The doctor will perform a physical exam, which includes feeling your lymph nodes. The doctor may look for signs of injury around swollen lymph nodes.
A biopsy and culture of the affected area may reveal the cause of the inflammation. Blood cultures may be done to see if the infection has spread to the bloodstream.
Pasternack MS, Swartz MN. Lymphadenitis and lymphangitis. In: Mandell GL, Bennett JE, Dolin R, eds. Principles and Practice of Infectious Diseases. 7th ed. Philadelphia, Pa: Elsevier Churchill Livingstone; 2009:chap 92.
Stevens DL. Streptococcal infections. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 312.
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