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The American Journal of Tropical... Nov 2023
Topics: Animals; Humans; Diphyllobothrium; Diphyllobothriasis; China; Russia
PubMed: 37549900
DOI: 10.4269/ajtmh.23-0335 -
Revista Chilena de Infectologia :... Apr 2014
Topics: Animals; Diphyllobothrium; Life Cycle Stages
PubMed: 24901121
DOI: 10.4067/S0716-10182014000200013 -
Acta Parasitologica Sep 2012Two tapeworm specimens collected in northeast China in 2009 and 2011 were identified as Diphyllobothrium latum based on morphological criteria. Molecular methods were... (Review)
Review
Two tapeworm specimens collected in northeast China in 2009 and 2011 were identified as Diphyllobothrium latum based on morphological criteria. Molecular methods were used to confirm their identity and analyze genetic variations compared with published data for this species. Species identity was confirmed by molecular characterization of the 18S rDNA partial sequence, complete sequences of internal transcribed spacers (ITSs) and 5.8S rDNA, and partial sequences of mitochondrial cytochrome c oxidase subunit 1 (cox1) and mitochondrial NADH dehydrogenase subunit 5 (nad5). PCR amplification and sequence analysis of 18S rDNA (1472 bp), ITS regions (1218 bp), cox1 (885 bp), and nad5 (1028 bp) revealed that these four sequences showed more than 99% identity to reference sequences for D. latum, confirming that this species is D. latum. To date, a total of 12 diphyllobothriosis cases have been documented in China. This study represents the first molecular characterization of D. latum in China, providing molecular evidence of human diphyllobothriosis in China.
Topics: Animals; China; Diphyllobothriasis; Diphyllobothrium; Humans
PubMed: 22875677
DOI: 10.2478/s11686-012-0036-3 -
Revista Espanola de Enfermedades... Feb 2024Diphyllobothrium spp., also known as fish tapeworms, is the largest human tapeworm, reaching up to 25 meters of length. Human are considered the definitive host in the...
Diphyllobothrium spp., also known as fish tapeworms, is the largest human tapeworm, reaching up to 25 meters of length. Human are considered the definitive host in the Diphyllobothrium lifecycle. Adult tapeworms attach to human intestinal mucosa with to bilateral grooves. There are at least 14 different species of Diphyllobothrium spp. Capable of causing Dyphyllobothriosis, being D. latum and D. nihonkaiense the most frequent etiologic agents in humans. We present the clinical picture and endoscopic images on a patient with incidental finding of Dyphyllobothriosis in a colonoscopy.
PubMed: 38345520
DOI: 10.17235/reed.2024.10300/2024 -
Gastroenterology Research Jun 2018() infection in humans is uncommon in the United States. Although there has been a drastic decline in the report of infection in this region, physicians should be...
() infection in humans is uncommon in the United States. Although there has been a drastic decline in the report of infection in this region, physicians should be aware of an uncommon presentation and its clinical relevance. We report a case of 55-year-old female of Ecuadorian/Peruvian origin who presented with an unknown cause of chronic right lower quadrant abdominal pain for 2 months without other particular symptoms. Initial workup revealed evidence of iron deficiency anemia, and stool occult blood test was positive. She was scheduled for a colonoscopy to assess the source of occult gastrointestinal bleeding. During her bowel preparation, she passed a 25 cm long white tapeworm-like material confirmed microscopically. Despite passing a worm she continued to have abdominal pain. During the colonoscopy, another worm was found lodged in the appendiceal orifice. The colonoscopic images revealed a segmented tapeworm showing contractile motility, approximately 12 cm in length and 6 mm wide in the appendiceal orifice. The scope was unsuccessful in removing the worm. The parasitological and microbiological examination of the passed worm was positive for . a fish tapeworm that infects humans after the ingestion of raw or undercooked fish. The patient had a history of often eating lightly marinated raw fish ("ceviche") in Peru several months before presentation. It is uncommon for infection to present with iron deficiency anemia. As the worm absorbs approximately 80% of dietary vitamin B12, prolonged infection usually causes vitamin B12 deficiency and megaloblastic anemia, which is reported to affect about 40% of cases. Abdominal pain related to mechanical obstruction is reported, but this case is unique in that the worm preferentially attached to the appendiceal orifice causing subacute focal appendiceal pain. She was treated with a single dose of oral praziquantel. After the treatment, she developed minor cramping for the next 2 days which resolved by day 3, and recalled passing half-inch sized pieces of white tissue and subsequently improved. Although infection is an uncommon cause of chronic abdominal pain with iron deficiency anemia, it is crucial to consider because of the potentially treatable outcome.
