1/22. North American paragonimiasis. A case report.BACKGROUND: paragonimiasis is a parasitic infection with a predilection for pulmonary involvement. Paragonimus species occur throughout the world and exist in nature in a snail-crustacean-mammalian life cycle. Human disease is most frequently encountered in cultures that ingest raw or undercooked crustaceans. North American paragonimiasis, caused by an endemic Paragonimus species, Paragonimus kellicotti, predominantly causes disease in carnivorous and omnivorous animals but may cause human disease if the intermediate host, the crayfish, is ingested raw or undercooked. CASE: A previously healthy, 21-year-old male was infected with P kellicotti and developed parasitic hemoptysis. The disease was contracted through the ingestion of local, undercooked crayfish. diagnosis was established through the morphologic examination of eggs in the cytologic preparation of bronchioalveolar lavage fluid. The patient was successfully treated with praziquantel and recovered without incident. CONCLUSION: paragonimiasis is a cause of parasitic hemoptysis worldwide. paragonimiasis is infrequently encountered in north america and is usually not considered in the differential diagnosis of hemoptysis unless specific risk factors are known. The cytologist or cytopathologist, therefore, may be the first to encounter the diagnostic eggs and should be familiar with this disease.- - - - - - - - - - ranking = 1keywords = paragonimiasis (Clic here for more details about this article) |
2/22. Just another hemoptysis or a fluke?Hemopytsis is commonly encountered in the daily practice of the pulmonary physician. Younger patients with normal chest x-rays frequently have acute or chronic bronchial disease accounting for their complaint. Occasionally parasitic disease is described as an unusual cause for a patient presenting with hemoptysis. Although pulmonary paragonimiasis is unusual in this country, because of the rapid growth in travel as well as immigration, physicians will need to be aware of this disorder.- - - - - - - - - - ranking = 0.2keywords = paragonimiasis (Clic here for more details about this article) |
3/22. Case report: paragonimiasis westermani with seroconversion from immunoglobulin (Ig) m to IgG antibody with the clinical course.A 66-year-old man visited our hospital with primary complaint of cough. Chest roentgenogram showed slight pleural effusion and pneumothorax in the left lung. eosinophilia (22.8%) was also found in his peripheral blood. Multiple-dot enzyme-linked immunosorbent assay (dot-ELISA) for the detection of parasite-specific immunoglobulin (Ig) G antibody was used to screen his serum against various parasitic diseases, but no significant binding was observed with any of the 12 parasite antigens examined, including those of paragonimus westermani and P. miyazakii. Although he seemed to have been spontaneously cured without treatment, a nodular shadow appeared in the right upper medial lung field on the chest roentgenogram 6 months later. This time, his serum was positive for anti-P. westermani IgG antibody by the same method. A reexamination of the first and second admission serum samples for parasite-specific IgM and IgG antibodies revealed significant level of IgM antibody in the serum of the first admission, which had decreased at the time of the second admission. Conversely, the level of IgG antibody, which was low at the first admission, became dominant in the second admission serum 6 months later. These results clearly show that although the dot-ELISA to detect IgG antibody is generally useful for screening and detecting paragonimiasis, detection of IgM antibody seems to be a useful aid and should also be included in immunoserological diagnosis, especially if the patient is considered to be in the early stage of infection.- - - - - - - - - - ranking = 0.2keywords = paragonimiasis (Clic here for more details about this article) |
4/22. North American paragonimiasis: case report of a severe clinical infection.paragonimiasis is an important cause of pulmonary disease worldwide. It results from an infection with Paragonimus, a parasite that reproduces through a complex life cycle involving snails, crustaceans, and mammals. humans acquire the disease by ingesting uncooked freshwater crab or crayfish. Paragonimus species are distributed globally, and the disease is well known in endemic regions of asia where culturally based methods of food preparation foster human transmission. Paragonimus also exists in regions of the united states but has been a rare cause of pulmonary disease. We report a case of a previously healthy young man who developed a dense empyema from Paragonimus kellicotti that ultimately required thoracotomy and praziquantel to eradicate his infection.- - - - - - - - - - ranking = 0.8keywords = paragonimiasis (Clic here for more details about this article) |
