Lymphangitis - Lymphangitis

Japanese: リンパ管炎 - リンパかんえん(英語表記)Lymphangitis
Lymphangitis - Lymphangitis

What is the disease?

Inflammation of lymphatic vessels and the surrounding tissues occurs when bacteria enter the lymphatic vessels and cause inflammation. When inflammation of lymphatic vessels spreads to the central nervous system, it is called “lymphoma.” Arthritis ( Explanation ) " Lymph nodes in the neck, Armpit ( Armpit ) Lymph nodes are concentrated in the groin, so these areas will become swollen when lymphadenitis occurs.

What is the cause?

mainly Streptococcus pyogenes ( Expiration date ) Staphylococcus aureus sometimes invades the extremities through wounds, athlete's foot infections, or ulcers. It can also occur as part of a systemic infection.

How symptoms manifest

When you get sick, you feel a sudden chill and general fatigue, and sometimes you may develop a high fever of nearly 40°C. In areas affected by lymphangitis, red lines (inflamed lymphatic vessels) appear along the long axis of the body surface, but tenderness (pain when pressed) is generally mild. In addition, swelling of the surrounding lymph nodes is observed.

In the chronic stage, the inflamed area becomes hard. Cord ( Creation ) This causes tenderness.

Testing and diagnosis

The red line along the long axis of the limbs is visible from the outside, and there is a feeling of heat and tenderness in the same area, so in most cases it can be diagnosed by visual inspection. It is also characterized by an increase in white blood cells and high fever associated with bacterial infection.

It is important to distinguish this from phlebitis, which rarely causes fever and does not have red lines on the skin or swollen lymph nodes.

Treatment methods

In the acute phase, Bedridden ( Presentation ) The affected limb is then placed under rest, and the wound is treated and cooled, and antibiotics are administered. Sepsis ( Dismissal ) If the swelling is severe, a diuretic will be administered.

In the chronic stage, when swelling is severe, elastic stockings are worn. When the lymph nodes are clearly swollen but blood tests do not show much inflammation, a lymph node biopsy (a test to examine tissue) is performed to see if there is a hidden disease throughout the body.

What to do if you notice an illness

If you suspect lymphangitis, you need to treat the wound and administer antibiotics as soon as possible. If you leave it untreated, it can develop into sepsis, which can be very difficult to treat, so please see a doctor at your local clinic as soon as possible.

Yoshiaki Maruyama

Source: Houken “Sixth Edition Family Medicine Encyclopedia” Information about the Sixth Edition Family Medicine Encyclopedia

Japanese:

どんな病気か

 リンパ管とその周囲の組織の炎症で、細菌がリンパ管内に入り込み、炎症を引き起こします。リンパ管の炎症が中枢に広がると、“リンパ節炎(せつえん)”を起こします。リンパ節は首、(わき)の下、足の付け根に集中しているので、リンパ節炎を起こすとこれらの場所がはれてきます。

原因は何か

 主に溶血性連鎖球菌(ようけつせいれんさきゅうきん)、時にブドウ球菌が四肢の外傷部、水虫感染部、潰瘍部などから侵入して起こります。全身感染の一環として起こることもあります。

症状の現れ方

 病気にかかると、急激な寒気と全身のだるさを感じ、時に40℃近くの高熱が出現することもあります。リンパ管炎を起こした場所では、体表面の長軸に沿って赤い線(炎症を起こしたリンパ管)が現れますが、一般に圧痛(押すと痛む)は軽くてすみます。また、所属リンパ節のはれが認められます。

 慢性期になると、炎症を起こした場所は硬い索状物(さくじょうぶつ)となり、圧痛を残します。

検査と診断

 四肢の長軸方向に沿った赤い線は外から見え、また同部の熱感と圧痛があり、視診で診断可能なことがほとんどです。細菌感染に伴い、白血球の増加や高熱がみられるのも特徴です。

 静脈炎との区別が重要ですが、静脈炎では発熱はまれで、皮膚の赤い線やリンパ節のはれなどもみられません。

治療の方法

 急性期には、臥床(がしょう)して患肢の安静を図り、傷の手当てと冷却、抗生剤の投与を行います。放置すると敗血症(はいけつしょう)になることがあります。むくみが強い時は、利尿薬の投与を行います。

 慢性期でむくみが強い時には、弾性ストッキングをはきます。リンパ節が明らかにはれているのに血液検査で炎症反応があまりみられない時には、リンパ節生検(組織を取って調べる検査)を行い、全身の病気が隠れていないかをみます。

病気に気づいたらどうする

 リンパ管炎を疑った時は、傷の手当てと、早めに抗生剤の投与が必要となります。放置して敗血症になると治療が非常に困難になるので、早めに近くの内科を受診してください。

丸山 義明

出典 法研「六訂版 家庭医学大全科」六訂版 家庭医学大全科について 情報

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>>:  Lymphatic vessel - Lymphatic vessel

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