Submandibular hydatid cyst caused by <i>Echinococcus oligarthrus</i>

Sahni, J. K.; Jain, Manisha; Bajaj, Yogesh; Kumar, Virender; Jain, Anubhav

doi:10.1258/0022215001905904

Cited by 21 publications

(24 citation statements)

References 3 publications

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“…In this case, echinococcosis of the submandibular salivary gland did not appear as a cystic mass inside the gland, as has been reported by other authors 2,5,8 . On the contrary, the cyst was confined in the duct of Wharton and calcification in the periphery of the cyst reinforced the clinical impression of a salivary calculus obliterating the duct of the submandibular gland.…”

Section: Discussionsupporting

confidence: 87%

Hydatid cyst in the duct of the submandibular gland

Georgopoulos

Korres²,

Riga³

et al. 2007

International Journal of Oral and Maxillofacial Surgery

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Section: Discussionsupporting

confidence: 87%

Hydatid cyst in the duct of the submandibular gland

Georgopoulos

Korres²,

Riga³

et al. 2007

International Journal of Oral and Maxillofacial Surgery

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“…In the patient in Suriname (a 6-year-old boy), a large fluid-filled cyst (2.7 by 3.2 cm, filled with 10 ml of fluid) surrounded by a thick fibrotic capsule was located at the apex of the orbit and had caused exophthalmus, extensive chemosis, mydriasis, other symptoms, and blindness of the affected eye (11). In two patients with submandibular cysts reported from India (158,176), E. oligarthrus was described as causative agent, but there are doubts about the correctness of the diagnosis.…”

Section: Polycystic Echinococcosis In Humansmentioning

confidence: 99%

Biological, Epidemiological, and Clinical Aspects of Echinococcosis, a Zoonosis of Increasing Concern

2004

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Echinococcosis in humans is a zoonotic infection caused by larval stages (metacestodes) of cestode species of the genus Echinococcus. Cystic echinococcosis (CE) is caused by Echinococcus granulosus, alveolar echinococcosis (AE) is caused by E. multilocularis, and polycystic forms are caused by either E. vogeli or E. oligarthrus. In untreated cases, AE has a high mortality rate. Although control is essentially feasible, CE remains a considerable health problem in many regions of the northern and southern hemispheres. AE is restricted to the northern hemisphere regions of North America and Eurasia. Recent studies have shown that E. multilocularis, the causative agent of AE, is more widely distributed than previously thought. There are also some hints of an increasing significance of polycystic forms of the disease, which are restricted to Central and South America. Various aspects of human echinococcosis are discussed in this review, including data on the infectivity of genetic variants of E. granulosus to humans, the increasing invasion of cities in Europe and Japan by red foxes, the main definitive hosts of E. multilocularis, and the first demonstration of urban cycles of the parasite. Examples of emergence or reemergence of CE are presented, and the question of potential spreading of E. multilocularis is critically assessed. Furthermore, information is presented on new and improved tools for diagnosing the infection in final hosts (dogs, foxes, and cats) by coproantigen or DNA detection and the application of molecular techniques to epidemiological studies. In the clinical field, the available methods for diagnosing human CE and AE are described and the treatment options are summarized. The development of new chemotherapeutic options for all forms of human echinococcosis remains an urgent requirement. A new option for the control of E. granulosus in the intermediate host population (mainly sheep and cattle) is vaccination. Attempts are made to reduce the prevalence of E. multilocualaris in fox populations by regular baiting with an anthelmintic (praziquantel). Recent data have shown that this control option may be used in restricted areas, for example in cities, with the aim of reducing the infection risk for humans

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“…E. vogeli and E. oligarthrus occur only in the Neotropics, with the exception of one recorded instance of E. oligarthrus in Mexico. Two human cases of submaxillary echinococcosis in India were erroneously reported to have been caused by E. oligarthrus but instead were caused by E. granulosus (13,37,71). The number of reported cases of E. vogeli infection has increased within the last 10 years, going from 72 persons in 11 countries to 172 in 12 countries.…”

Section: Epidemiology Geographical Distribution Of Neotropical Echinomentioning

confidence: 99%

New Aspects of Neotropical Polycystic ( Echinococcus vogeli ) and Unicystic ( Echinococcus oligarthrus ) Echinococcosis

2008

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SUMMARY Of the four species of the genus Echinococcus (Cestoda) distinguished by biological and morphological characteristics, two species, E. vogeli and E. oligarthrus, occur widely in the Neotropics. Approximately 200 cases of polycystic echinococcosis (PE) have been recorded from 12 countries in South America. Following early proliferation of E. vogeli in the human host, typically in the liver, the metacestode usually spreads in the peritoneal and pleural cavities, and numerous organs may be invaded. The clinical characteristics of PE in 81 patients with sufficient information are reviewed. Type I disease consists of polycysts in the liver and abdominal cavity (37% of the patients had this characteristic); type II is similar to type I but also includes hepatic insufficiency (26%); type III consists of cysts in liver and chest (14%); type IV consists of cysts only in the mesenteries (16%); and type V consists of cysts calcified in liver and lung (4%). The percentage of patients with polycysts in the liver was 81%, and the percentage of patients with polycysts in the chest was 14%. PE is most ready diagnosed by geographic origin of the patient and by means of ultrasound or computerized tomography scanning showing cysts and calcifications. The highest mortality was for patients with type II disease, due to hepatic failure and its complications. There were five patients who died due to surgical accidents, whereas 35 cases had uncomplicated surgery. Twenty-three patients died of PE, making the total mortality 29% (23 of 78 cases). None of the 13 patients treated only with albendazole, the most efficacious treatment, was completely cured. PE represents a severe medical problem in South America. A reevaluation of the characteristics of the metacestode of E. oligarthrus indicated that it is unicystic. Only three human cases are known (two with infection in the orbit and one with infection in the heart). The metacestode of E. oligarthrus, in contrast with that of E. vogeli, consists of a spherical, fluid-filled vesicle that enlarges concentrically and is not known to undergo exogenous proliferation.

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Submandibular hydatid cyst caused by Echinococcus oligarthrus

Cited by 21 publications

References 3 publications

Hydatid cyst in the duct of the submandibular gland

Hydatid cyst in the duct of the submandibular gland

Biological, Epidemiological, and Clinical Aspects of Echinococcosis, a Zoonosis of Increasing Concern

New Aspects of Neotropical Polycystic ( Echinococcus vogeli ) and Unicystic ( Echinococcus oligarthrus ) Echinococcosis

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