Lupus Vulgaris.
Lupus Vulgaris.
Is the bone tissue ever involved in lupus vulgaris?
No.
What course does lupus vulgaris pursue?
It is slowly but, as a rule, steadily progressive. Several years or more may elapse before the area of disease is conspicuous.
What is the cause of lupus vulgaris?
It is now known to be due to the invasion of the cutaneous structures by the tubercle bacillus; in short, a tuberculosis of the skin. It is not infrequently observed in the strumous and debilitated. It is entirely independent of syphilis.