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Etiology and clinical pattern of cervical lymphadenopathy in Sudanese children.

Cervical lymphadenopathy (CLA) is a common childhood problem in clinical practice which poses diagnostic difficulties to pediatricians. The aims of this study were to determine the causes of CLA in Sudanese children and to evaluate the value of routine laboratory tests in determining the etiology. Demographic and clinical data were prospectively collected from eighty children with palpable cervical nodes. Children were then subjected to complete blood count, ESR, Mantoux test, aspiration cytology of a lymph node and serological tests for HIV agglutination test, ELISA for Epstein-Barr virus and toxoplasma gondii. The age ranged 1-13 years with a mean of 5.8 ±3.1SD years with no gender difference. Specific etiologies of CLA were determined in 62.5% of patients. Ninety five percent of the causes were due to non-specific reactive hyperplasia of lymph nodes (NSRH) (37.5%), toxoplasmosis (27.5%), infectious mononucleosis due Epstein-Barr virus (13.8%), tuberculous adenitis (10%), acute adenitis (6.2%), whereas malignancy (Hodgkin's lymphoma) constituted 5% of causes of CLA. The clinical characteristics were insignificantly associated with the causes of lymphadenopathy (p>0.05). However, mobile lymph nodes were significantly associated with inflammatory conditions (P<0.05). Inflammatory causes accounted for the majority of the etiologies whereas Hodgkin's lymphoma was the only identified malignancy. Laboratory tests such as, ESR, TWBC, hemoglobin and Mantoux test should be used in adjunct with cytology and serology for diagnosis.