scholarly journals Concurrent infection of Taenia taeniaeformis and Isospora felis in a stray kitten: a case report

2009 ◽  
Vol 54 (No. 2) ◽  
pp. 81-83 ◽  
Author(s):  
L.D. Singla ◽  
G.S. Aulakh ◽  
R. Sharma ◽  
P.D. Juyal ◽  
J. Singh
Keyword(s):  
Histopathological Examination ◽  
Present Report ◽  
Acute Diarrhoea ◽  
Necrotic Enteritis ◽  
Concurrent Infection ◽  
Intermediate Hosts ◽  
Bandicota Bengalensis ◽  
Cysticercus Fasciolaris ◽  
Electron And Light Microscopy ◽  
Taenia Taeniaeformis

The present report describes a unique case of acute diarrhoea, dehydration and weakness in a stray female kitten due to concurrent infection of <i>Taenia taeniaeformis</i> and <i>Isospora felis</i>. Death occured before any treatment could be attempted and postmortem examination revealed the presence of live tapeworms embedded in the mucosa of the small intestine. The tapeworms were identified as <i>Taenia taeniaeformis</i> by Scanning Electron and Light microscopy. The uterus of the tapeworms was filled with eggs. The intestinal contents were yellow in colour and upon their examination by faecal floatation the presence of <i>Isospora</i> oocysts was revealed. On histopathological examination, necrotic enteritis along with endogenous tissue stages of <i>Isospora</i> spp. were observed in the intestine. The other cats in the area were found to pass eggs and/or gravid segments of <i>T. taeniaeformis</i> in their faeces. Infection with the metacestodes (<i>Cysticercus fasciolaris</i>) of this indirectly transmitted parasite was found in the liver of the intermediate hosts, i.e., the wild rats <i>Bandicota bengalensis</i>.

INTERACTIONS BETWEEN CYSTICERCUS FASCIOLARIS AND COMMON RATS

2017 ◽  
Vol 23 (2) ◽  
Author(s):  
SHASHI KIRAN
Keyword(s):  
Granulation Tissue ◽  
Larval Stage ◽  
Histopathological Examination ◽  
Sylvatic Cycle ◽  
Mature Larva ◽  
Hepatic Cysts ◽  
Cysticercus Fasciolaris ◽  
Taenia Taeniaeformis ◽  
Relationship Of ◽  
The Relationship

The objective of this study was to determine the relationship of C. fasciolaris with common rats. Cysticercus fasciolaris is the larval stage of Taenia taeniaeformis . Development of metacestodes ( Cysticercus fasciolaris) occur in the liver of rodents. An urban and a sylvatic cycle occurs. A total of 40 liver specimens of rats were examined. Histopathological examination revealed the presence of multiple hepatic cysts, and the C. fasciolaris larva was surrounded by granulation tissue. Large and separated ûbroblasts in different orientations with some neoplastic changes were seen in advanced hepatic cysticercosis. The bladder involved the larva and large chamber containing the small chamber and opalescent fluid. The scolex of the mature larva is distinctly large, bearing four lateral distinct suckers, a rostellum armed with double, and alternating rows of hooks.

scholarly journals Natural Cysticercus fasciolaris infection in rodents from a rural area in Yucatan, Mexico

2019 ◽  
Vol 6 (2) ◽  
Author(s):  
Rodrigo A. Medina-Pinto ◽  
Marco Antonio Torres-Castro ◽  
Rolando A. Medina-Pinto ◽  
Manuel E. Bolio-González ◽  
Roger I. Rodríguez-Vivas
Keyword(s):  
Rural Area ◽  
Deciduous Forest ◽  
Rattus Rattus ◽  
Natural Occurrence ◽  
Intermediate Hosts ◽  
Wild Rodent ◽  
Transmission Cycle ◽  
Cysticercus Fasciolaris ◽  
Taenia Taeniaeformis ◽  
Liver Infection

