1/14. Five cases of diphyllobothrium nihonkaiense infection with discovery of plerocercoids from an infective source, Oncorhynchus masou ishikawae. Five persons from 2 families residing at Miyama Town, Mie Prefecture, japan, ingested fresh raw fish Oncorhynchus sp. on 9 May 1999 that was caught at Owase district in Mie. They all expelled diphyllobothriid cestodes 11-37 days after ingesting the fish. The parasites were morphologically identical to diphyllobothrium nihonkaiense Yamane et al., 1986. Five plerocercoids were detected from a portion of the fish. Nucleotide sequence of a region of the cytochrome c oxidase subunit I gene of mitochondrial dna from an adult worm was identical with that from the plerocercoid. The fish was identified as Oncorhynchus masou ishikawae according to the nucleotide sequence of the nuclear ribosomal second internal transcribed spacer region II gene. This is the first record of D. nihonkaiense plerocercoids from O. m. ishikawae. ( info) |
2/14. A case of diphyllobothrium nihonkaiense infection successfully treated by oral administration of Gastrografin. A diphyllobothriid cestode infection found in a 54-year-old male residing in Oita, japan, was successfully treated by oral administration of Gastrografin in combination with a intramuscular injection of Vagostigmin. The strobila expelled was 6.14 m long with a scolex, and morphologically identical with diphyllobothrium nihonkaiense except unusual ovaries of which posterior horns were confluent in each proglottid. This is the first case of treatment of cestode infection by oral administration of Gastrografin. ( info) |
3/14. Reappearance of human diphyllobothriasis in a limited area of Lake Como, italy. BACKGROUND: Very few sporadic cases of autochthonous diphyllobothriasis have been reported in italy during the past 20 years, probably due to the drastic decrease or disappearance of some fish species, mainly Perca fluviatilis L., known as the intermediate host of the infective larval stage of this tapeworm. However, increasing consumption of raw or undercooked fish during the last years as influenced by Oriental cuisine, played an important role in a number of new single cases of the infection or microepidemics. patients: We describe six cases which were diagnosed within a period of 4 months, which all originated from the area of Lake Como (Lombardy region). All subjects had previously eaten raw perch fillets. Four individuals complained of gastrointestinal signs and symptoms, whereas two were asymptomatic. DISCUSSION: Parasitological diagnosis was achieved in four cases by recovery of typical operculated eggs in stool specimens; in two others by morphological features of proglottids recovered from feces. Treatment with niclosamide, as a single oral dose, cured the infection in all subjects. This is the first report of this infection in italy in the last 10 years. ( info) |
| diphyllobothrium latum infection in human is not common in korea and only thirty seven cases have been reported since 1921. We report two cases of fish tapeworm infection after ingestion of raw cherry salmon (Oncorhynchus masou) caught in the domestic river. Among four family members who ate together raw salmon flesh six months ago, just two, mother and daughter, were infected. It is our expectation that the salmon associated tapeworm infections would be enlisted as one of the major parasitic problems with the growing consumption of salmon in korea. ( info) |
| diphyllobothriasis is a disease caused by infection with adult tapeworms of the genus diphyllobothrium. humans acquire the infection by consuming the raw or inadequately cooked flesh, roe, liver, or other organs of infected fish. diphyllobothrium latum infection has not been reported in malaysia; we are reporting the first case. The patient was a 62 year old Chinese male seen at the outpatient clinic with complaints of watery stools and slight abdominal discomfort for four days. physical examination was normal. He was treated for diarrhea. Two days after treatment, he passed out intact off-white proglottids in his stool. diphyllobothriasis was confirmed by examination of these gravid proglottids; typical operculated eggs were seen after rupturing the gravid proglottids. The patient had a history of eating sashimi (Japanese raw fish). He was treated with a single dose of praziquantel and had been well since. ( info) |
6/14. Putative diphyllobothrium nihonkaiense acquired from a Pacific salmon (oncorhynchus keta) eaten in france; genomic identification and case report. We report here a likely case of diphyllobothrium nihonkaiense contracted in france through the consumption of a Pacific salmon imported from canada. The species diagnosis was made by molecular analysis of two mitochondrial genes (COI & ND3). This case is rather unusual in that D. nihonkaiense has never been reported along the Pacific coast of north america. ( info) |
7/14. The first confirmed case of diphyllobothrium latum in brazil. diphyllobothriasis is an infection of the small intestine by the broad tapeworm diphyllobothrium sp. The associated symptomatology is nonspecific, but megaloblastic anemia is a well-described complication. Although the infection is common in temperate regions, descriptions in south america have so far been limited to chile, peru, and a few cases in argentina. This paper presents the first confirmed Brazilian case of diphyllobothriasis. A 29-years-old woman living in Salvador (state of Bahia) apparently acquired the infection from eating sushi. The diagnosis was based on fecal examination that revealed a large quantity of operculated eggs. A single dose of praziquantel (600 mg) was sufficient to cure the infection. ( info) |
8/14. Annoying vacation souvenir: Fish tapeworm (diphyllobothrium sp.) infestation in an Austrian fisherman. Diphyllobothriosis is infestation with the fish tapeworm. Although the worldwide incidence has decreased in recent decades, increased travel and the new popularity of dishes involving raw fish (e.g. sushi) may provide a higher risk of infestation in formerly low-risk areas. We report an Austrian fisherman who passed a 75 cm tapeworm segment in his stool. Infestation presumably occurred 14 months earlier during a fishing tour in alaska. At presentation, the patient was asymptomatic, reported no weight loss and showed neither anaemia nor eosinophilia. He was cured with a single dose of 10 mg/kg body weight praziquantel. ( info) |
| A case of breast sparganosis was confirmed by surgical excision of a worm (fragmented into 5 pieces) in a 59-year-old Korean woman suffering from a palpable mass in the left breast. mammography and ultrasonography characteristically revealed the presence of several well-defined, isodense and hypoechoic tubular masses, in the upper quadrant of the left breast, each mass consisting of a continuous cord- or worm-like structure. During surgery, a long segment of an actively moving sparganum of spirometra sp. and 4 small fragments of the same worm, giving a total length of 20.3 cm, were extracted from the upper outer quadrant of the left breast and the axillary region. The infection source remains unclear, because the patient denied ingesting any snake or frog meat or drinking untreated water. ( info) |
| diphyllobothriasis latum is an intestinal parasitosis caused by the ingestion of mostly raw fresh-water fish containing plerocercoids of diphyllobothrium latum. We report an 8-year-old boy who came to our hospital with the complaint of a tapeworm hanging from the anus after defecation. The other symptom was mild abdominal cramping for a period of 1 year. The laboratory examination did not reveal anemia or vitamin B12 deficiency. Examination of gravid proglottids with rosette-like central uterus and typically operculated eggs of D. latum confirmed the diagnosis. The morphologic characters of proglottids and eggs size are compatible with D. latum. The patient had a history of eating uncooked fish for 1 year. Salmonids may be the infection source. He was treated with two doses of praziquantel and passed about 183 cm in length of all proglottids. There is a high prevalence of diphyllobothriasis latum in the northern temperate areas, but it is very rare in children. This patient is the first child case reported in taiwan. ( info) |