acid-fast

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Words related to acid-fast

not easily decolorized by acid solutions

References in periodicals archive ?
Comparison of the modified fluorescent method and conventional ZiehlNeelsen method in the detection of acid fast bacilli in lymph node aspirates.
Evaluation of Different Staining Methods for the Detection of Acid Fast Bacilli in Sputum Samples.
Only in BB, BL and LL skin smears and biopsies were found to be positive for acid fast bacilli (Table 4).
As microscopy for acid fast bacilli was positive but Xpert MTB/RIF was negative, the possibility of NTM infection with lymphadenitis was considered and specimen cultures were extended for NTM.
Variables Frequency Median (IQR) or percentage Sex Male 97 62.2 Female 59 37.8 Age 156 39 [30-51] Age group [greater than or 45 28.8 equal to]50 years <50 years 111 71.2 Resides in SGM Yes 18 11.5 No 138 88.5 HIV status Positive 55 35.3 Negative 101 64.7 Median AFB+ 156 2 [2-3] Smear conversion Median (months) 156 2 [2-2] >2 months 13 8.3 [less than or equal 143 91.7 to]2 months AFB: Acid Fast Bacilli; HIV: human immunodeficiency virus; IQR: interquartile range.
KEY WORDS: Haematoxylin and eosin; acid fast bacilli; Kinyoun; Ziehl Neelsen; Lymph node.
Fite stain revealed multiple fragmented acid fast bacilli in the biopsy specimen (Figure 4).
Results: A total of 88 sputa were negative for acid fast bacilli on smear which were subjected to culture on Lowenstein-Jensen medium.
Caseation and demonstration of acid fast bacilli on cytology are almost always suggestive of tuberculous aetiology but problems arise when cytological evidences are inconclusive (for example, poorly-formed granuloma, neutrophilic infiltration, absence of acid fast bailli, etc.) and also in non-responders after initial ATD therapy, where drug resistance and paradoxical reactions are two common reasons.
1) and all the six intestinal tissue sections were found ZN stain positive 12/53(22.64 %), whereas five of the forty seven impressions and five of the five tissue sections of mesenteric lymph nodes 10/52(19.23% ) showed acid fast bacilli (Table-1).
Acid fast bacillus (AFB) smear test The smears of sputum, peritoneal and pleural fluids and content of lymph nodes were fixed, dried in the air, heat fixed and stained with Ziehl-Neelsen stain (ZN stain) and studied under the microscope to detect acid fast bacilli (Watt et al., 1996; Iqbal et al., 2010).
However, special stains for fungi and acid fast bacilli were negative.
Acid fast bacilli should be searched for in skin biopsies and culture, and a polymerase chain reaction should be done as well.
[9,10] There are various diagnostic modalities available for the diagnosis of TB lymphadenitis like Fine-Needle Aspiration Cytology (FNAC), histopathological examination excised lymph nodes, culture, Ziehl-Neelsen(ZN) staining for Acid Fast Bacilli (AFB), imaging studies and molecular tests.