Cysticercus fasciolaris is the larval stage of Taenia taeniaeformis, a parasite that predominantly affects felines. It, however, has zoonotic significance since humans can be accidental hosts. Rodents and lagomorphs act as Intermediate hosts in this parasite’s life cycle. The aim of this study was to determine the natural occurrence of infection with Cysticercus fasciolaris in rodents from a rural area in Yucatan, Mexico. Rodents were captured in 40 dwellings and two neighboring areas of low deciduous forest. A total of 153 individuals of seven different species were captured: 65 Rattus rattus (42.5%), 44 Mus musculus (28.8%), 22 Heteromys gaumeri (14.4%), 11 Ototylomys phyllotis (7.2%), 9 Peromyscus yucatanicus (5.9%), 1 Peromyscus leucopus (0.6%), and 1 Sigmodon hispidus (0.6%). All animals were examined for evidence of parasitic liver infection. Rattus rattus was the only species to present positive Cysticercus fasciolaris infection (18.5%, 12/65). We thus concluded that there was no evidence of a transmission cycle with wild rodent species.

Canine Parvovirus Infections in Taiwanese Pangolins (Manis pentadactyla pentadactyla)

2021 ◽  
pp. 030098582110021
Author(s):  
Yen Chi Chang ◽  
Zhi Yi Lin ◽  
Yan Xiu Lin ◽  
Kuei Hsien Lin ◽  
Fang Tse Chan ◽  
...  
Keyword(s):  
Nucleic Acid ◽  
Internal Control ◽  
Mononuclear Cells ◽  
Histopathological Examination ◽  
Domestic Animals ◽  
Canine Parvovirus ◽  
Necrotic Enteritis ◽  
Intestinal Lesions ◽  
Manis Pentadactyla ◽  
Systemic Infections

Canine parvovirus type 2 (CPV-2) is among the most important and highly contagious pathogens that cause enteric or systemic infections in domestic and nondomestic carnivores. However, the spillover of CPV-2 to noncarnivores is rarely mentioned. Taiwanese pangolins ( Manis pentadactyla pentadactyla) are threatened due to habitat fragmentation and prevalent animal trafficking. Interactions between Taiwanese pangolins, humans, and domestic animals have become more frequent in recent years. However, information about the susceptibility of pangolins to common infectious agents of domestic animals has been lacking. From October 2017 to June 2019, 4 pangolins that were rescued and treated in wildlife rescue centers in central and northern Taiwan presented with gastrointestinal signs. Gross and histopathological examination revealed the main pathologic changes to be necrotic enteritis with involvement of the crypts in all intestinal segments in 2 pangolins. By immunohistochemistry for CPV-2, there was positive labeling of cryptal epithelium throughout the intestine, and immunolabeling was also present in epidermal cells adjacent to a surgical amputation site, and in mononuclear cells in lymphoid tissue. The other 2 pangolins had mild enteritis without crypt involvement, and no immunolabeling was detected. The nucleic acid sequences of polymerase chain reaction (PCR) amplicons from these 4 pangolins were identical to a Chinese CPV-2c strain from domestic dogs. Quantitative PCR revealed a higher ratio of CPV-2 nucleic acid to internal control gene in the 2 pangolins with severe intestinal lesions and positive immunoreactivity. Herein, we present evidence of CPV-2 infections in pangolins.

scholarly journals Bilateral ovarian dysgerminoma with metastasis in female dog's mesenteric lymph node: a case report

2021 ◽  
Vol 1 (2) ◽  
pp. 32-41
Author(s):  
Edgar Tavares de Assis-Neto ◽  
Daniel de Araújo Viana ◽  
Márcio César Vasconcelos Silva
Keyword(s):  
Lymph Node ◽  
Histopathological Examination ◽  
Present Report ◽  
Malignant Neoplasm ◽  
Abdominal Distension ◽  
Exploratory Laparotomy ◽  
Incisional Biopsy ◽  
Mesenteric Lymph ◽  
Chemotherapy Protocol ◽  
Ovarian Dysgerminoma

Dysgerminoma is a rare malignant neoplasm, associated with hormonal dysfunctions, which occurs in canine and feline females from middle age to elderly, without racial predisposition. In the present report, we described a case of ovarian dysgerminoma in a dog, only abdominal distension, persistent vulvar bloody discharge and apathy. The animal in question underwent exploratory laparotomy, where general neoformations were detected in the ovaries, and a lymph node with abnormal characteristics was also found. Therefore, surgery for ovariosalpingoisterectomy and puncture of a fragment of the lymph node altered for incisional biopsy was performed. The diagnosis was made through histopathological examination of the ovaries of the fragment derived from the lymph node, the result of which indicated the presence of dysgerminoma in both ovaries and in the lymph node, characterizing a metastasis. In view of this result, the chemotherapy protocol with the association of carboplatin and vinblastine was instituted, which proved to be effective and not very toxic to the animal, with no clinical sign of metastasis being identified after its use.

