Normal mediastinal lymph nodes: number and size according to American Thoracic Society mapping

Mediastinal lymph node staging by EBUS-TBNA and CT: Characteristics of lymph node enlargement caused by anthracosis and other benign conditions

“…Mediastinal and hilar lymph node evaluation comprised measurement of size (short axis and long axis). In this setting, lymph node enlargement was defined as showing a size of more than 7-11mm on the short axis depending on the regional nodal station following Glazer et al [10] . Enlarged lymph nodes were assessed for density (prevalence of calcification or central low density as a sign of fatty involution), shape (oval, round) and contour (sharp, ill-defined).…”

Response Assessment Criteria and Their Applications in Lymphoma: Part 1

“…The resulting International Working Criteria (IWC) defined anatomic parameters, obtained by clinical or radiologic examination, that could be used to group patients into the traditional classifications of complete response, partial response, stable disease, and progressive disease, as well a new classification of "unconfirmed complete response" (Table 3). To support these anatomically based criteria, the IWC defined the upper limit for the size of a normal lymph node as 1 cm along its short axis on the basis of several prior studies (40)(41)(42). In the years after its publication, the IWC were also adopted for HL (43).…”

Imaging the posterior mediastinum: a multimodality approach

“…The only widely accepted criterion suggestive of malignancy is a short-axis node diameter greater than 10 mm (56,57). However, this approach may result in both false positives and false negatives, due to inflammatory nodal enlargement and the presence of metastases in normal-sized lymph nodes, respectively.…”