[Diagnostic evaluation of cervical adenopathies in childhood].
Between 1985 and 1990, 45 children were studied in an inpatient basis hospital because of cervical lymphadenopathy. This was the most important clinical sign in these patients. Forty-three had true adenitis. In the others, one was submaxillitis and one a sarcoma. The age range was from 2.1 to 13.3 years. Seven children (16%) had neoplastic adenitis (2 papillary carcinoma of the thyroid, 4 Hodgkin's lymphoma and one non-Hodgkin's lymphoma). Thirty-six patients had benign disorders (18 mononucleosis infections, 7 nonspecific adenitis, 5 infections of mycobacteria, 2 of toxoplasma and 2 of rickettsia, one cervical Whipple and one desmopathic adenitis). We did no find any differences related to age or morphological characteristics of the lymph nodes. The evolution time in patients with malignant tumors was 16.4 weeks and 9.6 weeks in the benign group. All of the cases with supraclavicular location had a lymphoma. The mean LDH in patients with malignant tumors was 214 U/L and 614 U/L in those with non-malignant tumors (p < 0.01).