Article Abstract:
Diagnostic evaluation of progressive dyspnea in a 61-year-old man is presented. The patient showed mild exertional dyspnea and cough but had no lung infection or disease. The CT scan of the pulmonary tissues and histochemical examination of the lung-biopsy tissues reveals that the patient has bronchiolitis due to Mycobacterium avium infection and questionable hypersensitivity pneumonitis.
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Article Abstract:
The case of a 76-year-old man who developed human granulocytic ehrlichiosis is described. Ehrlichiosis is a tick-borne disease with symptoms similar to Rocky Mountain spotted fever.
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Article Abstract:
A previously healthy 40-year-old man was diagnosed with Mycobacterium avium bronchiolitis, an inflammation of the lungs, in the absence of underlying lung disease. At the time of admission, the man coughed constantly, had difficulty breathing, had no fever, was not at risk for HIV, and did not respond to antibiotics. Testing with respect to AIDS and tuberculosis were negative. Lung biopsy produced yellow nodules, suggesting an infection. Mycobacterium avium complex was eventually cultured, followed by drug therapy. The patient responded slowly to therapy. No evidence of previous lung disease was apparent, a very unusual observation in the presence of bronchiolitis for such a young man. AIDS patients and older people usually have this type of infection, with or without attendant lung disease.
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