Skin piebaldness

Skin petal disease is actually a type of skin inflammation. The common clinical phenomenon is as the name suggests, there are petal-like color patches on the skin. Common sites are generally feet and hands, and in severe cases, they may also appear on the body. The cause of this type of skin petal disease is generally due to contact with something irritating to the skin, or due to skin allergies, and there are some other reasons that can also cause it. Is skin petal disease serious?

What causes skin spots?

It can be caused by blood, immune or connective tissue diseases, as well as chronic obstructive vascular disease, dysproteinemia, immobilization, exposure to heat or cold, and shock. Skin mottling can also be a normal reaction, such as when exposure to cold causes congestion of the skin's veins, resulting in systemic mottling.

Arterial occlusion (acute) manifests initially as changes in temperature and color, pallor which may progress to macular cyanosis and livedo reticularis. The skin temperature and color at the blocked site are significantly different from those of normal skin. Examination reveals that blood vessel pulsation is weakened or absent, the limbs are cold, and the capillary filling time is increased.

Atherosclerotic Occlusion Atherosclerosis occludes the arterial lumen, resulting in reduced blood flow. Symptoms and signs that may occur in the limbs (especially the legs) include pallor, cyanosis, erythema, and livedo reticularis of the legs.

Buerger disease causes unilateral or asymmetric macules on the lower extremities, particularly livedo reticularis. Typically, it causes intermittent claudication and erythema along the course of the blood vessels.

Cryoglobulinemic necrotizing disease may cause patchy livedo reticularis, petechiae, and ecchymoses.

Hypovolemic shock Vasoconstriction caused by shock may cause skin discoloration, initially at the knees and elbows. As shock worsens, the macules become generalized, and as shock progresses, the skin becomes clammy and cool.

Livedo reticularis (idiopathic or primary) is a symmetrical, widespread skin macules that may affect the hands, feet, arms, legs, buttocks, and trunk. Initially, livedo reticularis is intermittent, occurring primarily in response to cold or stress, but eventually the spots become persistent even in the presence of warmth.

Skin examination for periarteritis includes palpable nodules, erythema, purpura, muscular atrophy, ulceration, and asymmetric livedo reticularis along medium-sized arteries.

Polycythemia vera is a blood disorder that can cause livedo reticularis, hemangiomas, purpura, red ulcerative nodules, and scleroderma-like lesions.

Systemic lupus erythematosus (SLE) is a connective tissue disease that can cause livedo to form, most commonly on the outside of the arms.