title: Computed tomography appearance of marked keratinization of metastatic cervical lymph nodes: a case report.
abstract: A case of squamous cell carcinoma of the tongue is reported with emphasis on an atypical finding of cervical lymph node metastasis visible on computed tomography. Multiple cervical lymph nodes revealed a high computed tomographic value of about 330 HU, lower than that of calcification. The lymph nodes revealed well-defined elliptical hyperechoic masses with an echogenic line and posterior shadow on ultrasonography. The appearance of a high density mass on computed tomography with a computed tomographic value lower than that of calcification may be a reliable finding of metastasis because it demonstrates the presence of marked keratinization produced by squamous cell carcinoma.
authors.affiliation: Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Kyushu University, Japan.
authors.forename: E
authors.initials: E
authors.lastname: Nakayama
authors.forename: E
authors.initials: E
authors.lastname: Ariji
authors.forename: M
authors.initials: M
authors.lastname: Shinohara
authors.forename: K
authors.initials: K
authors.lastname: Yoshiura
authors.forename: K
authors.initials: K
authors.lastname: Miwa
authors.forename: S
authors.initials: S
authors.lastname: Kanda
mesh_terms: D002114:Calcinosis / Q000000981:diagnostic imaging; D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging / Q000473:pathology / Q000556:secondary*; D006801:Humans; D007633:Keratins; D008198:Lymph Nodes / Q000000981:diagnostic imaging / Q000473:pathology; D008207:Lymphatic Metastasis / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009333:Neck; D011862:Radiography, Panoramic; D015203:Reproducibility of Results; D014057:Tomography, X-Ray Computed; D014062:Tongue Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D014463:Ultrasonography
chemical_list: D007633:Keratins