Painful leukoplakia

Introduction When the deep veins of the lower extremities are acutely embolized, the lower extremity edema reaches the highest level within a few hours, the swelling is concave and high tension, and the obstruction mainly occurs in the femoral vein system. When the infection is combined, the artery is stimulated to continue to sputum, showing swelling of the whole limb, pale skin and subcutaneous reticular venous dilation, called Phlegmasia Alba Dolens.

Cause

Due to the rapid and extensive thrombosis, lower extremity edema reaches its maximum level within a few hours, with severe swelling and high tension. Early arterial spasm of the lower extremities occurs as swelling of the lower extremities, pale skin and reticular expansion of the subcutaneous venules. This condition is called painful whiteness.

1. Age: Deep vein thrombosis (DVT) can be seen in any age group, but statistics show that with age, the incidence rate is gradually increased.

2. Braking: Patients who are often seen in bed for a long time are prone to develop DVT.

3. History of venous thrombosis: 23% to 26% of patients with acute DVT have a history of venous thrombosis.

4. Malignant tumors: It is found that 19% to 30% of DVT patients have malignant tumors, and lung cancer is the most common malignant tumor that causes DVT.

an examination

Related inspection

Cardioangiography

The most common major clinical manifestation is sudden swelling of one limb. Patients with deep venous thrombosis of the lower extremities have localized pain and are aggravated when walking. The light part is only heavy, and the symptoms are aggravated when standing. The physical examination has the following characteristics:

1 swollen limbs: the degree of development of swelling must be accurately measured according to the daily use of the tape measure, and the thickness of the control with the lower limbs of the healthy side is reliable, and it is unreliable to rely solely on the naked eye. This sign has a high value for the diagnosis of deep vein thrombosis. When the calf is severely swollen, the tissue tension is often increased;

2 tenderness: venous thrombosis often has tenderness. Therefore, the lower extremities should check the calf muscles, the armpits, the adductor myotubes and the femoral vein under the groin;

3Homans sign: When the foot is sharply bent to the dorsal side, it can cause deep pain in the calf muscles. When the deep vein thrombosis of the calf is performed, the Homans sign is often positive. This is caused by stimulation of the calf vein of the calf when the gastrocnemius and soleus muscles are passively elongated;

4 superficial varicose veins: deep vein occlusion can cause elevation of superficial venous pressure, varicose veins can be performed after 1 or 2 weeks of onset.

Differential diagnosis

Painful femoral bruising: When the iliac crest and femoral vein thrombosis, extensively involving the intramuscular venous plexus, the iliac vein and its collaterals are all blocked by the thrombus, and the lower extremities are highly edematous. Due to severe venous return disorder, severe congestion, clinical manifestations of severe pain, the skin of the affected limb is purpura, known as painful femoral bruises.

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