title: [Ultrasonic diagnosis of the central hyperechogenic area in lymph nodes. A sign of benign lymphadenopathy].
abstract: When identifying superficial lymphadenopathies by means of echotomography, the only accepted criterium of evaluation is still dimension. Only lymph nodes with a diameter longer than 0.5 cm are considered as potentially pathological, irrespective of their morphological characteristics. In the past two years an echotomographic study of the surface regions was carried out on 300 patients. Some suffered from unspecific solitary lymphadenopathies; most of the others were affected by stationary neoplasias, mainly situated in the cervical region. In many cases it has been possible to correlate the echotomographic and the histological results. Sixty-nine out of the 300 examined patients had lymph nodes with a central hyperechogenic area. Histology showed these lymph nodes to be the site of reactive hyperplasia. This characteristic has never been found in neoplastic lymph nodes. It has been hypothesized that this spot corresponds to the hilus of the lymph node and that, through its identification, it may be possible to distinguish benign from neoplastic lymph nodes.
authors.affiliation: Servizio di Radiologia, Ospedale--Monselice Padova.
authors.forename: B
authors.initials: B
authors.lastname: Perin
authors.forename: G
authors.initials: G
authors.lastname: Gardellin
authors.forename: E
authors.initials: E
authors.lastname: Nisi
authors.forename: L
authors.initials: L
authors.lastname: Perini
authors.forename: F
authors.initials: F
authors.lastname: Lunghi
authors.forename: P
authors.initials: P
authors.lastname: Frasson
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D006801:Humans; D006965:Hyperplasia; D008198:Lymph Nodes / Q000473:pathology; D008206:Lymphatic Diseases / Q000175:diagnosis* / Q000473:pathology; D008207:Lymphatic Metastasis / Q000175:diagnosis; D008875:Middle Aged; D014463:Ultrasonography
vernacular_title: Identificazione ecotomografica di area iperecogena centrale nei linfonodi. Segno di linfoadenopatia benigna.