Observational studySurgical and radiologic anatomy : SRA2020
Normative measurements of parotid lymph nodes on CT imaging.
Observational study in Surgical and radiologic anatomy : SRA, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Surgical management of head and neck squamous cell carcinoma metastatic to the parotid gland.Frontiers in oncology · 2025Review
- Radioguided Surgery for the Localisation of Specific Adenopathies in the Head and Neck Area.Journal of maxillofacial and oral surgery · 2024Article
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe goal of this study is to characterize the normal size of parotid lymph nodes among healthy adult patients on CT.
methodsThis was a single-center retrospective observational study of 543 patients who underwent maxillofacial CT scans between January 2019 and July 2019. The long and short axis diameters of the largest lymph nodes in the bilateral superficial parotid glands were measured.
resultsAmong the 543 patients, 407 subjects with a mean age of 47.0 ± 18.4 years had a total of 719 detectable intraparotid lymph nodes. The mean patient age was 47.0 ± 18.4 years. Of all 719 measured intraparotid lymph nodes, the measured long and short axis diameter means were 4.4 ± 1.4 mm and 3.3 ± 1.1 mm, respectively. In our study, 96% (689/719) of all lymph nodes had a long axis diameter of 7 mm or less and 93% (671/719) of all lymph nodes had a short axis diameter of 5 mm or less. Younger patients had significantly larger lymph nodes than older patients in both long axis (4.5 vs 4.3 mm; P = 0.03) and short axis (3.4 vs 3.1 mm, P = 0.01) measurements.
conclusionOur findings suggest 5 mm as an upper limit of normal for the short axis diameter of superficial intraparotid lymph nodes.
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