Cases reported "Lung Diseases"

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1/132. lymphomatoid granulomatosis following autologous stem cell transplantation.

    lymphomatoid granulomatosis (LYG) is a rare angio-destructive lymphoproliferative disorder (LPD) of uncertain etiology, with prominent pulmonary involvement. Recent studies indicate that LYG is an Epstein-Barr virus (EBV)-associated B cell LPD with large numbers of background reactive T lymphocytes (T cell-rich B cell lymphoma). Although the disease frequently, but not exclusively, occurs in various immunodeficiency states, it has not been reported in association with the transient immunosuppression following autologous bone marrow/peripheral stem cell transplantation (ABM/PSCT). We describe a patient who developed lymphomatoid granulomatosis of the lung approximately 2 weeks after high-dose chemotherapy and autologous peripheral stem cell transplantation for multiple myeloma. Although molecular studies showed no evidence of EBV genome in the biopsy material, the serologic profile with high IgM titers was suggestive of primary EBV infection. Complete radiologic remission occurred following reconstitution of the patient's immune response after a 2-week course of ganciclovir treatment. Despite the apparently low frequency of LPD (both LYG and EBV-associated post-transplant lymphoma) in the ABMT setting, we believe that it should be considered in the differential diagnosis of patients whose clinical course following ABMT is complicated by fevers, in the absence of an identifiable infectious process.
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2/132. Diffuse alveolar hemorrhage in the antiphospholipid syndrome: spectrum of disease and treatment.

    OBJECTIVE: To describe clinical manifestations, laboratory findings, and treatment of patients with the antiphospholipid syndrome (APS) who develop diffuse alveolar hemorrhage. methods: Diffuse alveolar hemorrhage is an occasionally reported manifestation of the APS. The diagnosis, however, may be overlooked or manifestations attributed to another disease process. Seven episodes in 5 patients with primary APS were identified and retrospectively reviewed for presenting symptoms and signs, laboratory findings, and response to treatment. RESULTS: The severity of the condition varies, and diffuse alveolar hemorrhage may be the initial manifestation of APS. patients may present with symptoms ranging from cough, dyspnea, and fever with or without hemoptysis, to symptoms of acute respiratory failure. Hypoxemia and anemia are usually present. Other causes need to be excluded. bronchoscopy and bronchoalveolar lavage with or without biopsy often aid in confirming the diagnosis. The pathologic abnormality appears to be microvascular thrombosis with or without capillaritis. Treatment with corticosteroids usually leads to marked improvement. CONCLUSION: patients with APS may present with diffuse alveolar hemorrhage resulting in mild to life threatening symptoms. Prompt and thorough evaluation to confirm the diagnosis and treatment with corticosteroids usually leads to rapid improvement. The clinical setting will dictate whether other therapies such as immunosuppressive agents or intravenous immunoglobulin are required.
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3/132. Severe pulmonary hemorrhage in patients with serious group A streptococcal infections: report of two cases.

    Severe pulmonary hemorrhage was observed in two patients who died of serious group A streptococcal infections. These two patients initially presented with fever and sore throat. This was followed by sudden onset of septicemia caused by the bacteria and by the subsequent development of severe pulmonary hemorrhage. hemoptysis, cyanosis, and dyspnea were observed prior to death in both cases. This pulmonary lesion resulted in asphyxia and sudden death in one patient. Pathological examinations of the lung revealed severe intraalveolar hemorrhage, with no evidence of inflammation or necrosis of the pulmonary tissue. There was no evidence of aspiration of blood due to hemorrhage in the upper respiratory or alimentary tract. This visceral lesion appears to be an hitherto undescribed, novel clinicopathologic feature of patients with serious group A streptococcal infections.
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4/132. Diffuse alveolar hemorrhage syndrome due to 'silent' mitral valve regurgitation.

    A variety of clinical diseases are associated with diffuse alveolar hemorrhage. Although mitral valve disease can cause hemoptysis, it rarely is associated with diffuse alveolar hemorrhage at presentation. A 49-year-old woman was admitted to the hospital with the abrupt onset of fever, anemia, dyspnea, azotemia, and diffuse alveolar infiltrates. Two-dimensional echocardiography done several months earlier to evaluate atypical chest pain had been unremarkable. Fiberoptic bronchoscopy 2 days after admission to the hospital revealed fresh blood throughout the tracheobronchial tree. The infiltrates resolved rapidly and completely during systemic steroid therapy only to reappear as the steroids were tapered, suggesting a beneficial therapeutic response. Results of serologic evaluation were negative. Transbronchial biopsies showed inflammation and hemosiderin-laden macrophages; no specific diagnosis was established. The patient was scheduled for open lung biopsy. The surgeon was concerned about the history of chest pain and requested placement of a pulmonary artery catheter, which revealed severe pulmonary hypertension. Transesophageal echocardiography and subsequent cardiac catheterization showed severe mitral regurgitation. mitral valve replacement resulted in complete elimination of symptoms.
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5/132. Pulmonary mycobacteriosis caused by rifampicin-resistant mycobacterium szulgai.

