Platynosomum fastosum (Digenea: Dicrocoeliidae) infection in a domestic cat in northeastern Brazil: high fluke burden and associated lesions<br> Infecção por Platynosomum fastosum (Digenea: Dicrocoeliidae) em gato doméstico no nordeste do Brasil: alta carga parasitária e lesões associadas<br>doi:10.12662/2317-3076jhbs.v4i3.775.p198-202.2016

Introduction: Platynosomum fastosum is a dicrocoeliid fluke that infects birds and mammals, especially wild and domestic cats. Case report: A middle-aged male domestic cat was euthanized and examined. Its clinical features had included apathy, emaciation, hepatomegaly and mild jaundice on the mucosae. At necropsy, we noticed enlarged liver and dilated gallbladder. After opening the gallbladder lengthwise, multiple whitish flattened ellipsoidal structures were observed and identified as P. fastosum. The larger parasites were found in gallbladder, with significant different size from cystic duct and intrahepatic biliary ducts (p<0.05). Histopathological analysis revealed fluke-induced suppurative cholecystitis and chronic cholangitis. Precursor lesions of cholangiocarcinoma were reported. Conclusion: This report was part of the first prevalence survey of P.fastosum in municipality of Maracanaú, state of Ceará, northeastern Brazil.

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Spirometra mansonoides from a domestic cat in northeastern Brazil: case report

Acta Veterinaria Brasilica ◽

10.21708/avb.2020.14.3.9389 ◽

2020 ◽

Vol 14 (3) ◽

pp. 170-173

Author(s):

Vitória Figueiredo Lima ◽

Higina Moreira Melo ◽

Sheyla Xavier de Sousa ◽

Thiago da Silva Brandão ◽

Antônio Fernando de Melo Vaz

Keyword(s):

Case Report ◽

Domestic Cat ◽

Northeastern Brazil

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Absence of Cystic Duct: a case report

International Journal of Medicine in Developing Countries ◽

10.24911/ijmdc.51-1608189265 ◽

2021 ◽

pp. 1

Author(s):

Talal Al-Shahri ◽

Wassem Al-Qalqali

Keyword(s):

Case Report ◽

Cystic Duct

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Primary pancreatic glomus tumor invading into the superior mesenteric vein: a case report

Surgical Case Reports ◽

10.1186/s40792-020-01058-7 ◽

2020 ◽

Vol 6 (1) ◽

Author(s):

Ichiro Tamaki ◽

Yohei Hosoda ◽

Hironobu Sasano ◽

Yu Sasaki ◽

Hidenori Kiyochi ◽

...

Keyword(s):

Case Report ◽

Tumor Cells ◽

Solid Tumor ◽

Superior Mesenteric Vein ◽

Glomus Tumor ◽

Small Cells ◽

Histopathological Analysis ◽

Glomus Tumors ◽

Mesenteric Vein ◽

Direct Invasion

Abstract Background Glomus tumors are subcutaneous tumors arising from glomus bodies, thermoregulatory components of the skin. These tumors could occur in visceral organs where glomus bodies are not normally present. Herein, we report a case of primary pancreatic glomus tumor with aggressive direct invasion into the superior mesenteric vein (SMV). To the best of our knowledge, this is the second case report of a glomus tumor arising in the pancreas. Case presentation A 46-year-old woman was referred to our hospital due to vomiting with epigastric and back pain. Dynamic-CT revealed a well-circumscribed hypervascular mass, measuring 37 mm in its maximal diameter involving the pancreatic head. Both CT and endoscopic ultrasonography (EUS) revealed direct invasion into the SMV and radiologically suspected tumor thrombus. Biopsy sample obtained by EUS-guided fine needle aspiration revealed proliferation of small cells, round-to-oval tumor cells with round nuclei and scant cytoplasm. A histological diagnosis of pancreatic neuroendocrine tumor, G1 was initially considered. Therefore, subtotal stomach-preserving pancreatoduodenectomy using Child-II reconstruction was subsequently performed. Her SMV was resected and reconstructed due to extensive tumor involvement. Subsequent histopathological analysis revealed solid tumor cells proliferation that comprised oval-shaped nuclei and scant cytoplasm around disorganized or slit-shaped vessels in hematoxylin–eosin-stained slides. Immunohistochemical analysis then demonstrated positive immunoreactivity for smooth muscle actin, vimentin, and CD34, but negative for chromogranin A, synaptophysin, CD56, and signal transducer and activator of transcription 6. Based on these histological findings of resected specimens, the lesion was subsequently diagnosed as a primary pancreatic glomus tumor harboring direct invasion into the SMV. Her postoperative course was uneventful and annual surveys for the following 4 years post-op detected no clinical signs of recurrence. Conclusions We report a very rare case of glomus tumor of the pancreas accompanied by venous invasion. Curative surgical resection is the best treatment option for pancreatic glomus tumors. Although pancreatic glomus tumor is rare, it should be taken into consideration in the differential diagnosis of a pancreatic solid tumor with hypervascularity.

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Large intraperitoneal lipoleiomyoma in a pre-menopausal woman: a case report

World Journal of Surgical Oncology ◽

10.1186/s12957-021-02256-9 ◽

2021 ◽

Vol 19 (1) ◽

Author(s):

Sara L. Schaefer ◽

Amy L. Strong ◽

Sheena Bahroloomi ◽

Jichang Han ◽

Michella K. Whisman ◽

...