PubMed: 29915635
DOI: 10.14740/gr989w -
Korean Journal of Pediatrics Nov 2015Diphyllobothrium latum infection in humans is not common in Republic of Korea. We report a case of fish tapeworm infection in a 10-year-old boy after ingestion of raw...
Diphyllobothrium latum infection in humans is not common in Republic of Korea. We report a case of fish tapeworm infection in a 10-year-old boy after ingestion of raw perch about 8 months ago. The patient complained of recurrent abdominal pain and watery diarrhea. A tapeworm, 85 cm in length, without scolex and neck, was spontaneously discharged in the feces of the patient. The patient was treated with 15-mg/kg single dose praziquantel, and follow-up stool examination was negative after one month. There was no evidence of relapse during the next six months.
PubMed: 26692882
DOI: 10.3345/kjp.2015.58.11.451 -
The Korean Journal of Parasitology Sep 2007A case of Diphyllobothrium latum infection in a 49-year old man is described, and diphyllobothriasis latum in the Republic of Korea is briefly reviewed. An incomplete... (Review)
Review
A case of Diphyllobothrium latum infection in a 49-year old man is described, and diphyllobothriasis latum in the Republic of Korea is briefly reviewed. An incomplete strobila of a tapeworm, 95 cm in length, without scolex and neck, was spontaneously discharged in the feces of a patient. On the basis of morphologic characteristics of the worm and eggs, the worm was identified as D. latum. The patient was successfully treated with a single dose (15 mg/kg) of praziquantel. The most probable source of infection was salmon flesh according to the past history of the patient. The first case of D. latum infection was documented in 1971, and this is the 43rd recorded case in the Republic of Korea. The 43 cases were briefly reviewed. The patientso main complaints were gastrointestinal troubles, such as mild abdominal pain, indigestion, and diarrhea, and discharge of tapeworm segments in the feces. The suspected infection sources included raw or improperly cooked flesh of fresh or brackish water fish, including the perch, mullet, salmon, and trout.
Topics: Animals; Anthelmintics; Diphyllobothriasis; Diphyllobothrium; Feces; Humans; Korea; Male; Middle Aged; Praziquantel; Treatment Outcome
PubMed: 17876168
DOI: 10.3347/kjp.2007.45.3.219 -
Tropical Biomedicine Sep 2017Diphyllobothrium latum infection in human is not common in China and only 15 cases have been reported since 1927. We document a case of Diphyllobothrium latum infection...
Diphyllobothrium latum infection in human is not common in China and only 15 cases have been reported since 1927. We document a case of Diphyllobothrium latum infection caused by the ingestion of raw fish in a 23-year-old woman in Dalian (Liaoning Province), and diphyllobothriasis latum in China is briefly reviewed. The patient experienced abdominal discomfort for about 6 months with a history of discharging proglottids in the feces. The morphologic characteristic of the gravid proglottids and eggs were identified as that of Diphyllobothrium latum. The patient was treated with pumpkin seed powder (100g) and betel nut(100g) on an empty stomach. The majority of reported human cases occurred due to the ingestion of raw or uncooked fish, such as pikes, burbots, trouts, perch and salmons. The patient is the first case reported in Dalian (Lianning Province).
PubMed: 33592940
DOI: No ID Found -
Digestive and Liver Disease : Official... Aug 2011
Topics: Animals; Colonic Diseases; Colonoscopy; Diphyllobothriasis; Diphyllobothrium; Female; Humans; Middle Aged
PubMed: 21444257
DOI: 10.1016/j.dld.2011.02.013 -
The Medical Journal of Australia Oct 1951
Topics: Animals; Australia; Cestoda; Diphyllobothrium; Humans
PubMed: 14890195
DOI: 10.5694/j.1326-5377.1951.tb74560.x