: Imaging techniques and tips for differentiating with malignant gallbladder diseases.

World J Gastroenterol 2020 Jun;26(22):2967-2986

Department of Radiology, Konkuk University Medical Center, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul 05030, South Korea.

Benign gallbladder diseases usually present with intraluminal lesions and localized or diffuse wall thickening. Intraluminal lesions of the gallbladder include gallstones, cholesterol polyps, adenomas, or sludge and polypoid type of gallbladder cancer must subsequently be excluded. Polyp size, stalk width, and enhancement intensity on contrast-enhanced ultrasound and degree of diffusion restriction may help differentiate cholesterol polyps and adenomas from gallbladder cancer. Read More

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B-mode ultrasonographic diagnosis in gallbladder wall thickening.

J Med Ultrason (2001) 2021 Apr 24;48(2):175-186. Epub 2020 Apr 24.

Department of Gastroenterology, Bantane Hospital, Fujita Health University School of Medicine, 3-6-10, Otobashi, Nakagawa-ku, Nagoya, 454-8509, Japan.

Diseases associated with gallbladder wall thickening include benign entities such as adenomyomatosis of the gallbladder, acute and chronic cholecystitis, and hyperplasia associated with pancreaticobiliary maljunction, and also cancer. Unique conditions such as sclerosing cholecystitis and cholecystitis associated with immune checkpoint inhibitor treatment can also manifest as wall thickening, as in some systemic inflammatory conditions. Gallbladder cancer, the most serious disease that can show wall thickening, can be difficult to diagnose early and to distinguish from benign causes of wall thickening, contributing to a poor prognosis. Read More

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Surgical Choice for Different Types of Gallbladder Adenomyomatosis: An Initial Experience of 20 Years Laparoscopic Cholecystectomy.

Surg Laparosc Endosc Percutan Tech 2020 Apr;30(2):151-155

Department of Biliary and Minimally Invasive Surgery, China Medical University Shengjing Hospital, Shenyang, China.

Objectives: The objective of this study was to compare the difference of clinical biochemical statistics in different types of gallbladder adenomyomatosis (GA). To investigate the different effects of patients between the 3 different types of GA.

Materials And Methods: Retrospective analysis of the clinical data of the adenomyomatosis patients that come from our hospital between 2010 to 2018. Read More

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Chronic inflammation-related radiological findings of gallbladder adenomyomatosis.

Jpn J Radiol 2020 May 18;38(5):463-471. Epub 2020 Feb 18.

Department of Pathology, Daejeon Sun Hospital, Daejeon, South Korea.

Purpose: This study aimed to assess radiological findings of adenomyomatosis advancing to chronic inflammation to differentiate between adenomyomatosis with and without chronic inflammation.

Materials And Methods: We retrospectively identified 79 patients with pathologically proven adenomyomatosis without (n = 10) or with chronic inflammation (n = 69), who underwent computed tomography (CT) and magnetic resonance imaging (MRI) followed by surgery. MRI analysis included evaluation of GB wall-thickening type, presence and location of intramural cysts, and presence of stones. Read More

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Utility of multiple endoscopic techniques in differential diagnosis of gallbladder adenomyomatosis from gallbladder malignancy with bile duct invasion: A case report.

World J Clin Cases 2020 Jan;8(2):464-470

Department of Hepatopancreatobiliary Surgery, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China.

Background: Gallbladder adenomyomatosis (GAM) is a benign lesion, characterized by thickening of the gallbladder wall and a focal mass, which overlap with the features of gallbladder malignancy. Consequently, differential diagnosis of GAM from gallbladder cancer is difficult and approximately 20% of suspected malignant biliary strictures are postoperatively confirmed as benign lesions. Herein, we report a case in which a preoperative diagnosis of GAM was made by a combination of endoscopic and imaging techniques. Read More

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January 2020

Combined Fundal and Segmental Adenomyomatosis of the Gallbladder in a Child: A Rare Case Report.

Case Rep Pediatr 2019 28;2019:2659089. Epub 2019 Nov 28.

Department of Pediatric Surgery, Fukushima Medical University Hospital, 1 Hikarigaoka, Fukushima City, Fukushima 960-1247, Japan.

Adenomyomatosis of the gallbladder (AMG) is characterized by mucosal hyperplasia leading to invagination through the thickened muscle layer, which is relatively common in adults, but is rare in childhood. We report a 12-year-old boy with adenomyomatosis of the gallbladder combined segmental and fundal type. This combined type is rare in adults and is first reported here in childhood. Read More

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November 2019

Role of conventional ultrasonography in the diagnosis of gallbladder polypoid lesions.

Authors:
Shinji Okaniwa

J Med Ultrason (2001) 2021 Apr 11;48(2):149-157. Epub 2019 Dec 11.

Department of Gastroenterology, Iida Municipal Hospital, 438 Yawata-machi, Iida, Nagano, 395-8502, Japan.

The major role of conventional ultrasonography (US) can be divided into three processes: cancer screening, differential diagnosis, and assessment of the depth of tumor invasion. As US is a simple and minimally invasive modality, it is widely used for cancer screening and health checkups. Both gallbladder (GB) polyps and thickened wall of the GB are common US findings. Read More

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Differentiation of gallbladder adenomyomatosis from early-stage gallbladder cancer before surgery.

Ann Hepatobiliary Pancreat Surg 2019 Nov 29;23(4):334-338. Epub 2019 Nov 29.

Department of Surgery, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea.

