Microscopy Primer
Light and Color
Microscope Basics
Special Techniques
Digital Imaging
Confocal Microscopy
Live-Cell Imaging
Microscopy Museum
Virtual Microscopy
Web Resources
License Info
Image Use
Custom Photos
Site Info
Contact Us

The Galleries:

Photo Gallery
Silicon Zoo
Chip Shots
DNA Gallery
Amino Acids
Religion Collection
Cocktail Collection
Screen Savers
Win Wallpaper
Mac Wallpaper
Movie Gallery

Phase Contrast Image Gallery

Black Lung Disease (Anthracosis)

A stained thin section of human lung tissue afflicted with anthracosis, or black lung disease, is illustrated in the photomicrograph presented below. As evidenced by the micrograph, combining phase contrast microscopy with classical histological staining techniques in pathological research often yields enhancement of cellular features.

Black Lung Disease is a form of pneumoconiosis, a condition caused by the habitual inhalation of irritants, coal dust in this case. It is a slow-acting, chronic disease that takes one or two decades to cause symptoms, but its effects can be severely disabling, causing pulmonary emphysema or chronic bronchitis. Cigarette smoking is known to make the symptoms worse.

Anthracosis is the early stage of Black Lung and may be asymptomatic. Early symptoms of the disease include shortness of breath, labored breathing, coughing, and production of phlegm. At this stage, avoiding exposure to coal dust can stop the disease.

Black lung sufferers are at higher risk of developing other potentially fatal diseases such as cancer, tuberculosis, or heart disease. About 4.5 percent of coal miners are affected by black lung. Between 1979 and 1996, 14,156 people died of the disease. Black Lung is probably the most commonly known occupational illness in the United States.


Questions or comments? Send us an email.
© 1998-2022 by Michael W. Davidson and The Florida State University. All Rights Reserved. No images, graphics, scripts, or applets may be reproduced or used in any manner without permission from the copyright holders. Use of this website means you agree to all of the Legal Terms and Conditions set forth by the owners.
This website is maintained by our
Graphics & Web Programming Team
in collaboration with Optical Microscopy at the
National High Magnetic Field Laboratory.
Last modification: Friday, Nov 13, 2015 at 02:19 PM
Access Count Since May 2, 2000: 48397
For more information on microscope manufacturers,
use the buttons below to navigate to their websites: