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LYMPHADENOPATHY & SPLENOMEGALY. Martin H. Ellis MD Meir Hospital. CLINICAL ANATOMY OF THE LYMPH NODES. Head & Neck – occipital, postauricular, preauricular, anterior cervical chain, posterior cervical chain, submandibular, submental, Waldeyer ’ s ring Clavicular – supra and infra
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LYMPHADENOPATHY &SPLENOMEGALY Martin H. Ellis MD Meir Hospital
CLINICAL ANATOMY OF THE LYMPH NODES • Head & Neck –occipital, postauricular, preauricular, anterior cervical chain, posterior cervical chain, submandibular, submental, Waldeyer’s ring • Clavicular – supra and infra • Axillary –lateral, medial, posterior, apical • Epitrochlear • Inguinal • Femoral
Femoral Femoral Femoral
RADIOLOGICAL ANATOMY OF LYMPH NODES • Mediastinal • Perihilar • Retroperitoneal • Mesenteric • Iliac
Hilar adenopathy (sarcoidosis) Mediastinal adenopathy (lymphoma, sarcoma, teratoma)
DIAGNOSIS • History & Physical diagnosis • Laboratory testing • CT scanning • MRI • Isotope scanning • PET-CT scanning • Histologic diagnosis
APPROACH TO DIAGNOSIS • Localized vs. generalized (including splenomegaly) • History • Physical exam • Special investigations
CHARACTERISTICS OF ENLARGED NODES • Size • < 1cm=normal • Pain/Tenderness • inflammation/rapid growth • Consistency • stony, rubbery, firm, soft, fluctuant • Matting • a group of nodes that seem joined • Mobility • Location
DIFFERENTIAL DIAGNOSIS • Congenital • Acquired • Infectious –bacterial,viral,fungal,parasitic,mycobacterial • Inflammatory –autoimmune, allergic, vasculitic • Neoplastic –benign, malignant (primary,secondary) • Toxic & Metabolic –storage diseases, hyperthyroidism • Drug– hydantoin, gold • Traumatic • Idiopathic –sarcoidosis, Castleman disease • Iatrogenic –silicone implants
SITE-DISEASE ASSOCIATIONS • Occipital – rubella • Supraclavicular – TB (scrofula), lung ca, gastric ca (Virchow node- Trousseau sign) • Axillary – breast ca • Inguinal – STDs • Umbilical – ovarian ca (Sister Joseph’s node)
Hx/ PE DIAGNOSTIC eg local infection,tumor UNEXPLAINED SUGGESTIVE eg mono,HIV,lymphoma SPECIFIC TESTING POSITIVE TREAT CONDITION GENERALIZED LOCALIZED Review epidemiology Review medications POSITIVE No serious illness apparent Serious illness apparent DIAGNOSTIC MONONUCLEOSIS SEROLOGY PPD,HIV,HBV,CXR Observe 3-4 weeks POSITIVE Biopsy NEGATIVE Resolved Biopsy BIOPSYABNORMALNODE
SPLENOMEGALY: DIAGNOSIS • History & Physical diagnosis • Laboratory testing • CT scanning • MRI • Isotope scanning • PET-CT scanning • Histologic diagnosis
DIFFERENTIAL DIAGNOSIS • Congenital • Acquired • Infectious –bacterial,viral,fungal,parasitic,mycobacterial • Inflammatory –autoimmune (SLE, Felty syndrome) • Neoplastic –benign, malignant (primary,secondary) • Toxic & Metabolic - (storage diseases eg Gaucher) • Congestive splenomegaly –portal hypertension • “Work” hyperplasia- chronic hemolytic anemias
MASSIVE SPLENOMEGALY • Tumors • Lymphoma, myeloproliferative disorders, Hairy cell leukemia • Infections • Kala-azar (trypanosomiasis) • Portal hypertension • Gaucher disease
Approach to diagnosis-splenomegaly • Known illnesses • eg lymphoma, SLE • Current clinical context • Fever, recent travel, murmers • Imaging studies • Size, focal lesions • Histologic diagnosis • Splenectomy, ?splenic biopsy