5/22. Pulmonary paragonimiasis misdiagnosed as tuberculosis: with special references on paragonimiasis.The diagnosis of tuberculosis by X-ray radiogram is often confused with pulmonary carcinoma, bacillary and parasitic infections, and chronic mycosis. A case of pulmonary paragonimiasis misdiagnosed as tuberculosis by X-ray radiogram is reported. With this case, the smears of sputum were rechecked by an inspection technician's discernment, and Paragonimus eggs along with numerous eosinophils and Charcot-Leyden crystals were detected. In suspected cases of tuberculosis, a history of crab-eating plus sputum examinations, image findings, and serodiagnosis are necessary to rule out paragonimiasis.- - - - - - - - - - ranking = 2keywords = paragonimiasis (Clic here for more details about this article) |
6/22. Cavitary mass lesion and recurrent pneumothoraces due to Paragonimus kellicotti infection: North American paragonimiasis.North American paragonimiasis is well described in omnivorous and carnivorous animals on this continent. humans are rarely infected, largely because of dietary customs, but are at risk for infection if raw or undercooked crayfish are consumed. We describe a patient with a pleuropulmonary infection due to Paragonimus kellicotti that presented as recurrent pneumothoraces and a cavitary lesion. This is the first case of North American paragonimiasis in which the diagnosis was based on the morphology of the eggs present in histologic sections.- - - - - - - - - - ranking = 1.2keywords = paragonimiasis (Clic here for more details about this article) |
7/22. Pulmonary paragonimiasis mimicking lung cancer on FDG-PET imaging.The case of a 48-year-old man with pulmonary paragonimiasis mimicking lung cancer on positron emission tomography with fluorodeoxyglucose (FDG-PET) imaging is reported herein. Plain radiography and computed tomography (CT) of the chest showed a nodular lesion at the left pulmonary hilum. lung cancer was strongly suggested from standardized uptake values determined on FDG-PET imaging; however, repeat chest CT revealed the lesion to have decreased in size. Pulmonary paragonimiasis was subsequently diagnosed after sputum microscopy demonstrated operculated parasitic eggs. To the best of our knowledge, this is the first reported case of pulmonary paragonimiasis mimicking lung cancer on FDG-PET imaging.- - - - - - - - - - ranking = 1.4keywords = paragonimiasis (Clic here for more details about this article) |
8/22. Pleuropulmonary paragonimiasis in a Laotian immigrant to australia.A case of pleuropulmonary paragonimiasis that mimicked reactivation of pulmonary tuberculosis, pneumonia, and neoplasm occurred in a Laotian immigrant to australia. The key to the diagnosis of this condition is awareness of the disease in persons from this region. The diagnosis was supported by enzyme-linked immunosorbent assay testing. The patient was successfully treated with praziquantel.- - - - - - - - - - ranking = 1keywords = paragonimiasis (Clic here for more details about this article) |
9/22. Pulmonary paragonimiasis. Report of a case with diagnosis by fine needle aspiration cytology.We report a case of paragonimiasis in a Nigerian woman evaluated for symptoms of chronic respiratory disease five years after chemotherapy for primary lymphoma of the breast. Fine needle aspiration of one of two fibrocavitary pulmonary lesions yielded thick, brown material in which ova diagnostic of paragonimus westermani were identified cytologically. This disease is unusual in natives of north america but is seen in travelers and immigrants from asia, africa, and South and central america, where it is endemic. The infection can be fatal, especially if it involves the central nervous system. The clinical differential is broad, but an accurate diagnosis may be made by fine needle aspiration, thus allowing proper treatment.- - - - - - - - - - ranking = 1keywords = paragonimiasis (Clic here for more details about this article) |
10/22. Pulmonary paragonimiasis.A 27-year-old married male from Lamdeng village of Imphal West District, Manipur presented with cough, fever, haemoptysis, anorexia and weight loss, and was treated with antituberculosis drugs continuously for one year without improvement. He also had history of ingestion of raw crabs. Chest radiograph revealed right midzone lesion with cavitation. Laboratory investigations revealed peripheral blood eosinophilia, elevated erythrocyte sedimentation rate and sputum smear revealed eggs of paragonimus westermani. He responeded well to treatment with praziquantel 25 mg/kg, three times a day for three days and is doing well on follow-up. Pulmonary paragonimiasis must be considered in the differential diagnosis of slowly resolving pneumonias, especially in the appropriate clinical setting because effective treatment with praziquantel can be rewarding.- - - - - - - - - - ranking = 1keywords = paragonimiasis (Clic here for more details about this article) |
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