The scolex of this species does not have hooks or cupshaped suckers but is characterized by two grooved suckers bothria, one on each side of the scolex, which it uses to attach to the mucosa of the small intestine. The worm is widely distributed in subarctic regions life cycle second larval stage procercoid clinical disease. Diphyllobothrium latum, apos a ruptura dos proglotes gravidos figura 2. Diphyllobothrium latum diagnosistreatmenteggs in stooldoc niclosamide or praziquantel. Diphyllobothrium latum definition of diphyllobothrium.
Morphology of diphyllobothrium latum fish tapeworm life cycle of diphyllobothrium latum clinical features of diphyllobothrium latum treatment. In this article we will discuss about diphyllobothrium latum fish tapeworm. The mature segment is much wider than it is tall and contains a rosetteshaped uterus. Parasitas veiculados por agua, alimentos ou solo i. The clinical picture is identical with that of genuine pernicious anemia, except that the disease may also occur in young subjects, and that the gastric juice contains castles intrinsic factor and frequently also free hydrochloric acid. In japan, the causative agent of diphyllobothriasis has long been considered to be the tapeworm diphyllobothrium latum proposed as dibothriocephalus latus in 2017 2, ever since the first case of diphyllobothriasis reported in 1889 12. Diphyllobothrium infection belgium pdf ppt case reports. Although diphyllobothrium latum is the most common species to infect humans, differentiation cannot be made based on morphology molecular methods are required emerg infect dis 2014. Life cycle and morphology infection with the adult worm is acquired by the ingestion of row, poorly cocked or.
Cdc diphyllobothrium frequently asked questions faqs. Note the bothria, two deep dorsoventral suctorial grooves, which are typical structures of the pseudophyllidean tapeworm. Diphyllobothrium latum morphologylength up to 10m30ft. Diphyllobothrium definition of diphyllobothrium by medical. Several other diphyllobothrium species infect humans, but less frequently what are the signs and symptoms of diphyllobothrium infection most infections are asymptomatic. The principal species causing diphyllobothriasis is diphyllobothrium latum, known as the broad or fish tapeworm, or broad fish tapeworm.
Occurs in northern hemisphere europe, north america, asia and south america uruguay and chile. Diphyllobothrium latum infection in a child with recurrent. In asia, this infection has been reported in republic of korea, japan, siberia and malaysia2. The patient had a history of eating crustaceans and fish. Diphyllobothrium latum dibothriocephalus latus luhe 1910 epidemiologia conocido. Morphologic and genetic identification of diphyllobothrium. In this study, we observed 62 specimens collected from korean residents and analyzed them by morphological features and nucleotide. In adults, proglottids are wider than they are long hence the name broad tapeworm. Diphyllobothrium latum definition of diphyllobothrium latum. As in all pseudophyllid cestodes, the genital pores open midventrally. Diphyllobothrium difillobothreum, a large genus of tapeworms characterized by a spatulate scolex with dorsal and ventral sucking grooves or bothria. Disebut juga dengan difilobatriasis atau penyakit cacing pita adalah salah satu jenis penyakit cacing yang paling berbahaya. Protozoarios e parasitas diphyllobothrium latum quali. Scribd is the worlds largest social reading and publishing site.
Diphyllobothrium latum is one of the longest intestinal tapeworms of mammals, such as humans, dogs, cats, foxes, and other wild canines1. Diphyllobothrium is a flat tapeworm class cestoda, order pseudophylidia. Diphyllobothrium latum e a tenia do peixe, causadora da difilobotriase ou esparganose. Morphology of diphyllobothrium latum fish tapeworm 2. Molecular detection of diphyllobothrium nihonkaiense in. The cause of diphyllobothriosis in 5 persons in harbin and shanghai, china, during 20082011, initially attributed to the tapeworm diphyllobothrium latum, was confirmed as d. Diphyllobothrium latum introduction diphyllobothrium latum is an intestinal cestode or tapeworm which possesses a scolex with 2 bothria unlike the typical 4 suckers seen on the taenia species. Pdf diphyllobothrium latum infection in a child with. Esses ovos, em contato com agua limpa, comecam a embrionar e, apos dez dias ou mais, uma larva, chamada coracidio, e produzida.
