title: Subungual glomus tumour: evaluation of ultrasound imaging in preoperative assessment.
abstract: For an evaluation of the preoperative assessment of subungual glomus tumours, a non-invasive examination of the lesion is desirable. Previous studies, however, have not clearly demonstrated these findings. We examined two cases of subungual glomus tumours and applied the approximately 5-14 MHz broadband B-mode and C-mode ultrasound imaging methods combined with Color Doppler imaging (CDI) and B-flow imaging (BFI) to clarify the significance of the preoperative assessment. We confirmed the tumour's localization, size and depth, using B-mode and C-mode imaging; and tumour vascularity using CDI and BFI. BFI is a newly developed ultrasound technique that enhances the B-mode imaging quality of the blood flow, including high-frame-rate and high-spatial-resolution imagings. BFI revealed the exact fine blood vessels within the subungual small tumour with no blooming compared to CDI. Our results indicate that these ultrasound scanning imagings are non-invasive and nonionizing evaluation methods, and that an accurate preoperative diagnosis using these methods will result in more effective surgical excision and relief.
authors.affiliation: Department of Dermatology, Surugadai Nihon University Hospital, 1-8-13 kanda-Surugadai, Chiyoda-ku, Tokyo 101-8309, Japan. akie-matsunaga@marble.ocn.ne.jp
authors.forename: Akie
authors.initials: A
authors.lastname: Matsunaga
authors.forename: Toyoko
authors.initials: T
authors.lastname: Ochiai
authors.forename: Ikuko
authors.initials: I
authors.lastname: Abe
authors.forename: Ai
authors.initials: A
authors.lastname: Kawamura
authors.forename: Ritsuko
authors.initials: R
authors.lastname: Muto
authors.forename: Yasuyuki
authors.initials: Y
authors.lastname: Tomita
authors.forename: Masahiro
authors.initials: M
authors.lastname: Ogawa
mesh_terms: D000328:Adult; D005260:Female; D005918:Glomus Tumor / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009260:Nail Diseases / Q000000981:diagnostic imaging*; D011300:Preoperative Care; D012878:Skin Neoplasms / Q000000981:diagnostic imaging*; D014463:Ultrasonography