scholarly journals Giant Muscle Invasive Dermatofibroma Clinically Mimicking a Malignant Tumor

2019 ◽  
Vol 2019 ◽  
pp. 1-4
Author(s):  
Hideyuki Kinoshita ◽  
Takeshi Ishii ◽  
Hiroto Kamoda ◽  
Toshinori Tsukanishi ◽  
Sumihisa Orita ◽  
...  
Keyword(s):  
Malignant Tumors ◽  
Histopathological Examination ◽  
Present Report ◽  
Wide Resection ◽  
Large Size ◽  
Muscle Invasive ◽  
Muscle Invasion ◽  
The Right ◽  
Slow Growing ◽  
Muscle Invasive Tumor

Dermatofibromas are common benign fibrohistiocytic lesions, usually appearing as slow growing firm dermal nodules with a predilection for the extremities (mostly the lower legs). They are found mostly in middle-aged women and are usually smaller than 2 cm in diameter. Giant dermatofibromas exceeding 5 cm in diameter are rare. In recent years, reports have suggested a relationship between the primary size of dermatofibromas and rates of local recurrence and metastases after surgery. This relationship is however debated. The present report describes the case of a giant muscle invasive tumor in a 51-year-old female patient who presented with a large ulcerated mass in the right upper arm. The tumor appeared clinically malignant, measuring approximately 12 cm × 6 cm in size, with ulceration and invasion of surrounding muscle. Wide resection of the tumor was performed with myocutaneous flap-plasty. Histopathological examination showed evidence of a dermatofibroma. No recurrence, metastases, or other complications were noted at 5 years after surgery. The present case demonstrates that although dermatofibromas are essentially benign, they may present with atypical features including large size, ulceration, and muscle invasion, clinically mimicking malignant tumors.

The occurrence of the larval cestode Cysticercus fasciolaris in rodent populations from the Cuxtal ecological reserve, Yucatan, Mexico

2011 ◽  
Vol 85 (4) ◽  
pp. 458-461 ◽  
Author(s):  
R.I. Rodríguez-Vivas ◽  
J.A. Panti-May ◽  
J. Parada-López ◽  
S.F. Hernández-Betancourt ◽  
H.A. Ruiz-Piña
Keyword(s):  
Larval Stage ◽  
Wild Species ◽  
Univariate Analysis ◽  
Rattus Rattus ◽  
Adult Males ◽  
Intermediate Hosts ◽  
Animal Populations ◽  
Cysticercus Fasciolaris ◽  
Ecological Reserve ◽  
Rodent Populations

AbstractCysticercus fasciolaris is the larval stage of the cestode Taenia taeniaeformis, whose definitive hosts are mainly cats. This larval stage uses a wide variety of small rodents, and occasionally birds and humans, as intermediate hosts. In the Yucatan, there are no reports of the presence of this cestode in animal populations. The aim of this study was to evaluate the occurrence of C. fasciolaris in rodent populations from the Cuxtal ecological reserve, Yucatan, Mexico. Trapping of rodents was conducted from October 2009 to April 2010 in 40 households in Molas, in which Sherman traps were placed both inside and outside backyards. Rodents were dissected to inspect the liver for the presence of the worm. To determine risk factors associated with infection, univariate analysis was performed using sex, age, species, trapping site, and season as independent variables. Variables with a P value <  0.2 were analysed using a logistic regression model. In this study, 411 individuals of six rodent species were trapped; Mus musculus was the most abundant (78%), followed by Rattus rattus (13%) and the wild species Peromyscus yucatanicus, Ototylomys phyllotis,Heteromys gaumeri and Reithrodontomys gracilis (9%). Only 7.5% (n = 31) of M. musculus and R. rattus were infected with C. fasciolaris (demonstrated by the presence of liver cysts) with a prevalence of 9.0% and 3.5%, respectively. Both adults and male mice were 4.33 and 3.46 (OR values) times more likely to have C. fasciolaris than juveniles and females respectively. We can conclude that in the Cuxtal Reserve, Yucatan, Mexico, the prevalence of C. fasciolaris is higher in M. musculus, and that adult males had a higher probability of infection. Wild species, mainly P. yucatanicus, were not found to be infected with the cestode, but its presence in the backyards of households could result in a potential risk of acquiring this infection.

