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Biliary cystadenoma (BC) is a benign hepatic cystic tumor with degenerative potential. Hepatic MRI can help guide the diagnosis. Surgical resection is recommended due to the malignant potential of biliary cystadenomas. Only anatomopathological examination of the surgical specimen can establish the definitive diagnosis of BC. The objective of this case report is to enhance our understanding of this disease and contribute to precise diagnosis for optimal management. A 55-year-old woman with a history of hypertension and atrial fibrillation presented to the surgery department with paroxysmal right hypochondrial pain. Ultrasonography (US), computed tomography (CT), and magnetic resonance imaging (MRI) revealed a large septated cystic lesion occupying segments II, III, and IV of the liver. The patient underwent left hepatectomy without incident. The postoperative course was marked by a deep collection opposite the sectional area, which was successfully treated with antibiotics and radiological drainage. The pathological diagnosis confirmed BC without signs of malignancy, and no recurrence was detected post-surgery. The rarity of BC, the absence of specific clinical signs and its potential for malignant transformation, underline the need for sophisticated imaging techniques. However, preoperative radiological diagnosis does not exceed 50 %. The operative decision requires a multidisciplinary discussion between radiologists and surgeons. This case highlights the unavailability of radical surgical treatment in cases of strong preoperative suspicion of BC. The cooperation of the pathologist in the histological diagnosis is crucial. The diagnosis of BC should be considered in cases of multilocular cystic lesions in the liver, particularly in instances of recurrent cysts. Imaging aids in both positive and differential diagnoses. Complete resection is the recommended treatment for any suspected BC. • Rare benign tumor with malignant potential • Case presentation and diagnostic techniques • Multidisciplinary approach and postoperative management • Importance of imaging in diagnosis and treatment planning [ABSTRACT FROM AUTHOR]

Copyright of Revista Colombiana de Gastroenterología is the property of Asociacion Colombiana de Gastroenterologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The article presents information on a study related to the white African lion, which is presented with clinical signs of acute pain and a distended abdomen. It informs that the malformations of intrahepatic biliary structures and the gallbladder have been observed uncommonly in small domestic animals but not in the case of wild animals. It further informs that a number of biliary lesions have been recognized previously in the livers of adult lions, including peribiliary cysts, biliary cystadenomas, polycystic liver and kidney disease.

Abstract: Background and objectives: Intrahepatic biliary cystadenoma and biliary cystadenocarcinoma are extremely rare neoplasms of the liver. They share similar radiological characteristics, and the clinicopathological features are poorly defined. We aim to provide an algorithm for preoperative differentiation of the two diseases. Methods: Patients who underwent liver resection between May 2001 and May 2011 at Peking Union Medical College Hospital with biliary cystadenoma (20 cases) and biliary cystadenocarcinoma (10 cases) were reviewed. Results: Significant differences were shown in age (P =0.030), gender (P =0.002) and symptom duration (P =0.012). Most biliary cystadenomas occurred in women ≤60 years old (85%), whilst most biliary cystadenocarcinomas occurred in older males (50%). Shorter symptom duration indicated a higher risk of biliary cystadenocarcinoma. Arterial blood flow and wall/nodule enhancement tended to be more common in biliary cystadenocarcinoma, but the difference was not significant (P =0.348). A score system was developed. The case-by-case validation and leave-one-out cross-validation showed an accuracy of 95.5% and 90.9%, respectively. The discriminative accuracy for cases from another hospital during the same period was 90.9%. Conclusions: Older age, male gender, and shorter symptom duration are associated with higher possibility of biliary cystadenocarcinoma. Location and blood supply by radiology might be instrumental but still need further verification. [Copyright &y& Elsevier]

Abstract: Biliary tumors are rarely diagnosed in rabbits, and there are very few published case reports of this disease within this group of animals. This case involves an approximately 6-year-old spayed female pet rabbit that was referred for an abdominal mass noted on survey full-body radiographs obtained during an examination after presenting for acute onset anorexia. Otherwise, the patient had an unremarkable history, and physical examination abnormalities were limited to a slightly distended abdomen. Laboratory evaluation revealed an isolated elevation in gamma-glutamyl transpeptidase. Ultrasonography documented a 5.4-cm multicystic, intrahepatic mass with hyperechoic septations. The mass was surgically resected and described histopathologically as a proliferation of ectatic duct structures with a simple epithelial lining, supporting a diagnosis of biliary cystadenoma. The rabbit recovered without incident and was doing well 15 months postsurgery. The case is presented with a review of all reported cases and discussion of the potential origins of this unusual tumor in the rabbit. Surgery is recommended in rabbits that are diagnosed with a biliary tumor. [ABSTRACT FROM AUTHOR]

Copyright of West Indian Medical Journal is the property of West Indian Medical Journal (WIMJ) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The article presents a clinical and diagnostic study regarding the case of biliary cystadenoma in a Maltese dog. The dog under study suffered from intermittent vomiting and diarrhea and it was found out that it has a single, solitary, lobulated cystic mass in the liver. The mass was removed by surgical hepatic resection and the dog underwent histological examination. Based from the result of the examination, it was revealed that a multilocular cyst was lined by cuboidal to columnar epithelial cells.

Abstract: A 6-year-old female nulliparous Dutch Rabbit (Oryctolagus cuniculus) was presented in shock status with a history of abdominal distention, inappetance, lethargy, polydipsia, diarrhea and weight loss since 2 weeks ago. There was no breeding history. Radiographic survey showed increased soft tissue opacity dorsal to the urinary bladder and ventral to the colon on the lateral view consistent with uteromegaly and severe intestinal distention resembling intussusceptions. Conservative treatment was failed and the animal died. In necropsy, ileocecal intussusception was noted as the main death factor. Thickened uterine endometrium in both horns was observed and the uterus was filled with mucoid fluid. Both ovaries were multilobulated and distended. On the other hand, a small cyst sized 1.5 × 2.5 cm was diagnosed on the liver surface. Several samples were obtained from lesions for histopathological evaluation. Histopathologically, dilated cystic glands of variable size lined by densely packed epithelium and hyperplasia of the endometrium resulting in irregular folds or papillar projection into the lumen were evident and the sections of ovaries revealed ovarian luteoma that composed of polyhedral cells with pale stained vacuolated cytoplasm, centrally located nuclei with distinct cytoplasmic borders and the cytoplasm of cells contain lipid droplet. The occurrence of biliary cyst adenoma was confirmed by microscopic examination of the mass that composed of multicystic space in different sizes lined by flattened to cuboidal biliary epithelium with papillary projections. These cysts were seperated by variable amount of connective tissue. The lack of postmortem investigations in aged rabbits reduced the incidence of neoplastic disease diagnosis in this species. Whereas uterine adenecarcinoma and lymphosarcoma were commonly reported in rabbits, luteoma and biliary cyst adenoma that are well described in this case report were uncommon in rabbit medicine. [Copyright &y& Elsevier]

Abstract: Biliary cystadenoma is a rare tumor, often encountered as an incidental finding during imaging for other indications. As the lesion is considered pre-malignant, surgical management is advocated, hence a pre-operative differential diagnosis is important. Diagnosis by biopsy or fine needle aspiration (FNA) is sometimes inaccurate and carries a risk of cyst rupture and of seeding, hence imaging is a major contributor to the management decision. Traditionally, ultrasound and CT are considered the two most popular modalities in contributing to a diagnosis, with little emphasis placed on contrast-enhanced ultrasound (CEUS). Two cases are presented where CEUS clearly demonstrated vascularity within the septations of biliary cystadenomas, which could be seen in the arterial as well as porto-venous phases. [Copyright &y& Elsevier]