The distal end of the toe is spherical
Introduction
Introduction Skin damage begins in the proximal or lateral flexion of the first toe joint. The cleft palate is inflamed or chronically ulcerated, gradually expanding into a ring-shaped narrowing. The distal end of the toe is spherical and connected to the proximal end only one line. The cause is unknown, may be related to congenital abnormalities in genetic quality, chronic injury and long-term barefoot walking in the tropics, or congenital hyperkeratosis, secondary inflammation and fibrosis. Occurs in the toes, especially small toes and fingers can be invaded. Clinical manifestations of the toe (finger) ring-shaped narrowing band, similar to the toe.
Cause
Cause
(1) Causes of the disease
The cause is unknown. It may be related to congenital abnormalities in genetic quality, chronic injury and long-term barefoot walking in the tropics. Or congenital skin hyperkeratosis, cleft palate secondary inflammation and fibrosis.
(two) pathogenesis
The pathogenesis is still unclear. May be associated with genetic quality, hyperkeratosis of the skin caused by chronic injury, secondary inflammation of the cleft palate and fibrosis.
Examine
an examination
Related inspection
CT examination of bone and joint and soft tissue
1. Skin damage begins in the proximal or lateral flexion of the first toe joint. The cleft palate is inflamed or chronically ulcerated, gradually expanding into a ring-shaped narrowing. The distal end of the toe is spherical and connected to the proximal end only one line. . After 5 to 10 years of development, it finally broke off naturally.
2. It is good for the toes, especially the small toes and fingers can be invaded.
3. Clinical manifestations of toe (referring to) annular narrowing band, similar to toe.
4. According to clinical manifestations, the characteristics of skin lesions can be diagnosed.
Diagnosis
Differential diagnosis
Dry necrosis of the toes: a mild dry gangrene of the gangrene of the extremities of the diabetes is a common dry necrosis of the end of the finger or foot or the skin of the foot.
Dry toe at the toe: one of the symptoms of occlusive thromboangiitis. Thrombosis angiitis obliterans (tao) is a kind of vascular inflammation that is different from arteriosclerosis and segmental distribution. The lesions mainly involve the middle and small arteries and veins of the distal extremities. The pathological features are mainly characterized. Inflammatory cells infiltrate thrombus, and less involved in the vessel wall.
Fingertips and nails (peric) erythema: is the clinical symptoms of lupus. Lupus erythematosus is one of the autoimmune diseases, which is a range of connective tissue diseases. Lupus erythematosus is classified into discoid lupus erythematosus (DLE), systemic lupus erythematosus (SLE), subacute cutaneous lupus erythematosus, and deep lupus erythematosus. The onset of lupus erythematosus is slow, and insidious attacks occur, and the clinical manifestations are diverse and varied.