scholarly journals Cathaemasia hians infection in Black stork in Slovakia: morphological and histopathological study

2015 ◽  
Vol 52 (4) ◽  
pp. 316-322 ◽  
Author(s):  
A. Königová ◽  
G. Hrčková ◽  
L. Molnár ◽  
P. Major ◽  
M. Várady
Keyword(s):  
Inflammatory Response ◽  
Lamina Propria ◽  
Histopathological Examination ◽  
Fibrous Tissue ◽  
Mechanical Damage ◽  
Histopathological Study ◽  
Intermediate Hosts ◽  
Tissue Samples ◽  
Morphological Alterations ◽  
Black Stork

SummaryCathaemasia hians is an obligate trematode parasite of Black storks that are on the List of protected birds in Europe. In the present study, adult trematodes were isolated from the Black stork post mortem and morphological study revealed C. hians species. In total, 10 worms were found in the oesophagus and the ventriculus of the bird. Histopathological examination of the tissue samples of oesophagus, proventriculus and ventriculus was performed on paraffin sections using a set of staining procedures. The sporadic lesions were seen in the tela submucosa of oesophagus containing connective tissue mast cells, eosinophils and heterophils and some foci were surrounded by the fibrous tissue. In addition, a few inflammatory nodules had larval-like material inside, probably being of the same species. There were no visible morphological alterations in the epithelial layer of lamina propria mucosae of proventriculus, rich in goblet cells as well as in the tela submucosa. Majority of trematodes were localized in the ventriculus, where the lamina propria mucosae was damaged or disrupted sporadically. In these sites, in the tela submucosa, a various food-originated inorganic/organic material and eggs of C. hians were deposited, stimulating a weak inflammatory response. Nodules containing larvae were not observed in any of ventriculus tissue layers. This study demonstrated, for the first time, infection with adults of C. hians trematode in the Black stork nesting in Slovakia. The presence of larvae and eggs in the tissues of the upper gastrointestinal tract of bird was associated with mild inflammatory response but feeding behaviour of adult worms in the ventriculus probably contributed to the enhanced susceptibility of the lamina propria mucosae to mechanical damage by inorganic material. Although larval stages have not yet been documented in the intermediate hosts in Slovakia, our report indicates that the life cycle of C. hians might occur in Central Europe.

MUCINOUS LOW-GRADE ADENOCARCINOMA ARISING IN AN INTRACRANIAL ENTEROGENOUS CYST

Neurosurgery ◽  
2008 ◽  
Vol 62 (4) ◽  
pp. E972-E973 ◽  
Author(s):  
Marco Gessi ◽  
Federico G. Legnani ◽  
Emanuela Maderna ◽  
Cecilia Casali ◽  
Carlo L. Solero ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Malignant Transformation ◽  
Histopathological Examination ◽  
Present Report ◽  
Cranial Nerves ◽  
Residual Tumor ◽  
Magnetic Resonance Imaging Scan ◽  
Low Grade ◽  
Resonance Imaging

Abstract OBJECTIVE Enterogenous cysts (ECs) of the central nervous system are developmental malformations that occur in the spinal canal, posterior fossa, or cerebral hemispheres. They are usually benign lesions, and malignant transformation is rare. To date, only three cases of malignant transformation have been reported in the literature. We present a case of a cerebellopontine EC showing foci of epithelial dysplasia and malignant transformation into a low-grade papillary mucinous adenocarcinoma. CLINICAL PRESENTATION A 25 year-old man with a 6-year history of hypoacusia presented to our department with facial nerve deficit, visual disturbances, and gait instability. A magnetic resonance imaging scan demonstrated a multiloculated cerebellopontine angle cyst with supratentorial hydrocephalus. INTERVENTION A retrosigmoidal approach was used to achieve cyst removal. This was followed several months later by ventriculoperitoneal shunt placement. The cyst was adherent to the brainstem, cranial nerves, and vessels, and it resembled a thin encapsulated structure filled with mucinous-like substance. No solid component was identified. Histopathological examination revealed an EC with foci of malignant transformation in a mucinous papillary adenocarcinoma. Magnetic resonance imaging was performed 5 months postoperatively due to progressive clinical worsening; this scan revealed lesion recurrence with severe brainstem compression. Emergency surgery was performed, and a large decompression was achieved. Subsequent follow-up computed tomographic scans showed progression of the residual tumor. The patient's neurological condition rapidly worsened, ultimately resulting in death. CONCLUSION The present report suggests that a careful histological examination of all ECs after surgery should be made to exclude dysplastic foci or carcinomatous transformation. Although the clinical behavior of ECs with malignant trasformation is unpredictable, surgery remains the treatment of choice. The use of possible adjuvant chemo- or radiotherapy has not been established.

