acid-fast

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Words related to acid-fast

not easily decolorized by acid solutions

References in periodicals archive ?
Diagnosis relied on molecular identification of acid-fast organisms in tissues.
If routine sputum tests or bronchial washings for bacteria fail to provide an organism seemingly responsible for a clinical state, further samples should be submitted to test for fungal and acid-fast organisms. Biopsy should be considered for suspect skin lesions that do not improve with appropriate treatment.
(1,3) In this case, the presence of acid-fast organisms on biopsy made mycobacteriosis suspect.
Likewise, there was no evidence of acid-fast organisms, fungal or helminth parts identified.
Three operative specimens were tested for acid-fast organisms. The patient was discharged and prescribed a 6-week course of vancomycin, 750 mg intravenously every 8 hours, and ciprofloxacin, 500 mg orally 2x/d.
The microscopic differential diagnosis of intracranial Rosai-Dorfman disease includes eosinophilic granuloma, inflammatory pseudotumors and meningiomas overrun by inflammatory cells, Langerhans cell histiocytosis, lymphoproliferative disorders, infectious diseases, and plasma cell granuloma.[2,3] The diagnosis of Rosai-Dorfman disease can be rendered confidently based on the immunohistochemical staining pattern, the presence of emperipolesis, and negative cultures and/or special stains for bacteria (including acid-fast organisms) and fungi.
More splenic lesions contained acid-fast organisms than did liver lesions, suggesting that splenic biopsy may have the greatest potential for diagnosis of mycobacterial infection antemortem.
The advantage of using biopsy specimens over blood cultures is that the biopsy may show acid-fast organisms or granulomas weeks before blood cultures are found to be positive.
Many years of work on acid-fast organisms did little to expand knowledge of tubercle bacilli, but the work opened avenues of research on the host's responses to infection.
Proposal of a new genus, Gordona, for slightly acid-fast organisms occurring in sputa of patients with pulmonary disease and in soil.
Histopathological lesions were diffuse granulomas characterized by extensive macrophages and epithelial cell infiltration into the mucosa and submucosa of the small intestine, and colon, with numerous acid-fast organisms.