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CERVICAL LYMPHADENOPATHY. Dept of Oral Medicine & Radiology Yenepoya Dental College Mangalore. Lymphnodes are encapsulated centres of lymphocyte differetiation and proliferation. Small, oval or reniform bodies About 0.1 – 2.5 cm long Numerous in neck, mediastinum, post
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CERVICALLYMPHADENOPATHY Dept of Oral Medicine & Radiology Yenepoya Dental College Mangalore
Lymphnodes are encapsulated centres of lymphocyte differetiation and proliferation
Small, oval or reniform bodies • About 0.1 – 2.5 cm long • Numerous in neck, mediastinum, post abdominal wall & pelvis • about - 400 - 450 LN • Head and neck - 60 – 70 LN
FUNCTIONS • Generate mature and prime B and T cells • Add antibodies to circulation • Filter particles, microbes from lymph
Submental • Submandibular • Parotid • Upper cervical • Middle cervical • Lower cervical • Supraclavicular fossa • Posterior triangle (accessory chain)
Lymphadenitis - an inflammation or infection of lymph node and frequently occurs when an infection is present in the tissues drained by particular node pathway
CAUSES I . INFECTION BACTERIAL / VIRAL / PARASITIC II. NEOPLASIA PRIMARY SECONDARY- Ca / Mal Malanoma III. MISCELANIOUS SARCOIDOSIS / DRUG REACTION/C T DISEASES
Adenovirus CMV Enterovirus EBV Herpes simplex Staphlococcus infection Cat Scratch Diseas Hodgkin's disease Lymphomas Leukemia Metastatic disease Histiocytosis SLE Kawasaki Disease Infectious Causes Non-infectious causes
LYMPH NODES a. SITE , b. SIZE , c. NUMBER , d. TENDERNESS e.CONSISTANCY, f.. FIXITY,
INVESTIGATION • HISTORY • CLINICAL EXAMINATION • TEMP/ DRAINAGE/ DENTAL & MUCOSAL /ENT • SPECIAL INVESTIGATION • BLOOD PICTURE • CHEST X RAY • SEROLOGY • KVIEM TEST • MANTOUX TEST • FNAC / FNAB • BIOPSY
Two distinct types of benign LN enlargement • Non tender • Tender / painful
NON TENDER LYMPHOID HYPERPLASIA • Persistent chronic lymphadenitis or A permanenly enlarged LN after acute or chronic lymphadenitis • LN are solitary, discrete, asymtomatic and freely movable • Submandibular ,submental and subdigastric LN
D/D Secondary carcinoma – hard & fixed Management Patient recalled after 2 week & evaluated If doubtful – removal of node & examination
ACUTE LYMPHADENITIS: • Most common pathologic cervical enlargement • Primary infection in oral cavity, nasal cavity , tonsils or Pharynx • Cause painful , swollen nodes in submental, submandibular / subdigastric • Rapid regression of inflammation - nodes Normal & non- palpable
SEVERAL NODES MAY BE INVOLVED • MOVABLE OR FIXED D/D • LUDWIG’S ANGINA • INFECTED CYST
MANAGEMENT • When primary infection eliminated Lymphadenitis regress • Adequate doses of antibiotics
METASTATIC CARCINOMA TO CERVICAL NODES • LN are frequent sites • Result of metastatic spread from primary tumors of head & neck • Squmous cell carcinoma is most common tumor spreading to cervical LN • Adenocarcinoma of salivary glands, Scc of skin & melonoma metastasize
Lymphatic trunks drain upper extremities & rest of body below clavicles, so solitary metastatic nodes can be from primary tumors of breast, lungs & stomach FEATURES • Usually painless • Detected on clinical examination • Feel stony hard & freely movable till they penetrate node capsule & Invade surrounding tissues • Submandibular & subdigastric nodes most frequent sites
D/D • Fibrosed nodes or nodes undergone non tender lymphoid hyperplasia • Lymphoma (rubbery) MANAGEMENT • Combination of resection, radiation & chemotherapy • Prognosis is guarded
LYMPHOMA A neoplastic proliferation within the reticuloendothelial system that occurs as primry tumor of lymph node
FEATURES • Solitary / multiple • Unilateral / bilateral • Usually rubbery • Advanced cases – patient is ill with fever, TC & DLC may be markedly changed • Other node groups axillae, groin & mediastinum involved
D/D • Multiple & disseminated nodal involvement occur in certain viral diseases & in mononucleosis • Nodes are tender & painful MANAGEMENT • Radiation & chemotoxic drugs