Infected persons may experience abdominal pain, vomiting, diarrhea, and weight loss. In korea, this tapeworm had long been known as diphyllobothrium latum. Diphyllobothrium latum wikipedia, a enciclopedia livre. Rosette shape uteri in the gravid proglittids stained with acetocarmine solution, x20. Introduction diphyllobothrium is a genus of tapeworm which can cause diphyllobothriasis in humans. Diphyllobothrium latum at tadas ivanauskas zoological. Bentuk cacingnya pipih seperti pita, bisa mencapai panjang 3 10 meter dan hebatnya walau dipotongpotong, cacing ini masih bisa hidup. Pictures and captions courtesy of leventhal and cheadle. There is a uterine pore through which eggs are discharged. What is diphyllobothrium latum diphyllobothrium latum and related species the fish or broad tapeworm, the largest tapeworms that can infect people, can grow up to 30 feet long. A terapia utilizada pelo paciente foi praziquantel 600mg 1 dose e desde entao permanece bem. Diphyllobothrium is a large tapeworm, often consisting of 30004000 segments or proglottids measuring from 3 to 12 m, that inhabits the ileum and jejunum. Diphyllobothrium latum and related species the fish or broad tapeworm, the largest tapeworms that can infect people, can grow up to 30 feet long. While most infections are asymptomatic, complications include intestinal obstruction and gall bladder disease caused by migration of proglottids.
Diphyllobothrium latum is the most common and mostly found in scandinavia, the baltics and western russia. In some infections there may be a severe vitamin b12 deficiency and anemia caused by obstruction of vitamin b12 absorption coupled with high absorption. Diphyllobothrium latum was confirmed by examination of the gravid proglottids and typical operculated eggs in the stool. Diphyllobothrium latum as a cause of pernicious anemia.
The principal species causing diphyllobothriosis is diphyllobothrium latum, known as the broad or fish tapeworm, or broad fish tapeworm. Jun, 2019 diphyllobothriasis is a fishborne zoonotic infection with the cestode diphyllobothrium latum see the image below or other similar species eg, diphyllobothrium nihonkaiense, diphyllobothrium dendriticum, adenocephalus pacificus, diplogonoporus balanopterae. Several other diphyllobothrium species infect humans, but less frequently. Diphyllobothrium latum luhe, 1910, taenia pisiformis bloch, 1780. Diphyllobothrium definition of diphyllobothrium by. The eggs mature in water within three weeks and form oncospheres. Diphyllobothriasis is a fishborne zoonotic infection with the cestode diphyllobothrium latum see the image below or other similar species eg, diphyllobothrium nihonkaiense, diphyllobothrium dendriticum, adenocephalus pacificus, diplogonoporus balanopterae.
Human diphyllobothriasis in korea was first reported in 1919 by kojima and ko, and was morphologically identified by the adult worm as d. Diphyllobothrium latum the broad or broad fish tapeworm, a species that causes diphyllobothriasis, found in humans and fisheating mammals in many parts of northern europe, japan and elsewhere in asia, and in scandinavian populations of the american north central states and in north american inuit populations. Rosetteshape uteri in the gravid proglottids stained with acetocarmine solution, x 40. In some infections there may be a severe vitamin b 12 deficiency and anemia caused by obstruction of vitamin b 12 absorption coupled with high absorption rates by the tapeworm. Diphyllobothrium latum article about diphyllobothrium.
Pubvet, publicacoes em medicina veterinaria e zootecnia. Diphyllobothrium is a genus of tapeworms which can cause diphyllobothriasis in humans through consumption of raw or undercooked fish. The patient complained of recurrent abdominal pain and watery diarrhea. Infection with diphyllobothrium latum is often asymptomatic and longlasting decades. This is the case report of the first brazilian infected. The life cycle of diphyllobothrium latum starts, when immature eggs are passed in the feces of an infected human. Notice the operculum lid and the polar knob on opposite ends of the egg. Diphyllobothrium latum infection in humans is not common in republic of korea. It is endemic in parapolar areas where humans consume raw or pickled fish. Morphology of diphyllobothrium latum fish tapeworm life cycle of diphyllobothrium latum clinical features of diphyllobothrium latum.
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