    We describe a rare case of pulmonary mycobacteriosis infected with rifampicin (RFP)-resistant mycobacterium szulgai that was successfully eradicated with clarithromycin (CAM) treatment. An 80-year-old man was admitted to our hospital with a 4-week history of high fever, productive cough and malaise. Chest roentgenogram showed an infiltrative shadow in the left lower lung field. Isolated bacteria from sputum were acid-fast bacilli and identified as M. szulgai by the dna-dna hybridization method. Drug susceptibility tests showed resistance to RFP (MIC>100 microg/ml). Combined treatment with ethionamide, streptomycin and isoniazid based on the results of drug susceptibility tests resulted in clinical and radiologic improvement within two years. Additional treatment with CAM for another year resulted in complete eradication of the mycobacterium.
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6/132. Acute parvovirus B19 infection mimicking juvenile myelomonocytic leukemia.

    An 11-month-old patient with parvovirus infection mimicking juvenile myelomonocytic leukemia (JMML) is presented. The patient's history, presenting physical and laboratory features, was suggestive of JMML and consisted of fever, hepatosplenomegaly, lymphadenopathy, desquamation of the skin, anemia, leukocytosis with monocytosis and trilineage dysplastic findings of the peripheral blood and bone marrow. However, positive IgM titers for parvovirus B19 followed by seroconversion, negative cytogenetics and the benign follow-up of the patient suggested acute parvovirus infection as an etiologic factor for development of dysplastic features in the patient, and thus is recommended for consideration in the differential diagnosis of MDS. Although parvovirus B19 infection mimicking MDS has previously been shown in two patients with spherocytosis and one with subclinical immune deficiency; to our knowledge, the present report is the first describing the association of acute parvovirus B19 infection with dysplastic features mimicking myelodysplasia (MDS) in a child without a demonstrable underlying hematolymphoid disorder.
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7/132. Fatal pulmonary infection due to multidrug-resistant mycobacterium abscessus in a patient with cystic fibrosis.

    We report a case of fatal pulmonary infection caused by mycobacterium abscessus in a young patient with cystic fibrosis, who underwent bipulmonary transplantation after a 1-year history of severe lung disease. Fifteen days after surgery he developed septic fever with progressive deterioration in lung function. M. abscessus, initially isolated from a pleural fluid specimen, was then recovered from repeated blood samples, suggesting a disseminated nature of the mycobacterial disease. Drug susceptibility testing assay, performed on two sequential isolates of the microorganism, showed a pattern of multidrug resistance. Despite aggressive therapy with several antimycobacterial drugs, including clarithromycin, the infection persisted, and the patient died.
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8/132. Silo-Filler's disease.

    The effects of oxides of nitrogen inhalation are reported in a 21-year-old gardener exposed to silage gas. Initial nausea, cough and fever remitted, but respiratory failure developed 3 weeks later. Roentgenograms and lung function studies revealed pulmonary edema, volume restriction, and severely impaired gas exchange. Needle biopsy showed a nonspecific interstitial pneumonia. With steroid therapy all functional parameters except diffusing capacity returned to normal. Failure to inquire about non-occupational activities led to delayed diagnosis. A brief review of toxic effects of nitrogen oxides is presented.
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9/132. Fatal neonatal echovirus 6 infection: autopsy case report and review of the literature.

    A full-term, healthy male neonate was delivered by caesarian section to a 26-year-old primigravida woman who had a history of fever and upper respiratory tract infection. On the fourth day of life, the neonate developed a sepsis-like syndrome, acute respiratory and renal failure, and disseminated intravascular coagulopathy. He died 13 days after birth. Postmortem examination revealed jaundice, anasarca, massive hepatic necrosis, adrenal hemorrhagic necrosis, renal medullary hemorrhage, hemorrhagic noninflammatory pneumonia, and severe encephalomalacia. Echovirus type 6 was isolated from blood, liver, and lungs. Although uncommon, echovirus type 6 infection may produce a spectrum of pathologic findings similar to those seen with the more commonly virulent echovirus type 11.
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10/132. Asymptomatic persistent pulmonary infiltrates in an immunocompetent boy with cat-scratch disease.

    We describe here an immunocompetent boy with fever, regional adenopathy, multifocal hepatosplenic granulomas, and high and increasing serum antibody titers for bartonella henselae in whom diffuse bilateral reticulonodular pulmonary infiltrates developed in the absence of respiratory symptoms.
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