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a genus of large tapeworms. D. la´tum is the broad or fish tapeworm, an intestinal parasite of humans, dogs, cats, and other fish-eating mammals.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


A large genus of tapeworms characterized by a spatulate scolex with dorsal and ventral sucking grooves or bothria. Several species are found in humans, although only one, Diphyllobothrium latum, is of widespread importance. Abbreviated taxonomy: Platyhelminthes, Cestoda, Eucestoda, Pseudophyllidea, Diphyllobothriidae, Diphyllobothrium
[G. di-, two, + phyllon, leaf, + bothrion, little ditch]
Farlex Partner Medical Dictionary © Farlex 2012


A large genus of tapeworms (order Pseudophyllidea) characterized by a spatulate scolex with dorsal and ventral sucking grooves, or bothria. Several species are found in humans, although only one, Diphyllobothrium latum, is of widespread importance.
[G. di-, two, + phyllon, leaf, + bothrion, little ditch]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


(di-fil?o-bo`th're-um) [L. Diphyllobothrium, fr di- + Gr. phyllon, leaf + Gr. bothrion, pit]
A genus of tapeworm of the order Pseudophyllidea, marked by a scolex with two bothria (slitlike grooves). The genus was formerly called Dibothriocephalus.

Diphyllobothrium cordatum

A species infesting dogs and seals in Greenland. The plerocercoids are occasionally found in humans. Synonym: heart-shaped tapeworm

Diphyllobothrium erinacei

A species infesting dogs, cats, and other carnivores. Larval stages are occasionally found in humans.
Enlarge picture
DIPHYLLOBOTHRIUM LATUM: Passed in patient's stool.

Diphyllobothrium latum

A species that is native to Scandinavia, the Baltics, and western Russia, and is now found in North America, esp. the Pacific Northwest, that infests fish and mammals. The adult lives in the intestine of fish-eating mammals, including humans. It is the largest tapeworm infesting humans and may reach a length of 50 to 60 ft (15.2 to 18.3 m); the average is 20 ft (6.1 m). The eggs develop into ciliated larvae that are eaten by small crustaceans called copepods. The larvae pass through several stages in the copepods and develop further after the copepods are eaten by fish, finally encysting in fish muscle. People acquire the infection by eating raw or poorly cooked fish that contains cysts. Infection can be prevented by thoroughly cooking all freshwater fish or by keeping the fish frozen at -10°C (14°F) for 48 hr before eating. Synonym: broad tapeworm; fish tapeworm See: illustration


Patients often report abdominal pain, weight loss, digestive disorders, progressive weakness, and symptoms of pernicious anemia because the worm absorbs ingested vitamin B12 from the gastrointestinal tract.


Praziquantel is used to treat the infestation.

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References in periodicals archive ?
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 nihonkaiense (Yamane et al., 1986) in Switzerland: First molecular evidence and case reports.
Diphyllobothrium latum and Demodex canis infection in a dog from Nagpur (M.S.)- A Case Report.
Investigacion de Diphyllobothrium pacificum (Nybelin 1931)Margolis, 1956 en Otaria byronia (Sin.
latum y Diphyllobothrium dendri-ticum, cuya trasmision esta ligada a la cadena trofica, que se inicia con el consumo de copepodos por G.
A case of Diphyllobothrium latum infection with a brief review of diphyllobothriasis in the Republic of Korea.
multilocularis Larva Alveolar cyst Multilocular cysts disease Diphyllobothrium Adult Fish tapeworm Pernicious anemia latum Hymenolepis nana Adult Dwarf tapeworm Rarely symptomati Spirometra Larva Sparganosis Subcutaneous larva mansonoides Table 2.
Difilobotriase e a denominacao utilizada para designar a parasitose intestinal causada por cestodeos do genero Diphyllobothrium spp., o qual possui mais de 50 especies, sendo 13 destas capazes de afetar tambem o homem (2).
diminuta, Diphyllobothrium latum, and Dipylidium caninum..
Scandinavian fishermen who immigrated to the lake regions of Michigan and Wisconsin in the 1800s brought the fish tapeworm, Diphyllobothrium latum, with them.
Bu vitaminin yetersizligine, genellikle gastrik parietal hucreler tarafindan salgilanan intrensek faktorun eksikligi ya da daha nadir olarak malabsorbsiyon olusturan gastrointestinal hastaliklar (colyak hastaligi, genis gastrik ve ileal rezeksiyonlar, barsak kor luplari vb), diphyllobothrium latum infestasyonu ve nitroz oksit ehirlenmesi gibi durumlar neden olur (7-9).