Neck necrosis

Neck gangrene, also known as Kikuchi's disease, is a benign condition of the lymph nodes. Kikuchi disease is uncommon, with the majority of cases identified in East Asia, rare in North America and Europe.
Kikuchi is an idiopathic disease. However, recently researchers have made two suggestions as to the cause of the disease, one is a virus or other infectious agent (because the disease has similar symptoms to other viral infections), the other is Due to an autoimmune mechanism, when the body is infected, the lymph nodes are attacked and trigger a temporary immune response.
Necrotic lymph nodes can heal on their own in about 1 - 4 months, in some cases it can take up to 1 year and may or may not be treated. However, treatment can help relieve the associated symptoms of the disease.

Lymphadenopathy has the following symptoms:
Swollen lymph nodes in the neck (mainly), armpits and groin. The lymph nodes are large (about 2 - 3 cm in diameter). The lymph nodes are hard, firm, and difficult to move. Anemia (moderate) is accompanied by a decrease in the number of white blood cells in the blood. Common systemic symptoms are low-grade fever and night sweats. There are also rash, fatigue, sore throat, headache, or nausea, vomiting, weight loss, polyarthritis, ... but more rarely.

Clinically, gangrene may be misdiagnosed with systemic lupus erythematosus or lymphoma. To diagnose gangrene, a biopsy of the lymph nodes is required. In addition, other testing methods (including imaging tests) may be recommended to aid in the diagnosis or to rule out.
Treatment of gangrene is mainly supportive. Anti-inflammatory drugs with corticosteroids, nonsteroids (usually used in severe cases), immunosuppressive drugs (used in cases of very severe disease and at risk of affecting the patient's life).
Necrosis is a self-limited disease with a good prognosis and a benign condition. The lymph nodes disappear and the disease can go away in a few weeks or months, or in severe cases it can take longer. The disease also rarely recurs and causes complications.
Necrotizing lymph nodes mainly in the neck, but also in the armpits and groin is a rare but benign disease that can be relieved and the lymph nodes disappear on their own. The patient may or may not need supportive treatment for symptoms.
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