1/7. 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 = parasitic infection (Clic here for more details about this article) |
2/7. Pseudoparasitic pneumonia after bone marrow transplantation.We present a female patient from somalia with an acute lymphoblastic leukemia, who received an allogeneic bone marrow transplantation (BMT) and developed several periods of moderate to severe pulmonary symptoms that were accompanied by pulmonary infiltrates and peripheral blood eosinophilia. After several recurrences an open lung biopsy was performed, which initially gave rise to the diagnosis parasitic infection. Later on this diagnosis was questioned and it was suggested that the structures were artifacts that might have been aspirated. Nevertheless, after the immediately given antihelminthic treatment no peripheral blood eosinophilia occurred anymore, but at that point of time pulmonary function was already severely hampered and eventually led to a lethal complication. With the worldwide increasing migration from Third World countries with a high prevalence of parasitic infections, more patients will receive immunosuppressive therapies in countries less familiar with parasites. This may complicate diagnostic procedures, prevent early recognition and delay adequate treatment. Specific screening for opportunistic parasitic infections of the population at risk before BMT and a great awareness for these infections is strongly recommended.- - - - - - - - - - ranking = 3keywords = parasitic infection (Clic here for more details about this article) |
3/7. 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 = 1keywords = parasitic infection (Clic here for more details about this article) |
4/7. Cytopathologic and genetic diagnosis of pulmonary amebiasis: a case report.BACKGROUND: amebiasis is a parasitic infection with entamoeba histolytica. Pulmonary amebiasis is rare since the infection is commonly manifested as amebic colitis or liver abscess. Most pleuropulmonary amebiasis is seen in patients with amebic liver abscesses. A pulmonary amebic lesion without either a liver abscess or amebic colitis is extremely rare. Thus, reported cases of sputum cytologic diagnosis of a pulmonary amebic lesion from a patient without a liver abscess are also very rare. CASE: A 53-year-old man presented with a dry cough and mild fever. Chest radiography revealed an abnormal solitary mass lesion in the right upper lung field. The clinical diagnosis was a bacterial lung abscess. sputum cytologic examination demonstrated many trophozoites of E. histolytica. Following sputum cytodiagnosis, serologic tests revealed a slightly high but almost normal titer of IgG antibodies to E. histolytica, indicating the possible presence of the pathogen. polymerase chain reaction (PCR) using E. histolytica-specific primers for dna extracted from the sputum sample revealed specific dna product. CONCLUSION: Pulmonary amebiasis without either a liver abscess or amebic colitis must be distinguished from bacterial abscesses and neoplastic disease. A sputum cytologic examination combined with PCR for dna extracted from a sputum sample is a good approach to the diagnosis of a pulmonary amebic abscess.- - - - - - - - - - ranking = 1keywords = parasitic infection (Clic here for more details about this article) |
5/7. sparganum mansoni parasitic infection in the lung showing a nodule.Reported herein is a 57-year-old man infected by sparganum mansoni, a kind of tapeworm, showing a solitary nodule of the middle lobe of the right lung. Because a transbronchial biopsy could not diagnose the nodule, a right middle lobectomy was performed on suspicion of malignant tumor. The lesion was diagnosed as sparganosis by histological and immuno-serological examinations. Histological examination revealed granulomatous inflammation with neutrophil and eosinophil infiltration around the worm and interstitial pneumonia surrounding the nodule. Moreover, vasculitis with foreign body giant cell was seen around the lesion. To the authors' knowledge this is the second case of sparganosis limited in the lung, and the current report presents the first detailed histological description of a pulmonary sparganosis case.- - - - - - - - - - ranking = 4keywords = parasitic infection (Clic here for more details about this article) |
6/7. Atrial septal defect presenting as recurrent primary amoebic lung abscess.A middle-aged female with an atrial septal defect (secundum type) presented with a primary pulmonary amoebic abscess. She was successfully treated with antiamoebic therapy. One year later she presented with a similar lung abscess which again responded to antiamboebic treatment. attention is drawn to the fact that a patient with a left to right shunt can present with a recurrent rare primary parasitic infection of the lung.- - - - - - - - - - ranking = 1keywords = parasitic infection (Clic here for more details about this article) |
7/7. Fatal adult respiratory distress syndrome following successful treatment of pulmonary strongyloidiasis.Hyperinfection with strongyloides stercoralis occurs mostly in immunocompromised patients, including those treated with systemic steroids. A case of Strongyloides-induced adult respiratory distress syndrome was recently reported, and we now report a case in which fatal ARDS appeared to result from the successful therapy of massive parasitic infection.- - - - - - - - - - ranking = 1keywords = parasitic infection (Clic here for more details about this article) |