Venous stasis dermatitis
Venous stasis dermatitis is the term used to
describe the reactions of the skin to its being flooded with venous
blood. The symptoms occur at those sites where arterial blood flow is
hindered most by venous blood, i.e. the lower portions of the leg, the
calf and the ankle – exactly those sites at which venous leg ulcers
most commonly occur. Stasis dermatitis is a common precursor and must
be regarded as a serious warning sign. Because of strong itching one
often finds encrusted scratch marks at these sites.
A still unexplained feature of stasis dermatitis is the
fact that it can spread. One finds similar strongly itching areas in
the skin – which may range from small foci to large surfaces – at body
sites that are by no means connected with venous circulation disorders,
such as the back, the chest or the arms. Curing the primary eczema
cures these distant sites of eczema as well.
At this point it would be appropriate to mention a
further type of skin damage that does not belong to the category of
eczemas. Rather, like stasis dermatitis it is a consequence of
excessive pressure in the skin veins of the leg. This form is known as
white atrophy. The condition is marked by noticeable, glassy, bright
areas, the size of a pea or a coin, mainly in the vicinity of the ankle
joint. They take years to develop but could, without any forewarning,
suddenly turn into an extremely painful leg ulcer.
|Starting ulcerous decay in a zone of white