Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Slowly growing mycobacteria
Introduction
Overview
Overview
Mycobacteria that form colonies clearly visible to the naked eye in more than 7 days on subculture are termed “slow growers”.
Runyon I: Photochromogens
Runyon I: Photochromogens
Yellow and smooth
Yellow and rough
Runyon II: Scotochromogens
Runyon II: Scotochromogens
Yellow
- Mycobacterium conspicuum
- Mycobacterium botniense
- Mycobacterium farcinogenes
- Mycobacterium heckeshornense
- Mycobacterium interjectum
- Mycobacterium kubicae
- Mycobacterium lentiflavum
- Mycobacterium nebraskense
- Mycobacterium nebraskense
- Mycobacterium palustre
- Mycobacterium tusciae
Yellow-Orange
Rose-Pink
Runyon III: Nonchromogens
Runyon III: Nonchromogens
Rough
- Mycobacterium africanum
- Mycobacterium bovis
- Mycobacterium caprae
- Mycobacterium lacus
- Mycobacterium lepraemurium
- Mycobacterium microti
- Mycobacterium pinnipedii
- Mycobacterium shottsii
- Mycobacterium tuberculosis
Smooth
- Mycobacterium branderi
- Mycobacterium heidelbergense
- Mycobacterium intracellulare
- Mycobacterium malmoense
Smooth to rough
Small and Transparent
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]