Backgrounds/aims: This study aimed to compare the perioperative and clinical outcomes in patients undergoing laparoscopic cholecystectomy for gallbladder adenomyomatosis (GBA) or early-stage gallbladder cancer (GBC).

Methods: The perioperative and clinical outcomes of 194 patients diagnosed with GBA and 30 patients diagnosed with GBC who underwent laparoscopic cholecystectomy in our institution from January 2011 to December 2017 were retrospectively compared.

Results: There were no significant differences between the GBA and GBC groups in sex (male:female ratio 1. Read More

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November 2019

Incidentally detected focal fundal gallbladder wall thickening: Differentiation contrast enhanced ultrasound features with high-resolution linear transducers.

Clin Hemorheol Microcirc 2020 ;74(3):315-325

Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China.

Aim: To investigate the value of contrast enhanced ultrasound with high resolution linear transducers (HF-CEUS) for differential diagnosis of focal fundal gallbladder (GB) wall thickening.

Methods: A total of 32 patients with incidentally detected focal fundal GB wall thickening were included. After conventional B mode ultrasound (BMUS) examinations, HF-CEUS were performed with a 7. Read More

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Differential diagnosis of focal gallbladder lesions: The added value of contrast enhanced ultrasound with liner transducers.

Clin Hemorheol Microcirc 2020 ;74(2):167-178

Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China.

Background And Aim: To evaluate the benefits of contrast-enhanced ultrasound (CEUS) with high frequency transducers in characterization of focal gallbladder lesions (FGL).

Material And Methods: From January 2017 to April 2019, 59 FGL detected by B mode ultrasound (BMUS) were examined, first with the low frequency convex transducer (1-5 MHz) and afterwards with high frequency transducer (7.5-12 MHz). Read More

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[Differential diagnosis of gallbladder abnormalities : Ultrasound, computed tomography, and magnetic resonance imaging].

Radiologe 2019 Apr;59(4):328-337

Radiologie, KFJ Spital, Wien, Österreich.

Clinical Issue: Due to the high prevalence of clinically suspected cholecystitis or cholecystolithiasis the gallbladder is one of the organs examined the most by imaging.

Standard Radiological Methods: In most clinical settings ultrasound is the primary imaging method because of its wide availability, speed and superior spatial resolution. In cases of ambiguous findings or potential complications computed tomography (CT) and magnetic resonance imaging (MRI) are used. Read More

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Uncommon Intraluminal Tumors of the Gallbladder and Biliary Tract: Spectrum of Imaging Appearances.

Radiographics 2019 Mar-Apr;39(2):388-412. Epub 2019 Feb 1.

From the Departments of Radiology (A.C., C.L.V., P.N., N.A.H., V.Y., F.H.M.) and Pathology (A.J.B., G.Y.Y.), Northwestern Memorial Hospital, Northwestern University Feinberg School of Medicine, 676 N St. Clair St, Suite 800, Chicago, IL 60611; Department of Radiology, Emory University School of Medicine, Atlanta, Ga (P.K.M.); and Department of Radiology, Mayo Clinic, Scottsdale, Ariz (C.O.M.).

Intraluminal pathologic conditions of the bile ducts and gallbladder are common, most frequently consisting of calculi and adenocarcinoma. In recent years, intraductal papillary neoplasm of the bile ducts (IPN-B), which is analogous to intraductal papillary mucinous neoplasm of the pancreas, has been recognized as a distinct pathologic entity and a precursor lesion to adenocarcinoma of the bile ducts. Intraductal tubulopapillary neoplasm (ITPN) of the bile duct was subsequently described as a distinct pathologic entity. Read More

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A Resected Gallbladder Carcinoma Coexisting With Adenomyomatosis Involving Varied Degrees of Intraepithelial Dysplasia: A Case Report and Literature Review.

Surg Laparosc Endosc Percutan Tech 2019 Aug;29(4):290-296

Department of Clinical Pathology, Kitasato Institute Hospital, Tokyo, Japan.

A 59-year-old asymptomatic man underwent ultrasonography, which revealed gallstones and thickened gallbladder wall. Abdominal computed tomography (CT) showed a slightly swollen bilocular gallbladder and a soft tissue mass in the fundus site. Segmental adenomyomatosis (ADM) was suspected because numerous fundic cystic lesions were seen on magnetic resonance imaging. Read More

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Comet tail artifact on ultrasonography: is it a reliable finding of benign gallbladder diseases?

Ultrasonography 2019 Jul 3;38(3):221-230. Epub 2018 Oct 3.

Department of Radiology, Eulji University Hospital, Daejeon, Korea.

Purpose: The aim of this study was to evaluate whether the comet tail artifact on ultrasonography can be used to reliably diagnose benign gallbladder diseases.

Methods: This retrospective study reviewed the clinical findings, imaging findings, preoperative ultrasonographic diagnoses, and pathological diagnoses of 150 patients with comet tail artifacts who underwent laparoscopic cholecystectomy with pathologic confirmation. The extent of the involved lesion was classified as localized or diffuse, depending on the degree of involvement and the anatomical section of the gallbladder that was involved. Read More

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Correction to: CT diagnosis of gallbladder adenomyomatosis: importance of enhancing mucosal epithelium, the "cotton ball sign".

Eur Radiol 2019 02;29(2):1060

Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.

The original version of this article, published on 09 April 2018, unfortunately contained a mistake. The following correction has therefore been made in the original: The presentation of Fig. 2 was incorrect, "Cotton ball sign" was mistakenly named "Polka-dot sign". Read More

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February 2019