Lymphadenopathy

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List of terms related to Lymphadenopathy

	Lymphadenopathy;
	Lymphadenopathy
ICD-10	I88, L04, R59.1
ICD-9	289.1-289.3, 683, 785.6
DiseasesDB	22225
MeSH	D008206

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Raviteja Guddeti, M.B.B.S. [2]

Synonyms and keywords: Lymph nodes enlarged, enlarged lymph nodes, lymphadenitis

Overview

Lymphadenopathy is a term meaning "disease of the lymph nodes." It is, however, almost synonymously used with "swollen/enlarged lymph nodes".

When the infection is of the lymph nodes themselves, it is called lymphadenitis, but when the infection is of the lymph channels, it is called lymphangitis.

The major lymph node groups are located along the anterior and posterior aspects of the neck and on the underside of the jaw. If the nodes are quite big, you may be able to see them bulging under the skin, particularly if the enlargement is asymmetric (i.e. it will be more obvious if one side is larger then the other). To palpate, use the pads of all four fingertips as these are the most sensitive parts of your hands. Examine both sides of the head simultaneously, walking your fingers down the area in question while applying steady, gentle pressure. The major groups of lymph nodes as well as the structures that they drain, are listed below. The description of drainage pathways are rough approximations as there is frequently a fair amount of variability and overlap. Nodes are generally examined in the following order:

Pathophysiology

Causes

Differentiating from other diseases

Epidemiology and Demogaphics

Risk factors

Natural history, Complications, Prognosis

Diagnosis

Symptoms

Physical examination

Lab findings

Imaging

Treatment