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Lymphadenopathy or lymphadenitis refers to lymph nodes which are abnormal in size, number or consistency and is often used as a synonym for swollen or enlarged lymph nodes. Common causes of lymphadenopathy are infection, autoimmune disease, or malignancy. Inflammation as a cause of lymph node enlargement is known as lymphadenitis. In practice, the distinction between lymphadenopathy and lymphadenitis is rarely made. Inflammation of the lymphatic vessels is also known as lymphangitis. Infectious lymphadenitides affecting lymph nodes in the neck are often called scrofula. The term comes from the word lymph and a combination of the Greek words , ''adenas'' ("gland") and , ''patheia'' ("act of suffering" or "disease"). Due to its peculiar high incidence, the presence of lymphadenopathy is a particularly important sign on the diagnosis of HIV or even, untreated later stages of the infection, AIDS. ==Types== * Localized lymphadenopathy: due to localized spot of infection e.g., an infected spot on the scalp will cause lymph nodes in the neck on that same side to swell up * Generalized lymphadenopathy: due to a systemic infection of the body e.g., influenza or secondary syphilis * * Persistent generalized lymphadenopathy (PGL): persisting for a long time, possibly without an apparent cause * Dermatopathic lymphadenopathy: lymphadenopathy associated with skin disease. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lymphadenopathy」の詳細全文を読む スポンサード リンク
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