Livedo racemosa
| Classification according to ICD-10 | |
|---|---|
| M30.8 | Other conditions related to panarteritis nodosa |
| ICD-10 online (WHO version 2019) | |
As livedo racemosa (also vasculitis racemosa ) is defined as a net-like reddish-livid skin drawing idiopathic other or in connection with a variety of systemic diseases , particularly autoimmune diseases and vasculitis , may occur.
Symptoms and ailments
The reticulate skin changes occur mainly on the legs, upper arms and trunk and are often exacerbated by the cold. If the symptoms arise in connection with systemic diseases, the frequency of occurrence depends on the underlying disease. The idiopathic form mainly affects young adults and middle-aged women. With this form, ulcerations on the legs are also observed. Another variant with involvement of small cerebral arteries is Sneddon syndrome . Here, epilepsies , visual field defects or even strokes are complications.
Pathogenesis
The proliferation of smooth muscle cells and endothelial cells of the small and medium-sized blood vessels of the skin, for example in inflammatory processes, leads to stenosis or closure of the same. Often this is aggravated by the cold. Alternatively, the occlusion can also be caused by an increased viscosity of the blood, which can lead to a stoppage of blood flow and the formation of micro- thrombi . The interrupted or insufficient blood flow into individual skin areas results in an irregular and regionally strongly fluctuating oxygen supply to the tissue. Oxygen-poor blood is darker than oxygen-rich blood, which is why there is a juxtaposition of rosy and bluish-livid skin color.
causes
A cause for the skin appearance cannot always be found (idiopathic livedo racemosa), but it can be found in connection with a number of systemic diseases. It can occur, among other things, in:
- Polyarteritis nodosa
- Endangiitis obliterans
- bacterial endocarditis
- Lupus erythematosus
- Dermatomyositis
- syphilis
- tuberculosis
- rheumatoid arthritis
- arterial embolism
- cutaneous B-cell lymphoma
- Cryoglobulinemia
- hypertension
- Pancreatitis
- arteriosclerosis
- Pseudohyperparathyroidism
- Hepatitis
- Phospholipid Antibody Syndrome
Web links
Individual evidence
- ↑ a b Information at www.dermis.de, the joint specialist portal of the Department of Clinical Social Medicine at the University of Heidelberg and the Erlangen Dermatology Clinic at the Erlangen-Nuremberg University Hospital
- ↑ a b P. Altmeyer: Encyclopedia of Dermatology, Venerology, Allergology, Environmental Medicine (online) Springer Verlag 2017