scholarly journals Cysticercus fasciolaris in Brown Rats (Rattus norvegicus) in Grenada, West Indies

2017 ◽  
Vol 2017 ◽  
pp. 1-4 ◽  
Author(s):  
Ravindra Sharma ◽  
Keshaw Tiwari ◽  
Kristen Birmingham ◽  
Elan Armstrong ◽  
Andrea Montanez ◽  
...  
Keyword(s):  
Larval Stage ◽  
Rattus Norvegicus ◽  
West Indies ◽  
Small Rodents ◽  
Residential Areas ◽  
Adult Rats ◽  
Significant Difference ◽  
Cysticercus Fasciolaris ◽  
Taenia Taeniaeformis ◽  
Single Larva

Cat is the definitive host of Taenia taeniaeformis (T. taeniaeformis). Cysticercus fasciolaris (C. fasciolaris), the larval stage of T. taeniaeformis, develops in small rodents which act as intermediate host. The aim of this study was to estimate the prevalence of C. fasciolaris in brown rats (Rattus norvegicus) in the densely human populated parishes, St. George’s and St. David’s of Grenada, West Indies. One hundred and seventy rats were trapped near the residential areas from May to July, 2017 and examined for C. fasciolaris in their liver. Of the 170 rats 115 (67.6%, CI 95% from 60.1 to 74.6) were positive for the larval stage of T. taeniaeformis. One to three cysts were observed in each liver, containing a single larva in each cyst. The prevalence was 77.9% in St. George and 59.1% in St. David which is a significant difference (p<0.05) between the two parishes under study. Based on gender, prevalence in males was 60.9% and females 74.7%. Significant difference was observed between young and adult rats (p=0.03). Prevalence in young rats was 45.0% compared to adults (70.7%). Further study of risk assessment in the cat population in areas of the present research is strongly suggested.

scholarly journals Diode Laser-Assisted Surgical Therapy for Early Treatment of Oral Mucocele in a Newborn Patient: Case Report and Procedures Checklist

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Marina Consuelo Vitale ◽  
Maria Francesca Sfondrini ◽  
Giorgio Alberto Croci ◽  
Marco Paulli ◽  
Lorenzo Carbone ◽  
...  
Keyword(s):  
Case Report ◽  
Diode Laser ◽  
Continuous Wave ◽  
Histopathological Examination ◽  
Present Report ◽  
Wave Mode ◽  
Clinical Procedures ◽  
Lidocaine Gel ◽  
Mucous Cyst ◽  
Continuous Wave Mode

Mucocele (also known as ranula or salivary gland mucous cyst) of the newborn is a lesion present on the intraoral cavity, with the potential to interfere with respiration and feeding. In the present report, a case of mucocele in a 4-month female patient has been described. As conventional surgery can be followed by several complications such as intraoperative bleeding, difficulties in wound healing, and maintenance of sterility during surgery, in the present case, the use of diode laser has been planned. A topic anesthesia with lidocaine gel was performed. A diode laser (810 nm wavelength, continuous wave mode, power output of 3 watt, and 0.4 mm diameter fiber optic) was set for excising the lesion. The tip was directed at an angle of 10 to 15°, moving around the base of the lesion with a circular motion. The procedure was completed in 3 minutes. The patient was visited with a follow-up of 2 weeks and 4 months after excision. The intraoral wound healed without complications, and no signs of infection or mass recurrence were noted. The histopathological examination confirmed the diagnosis of mucocele. On the basis of the results of the present case report, the use of diode laser can be easily performed also in a noncompliant newborn patient for successful excision of mucocele lesions, and checklist of clinical procedures has been described.

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