Keyword(s):

Differential Diagnosis ◽

Smooth Muscle ◽

Case Report ◽

Smooth Muscle Actin ◽

Abdominal Mass ◽

Histopathological Analysis ◽

Menopausal Woman ◽

En Bloc ◽

Cross Sectional

Abstract Background Lipoleiomyoma is a rare, benign variant of the commonplace uterine leiomyoma. Unlike leiomyoma, these tumors are composed of smooth muscle cells admixed with mature adipose tissue. While rare, they are most frequently identified in the uterus, but even more infrequently have been described in extrauterine locations. Case presentation We describe a case report of a 45-year-old woman with a history of in vitro fertilization pregnancy presenting 6 years later with abdominal distention and weight loss found to have a 30-cm intra-abdominal lipoleiomyoma. While cross-sectional imaging can narrow the differential diagnosis, histopathological analysis with stains positive for smooth muscle actin, desmin, and estrogen receptor, but negative for HMB-45 confirms the diagnosis of lipoleiomyoma. The large encapsulated tumor was resected en bloc. The patients post-operative course was uneventful and her symptoms resolved. Conclusions Lipoleiomyoma should be considered on the differential diagnosis in a woman with a large intra-abdominal mass. While considered benign, resection should be considered if the mass is symptomatic, and the diagnosis is unclear or there is a concern for malignancy.

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Do prairie voles (Microtus ochrogaster) change their activity and space use in response to domestic cat (Felis catus) excreta?

Mammalia ◽

10.1515/mammalia-2020-0012 ◽

2020 ◽

Vol 0 (0) ◽

Author(s):

Brian Keane ◽

Phillip J. Long ◽

Yasmeen Fleifil ◽

Nancy G. Solomon

Keyword(s):

Space Use ◽

Felis Catus ◽

Domestic Cat ◽

Microtus Ochrogaster ◽

Activity Levels ◽

Domestic Cats ◽

Prairie Voles ◽

Natural Habitats ◽

Odor Cues ◽

Risk Of Predation

AbstractBehavioral changes that reduce the risk of predation in response to predator-derived odor cues are widespread among mammalian taxa and have received a great deal of attention. Although voles of the genus Microtus are staples in the diet of many mammalian predators, including domestic cats (Felis catus), there are no previous studies on vole space utilization and activity levels in response to odor cues from domestic cats. Therefore, the objective of our study was to investigate responses of adult prairie voles (Microtus ochrogaster) living in semi-natural habitats to odor cues from domestic cat excreta. Contrary to expectations, neither adult males or females showed significant changes in space use or willingness to enter traps in response to cat odors. One hypothesis to explain our results are that prairie voles have not co-evolved with domestic cats long enough to respond to their odors. Other possible explanations include whether levels of odors in the environment were sufficient to trigger a response or that the perceived risk of predation from odor cues alone did not outweigh relative costs of changing space use and activity levels. Future studies should consider multiple factors when determining what cues are sufficient to elicit antipredatory behavior.

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Testicular effects of a postnatal GnRH antagonist in domestic cats

Acta Veterinaria Hungarica ◽

10.1556/004.2021.00052 ◽

2021 ◽

Keyword(s):

Gnrh Antagonist ◽

Domestic Cat ◽

Domestic Cats ◽

Low Concentrations ◽

Cellular Debris ◽

Reduced Height ◽

Faecal Samples ◽

Luminal Area ◽

Germinal Cells

Abstract The aim of this study was to describe the histological effects of two high postnatal doses of the potent third-generation GnRH antagonist, acyline in the domestic cat testicle. Secondly, the physical, endocrine, and steroidogenic findings of this pharmaceutical protocol are also reported. Twelve postnatal littermate male kittens were administered acyline in a dose of 2.2 mg/100 g SC weekly for 2 weeks (ACY; n = 6), or placebo (PL; n = 6). All the animals were followed up until puberty when they were castrated. Serial faecal samples were collected until the age of 10 weeks for testosterone (T) measurement. The kittens achieved puberty without either age (236.5 ± 19.7 vs. 221.7 ± 23.7 days) or body weight (3.05 ± 0.15 vs. 2.78 ± 0.28 kg, P > 0.05) differences between ACY and PL, respectively. Acyline suppressed faecal T concentrations for 3 weeks (P < 0.01). From the fourth week on, both groups had low concentrations up to the end of the follow-up period (P > 0.05). Histological assessment of the testes showed that ACY cats presented a reduced height of the epithelium (P < 0.01) due to the diminished number of germinal cells accompanied by an enlarged luminal area (P < 0.01) with cellular debris (P < 0.01). The immunostaining of P450c17 also appeared partially diminished in ACY testes.

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Intracholecystic papillary-tubular neoplasm in a patient with choledochal cyst and anomalous pancreaticobiliary junction: case report

BJR|case reports ◽

10.1259/bjrcr.20180079 ◽

2019 ◽

Vol 5 (2) ◽

pp. 20180079

Author(s):

Marta Reis de Sousa ◽

Inês Santiago ◽

Maria J Barata ◽

Mireia Castillo ◽

Celso Matos

Keyword(s):

Case Report ◽

Bile Duct ◽

Gastric Adenocarcinoma ◽

Choledochal Cyst ◽

Histopathological Analysis ◽

Gallbladder Neoplasms ◽

Choledochal Cysts ◽

Bile Duct Dilatation ◽

Duct Dilatation ◽

Anomalous Pancreaticobiliary Junction

A 75-year-old female incidentally presented with an enhancing intraluminal gallbladder mass, main bile duct dilatation and anomalous pancreaticobiliary junction (APBJ) during the staging of gastric adenocarcinoma. Histopathological analysis confirmed the diagnosis of intracholecystic papillary-tubular neoplasm. Intracholecystic papillary-tubular neoplasms (ICPN) of the gallbladder are rare gallbladder neoplasms, defined as intramucosal, preinvasive, exophytic, mass forming lesions. An association between choledochal cysts and anomalous pancreaticobiliary junction with gallbladder neoplasms is well known, and this case potentially illustrates gallbladder carcinogenesis related to these biliary anomalies.

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