Callous ulcer is a chronic nonhealing
ulcer
An ulcer is a discontinuity or break in a bodily membrane that impedes normal function of the affected organ. According to Robbins's pathology, "ulcer is the breach of the continuity of skin, epithelium or mucous membrane caused by sloughin ...
with hard indurated base and inelastic margins.
It usually contains unhealthy pale
granulation tissue
Granulation tissue is new connective tissue and microscopic blood vessels that form on the surfaces of a wound during the healing process. Granulation tissue typically grows from the base of a wound and is able to fill wounds of almost any size ...
. It may last for months to years and does not show any tendency to heal.
See also
*
Chronic ulcer
References
{{Cutaneous-condition-stub}
Gastrointestinal tract disorders