Related Experiment Videos
Mites in pulmonary cytology specimens
M L Farley1, L C Mabry, L R Hieger
1Department of Pathology, University of Texas Health Center, Tyler 75710.
Diagnostic Cytopathology
|January 1, 1989
Summary
Pulmonary cytology specimens occasionally contain mites, which can be mistaken for contaminants. Their presence and clinical significance in respiratory samples require further investigation.
Area of Science:
- Cytopathology
- Medical Entomology
- Pulmonology
Background:
- Mites are microscopic arthropods that can be found in various environments.
- Their presence in biological specimens, particularly respiratory samples, can be incidental or clinically relevant.
- Pulmonary cytology involves the microscopic examination of cells from the respiratory tract.
Purpose of the Study:
- To report the incidence and characteristics of mite detection in pulmonary cytology specimens.
- To highlight the potential for misidentification of mites as contaminants.
- To discuss the implications of mite presence in respiratory samples.
Main Methods:
- Retrospective analysis of 55 pulmonary specimens over 4.5 years.
- Specimens included sputum, bronchial washings, and fine-needle aspirates.
- Saccomanno blending technique and cytocentrifugation for smear preparation.
Main Results:
- Mites were identified in 55 pulmonary specimens, with Tyrophagus sp. being common but not exclusive.
- Mite eggs and various life stages (adults, larvae) were observed.
- Mites were associated with acute inflammatory cells in 13 instances.
- Seasonal variation and interobserver variability in detection were noted.
- Mites were not found in nonpulmonary specimens.
Conclusions:
- Mites are an infrequent finding in pulmonary cytology specimens and can be mistaken for contaminants.
- The clinical significance of mites in respiratory samples, including their role as allergens, remains undetermined.
- Awareness and careful examination are crucial to avoid misdiagnosis.