Lymphadenitis


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

lymphadenitis

[‚lim‚fad·ən′īd·əs]
(medicine)
Inflammation of lymph nodes.

Lymphadenitis

 

inflammation of the lymph nodes.

Lymphadenitis arises as a result of the entry with the lymph into the lymph nodes of pathogenic microorganisms and their toxins, products of tissue decomposition, or tiny foreign bodies. The condition is observed with acute and chronic local inflammatory processes (an infected wound, furuncle, ulcer, dental caries) and generalized infectious diseases and is manifested by enlargement and tenderness of the lymph nodes.

Depending on the causative agent and the character of the inflammation, lymphadenitis is classified as simple (catarrhal), purulent, hemorrhagic (for example, with anthrax), or hyper-plastic (with proliferation of the cellular elements of the node). It is classified as either acute or chronic, according to the course of the disease. Acute lymphadenitis begins with pain in the region of the affected nodes and enlargement of the nodes. With acute purulent lymphadenitis, the pain is severe. The nodes can barely move, surrounded by a painful infiltrate (a result of the involvement of surrounding tissues in the process, or periadenitis). The patient’s body temperature rises and his appetite is lost. The nodes may dissolve with the formation of an abscess. Without treatment, the pus either breaks through to the exterior or penetrates deeper, inflaming new tissues (adenophlegmon). Thrombophlebitis is possible.

Chronic lymphadenitis is characterized by enlargement, induration, and decreased mobility of the lymph nodes. Chronic nonspecific lymphadenitis develops under the influence of mild infection. Chronic specific lymphadenitis develops in connection with tuberculosis, syphilis, or other chronic infections.

Lymphadenitis is treated by eliminating the condition’s primary inflammatory focus or cause and by physical therapy, antibiotics, and novocaine blockade. Some cases require surgery.

IA. O. OL’SHANSKII

References in periodicals archive ?
The clinical manifestations of fever, malaise, lymphadenitis in a young woman is certainly suggestive of an infectious or an autoimmune disease.
The differential diagnosis of KFD includes infectious lymphadenitis of different etiologies, autoimmune lymphadenopathy (primarily SLE lymphadenopathy), and non-Hodgkin lymphoma.
BCG-induced lymphadenitis is the most common complication of BCG vaccination.
The incidence of the adverse effects associated with BCG vaccine is up to 3.8%.3,5 Post BCG lymphadenitis is one of the most common side effect of the vaccine.1,3 Most of the cases of post BCG lymphadenitis are suppurative and defined as "palpable lymph nodes after BCG vaccine with fluctuation, erythema and oedema of overlying skin with absence of fever and tenderness".1 Suppurative BCG lymphadenitis is primarily treated by needle aspiration surgical excision is done in cases of failed needle aspiration.
Suture granuloma is not commonly seen in the respiratory clinic and can be misdiagnosed as tuberculous lymphadenitis. This case highlights the importance of considering suture granuloma as a differential diagnosis in post thyroidectomy patients who present with a lump in the neck.
In the case with primary breast cancer, axillary tuberculous lymphadenitis was reported at the time of diagnosis (7).
Disease spectrum of cervical lymphadenitis, analysis based on ultrasound guided core needle biopsy.
The fact that NLR levels in TB lymphadenitis were not higher than the controls in our study may suggest that NLR elevation may be associated with parenchymal infiltration.
This can explain regional lymphadenitis but cannot explain the same phenomenon in remote lymph node groups.
SUVmax of sarcoidosis is statistically higher than that of tuberculosis and lymphadenitis; however, it had no significant difference with that of lymphoma (Figure 3(a)).
DAY 3-5 (i) Transient improvement in lymphadenitis noted with IV clindamycin.
Lymphadenitis due to parasitic and reactive causes was clearly more in children as shown in Figure 1.