incumbent. adj. 1. (often: postpositive and foll by on or upon and an infinitive) morally binding or necessary; obligatory: it is incumbent on me to attend.
Morphea, also known as localized scleroderma, is a condition which causes hardening and discoloration of the skin. It is thought to be isolated to the skin without internal organ involvement as seen in systemic sclerosis (commonly known as scleroderma).
linear. 1  Of, relating to, or resembling a line; straight. 2  a. In, of, describing, described by, or related to a straight line. b. Having only one dimension. 3  Characterized by, composed of, or emphasizing drawn lines rather than painterly effects. 4  Botany Narrow and elongated with nearly parallel margins: a linear leaf.