title: Simultaneous treatment of multiple basal cell carcinoma lesions.
abstract: We present a rare case of advanced basal cell carcinoma where multiple large lesions, located on the anterior chest wall and back, were treated simultaneously using tomotherapy (TomoTherapy HiArt; TomoTherapy Inc, Madison, WI). A 74-year-old man presented with seven to eight separate extensive lesions on his body, some with a duration of 7 years or more. The image-guidance component of tomotherapy allowed daily verification of the position of the target and critical structures, enabling accurate targeting in the vicinity of sensitive critical structures. Intensity-modulated radiotherapy on a conventional linear accelerator would have required junctioning of multiple complex plans, owing to the large treatment area, and most likely sequential treatment strategies to target anterior and posterior lesions. Helical tomotherapy allowed the three largest lesions to be treated simultaneously and thus eliminated the need for multiple courses of treatment.
authors.affiliation: Department of Radiation Therapy, Medical Physics and Radiation Oncology, The Ottawa Hospital Cancer Centre, 501 Smyth Road, Ottawa, Ontario K1H 8L6, Canada. lmontgomery@ottawahospital.on.ca
authors.forename: L
authors.initials: L
authors.lastname: Montgomery
authors.forename: M
authors.initials: M
authors.lastname: Macpherson
authors.forename: L
authors.initials: L
authors.lastname: Gerig
authors.forename: K
authors.initials: K
authors.lastname: Carty
authors.forename: G
authors.initials: G
authors.lastname: Fox
authors.forename: B
authors.initials: B
authors.lastname: Esche
authors.forename: B G
authors.initials: BG
authors.lastname: Clark
mesh_terms: D000368:Aged; D002280:Basal Cell Carcinoma / Q000000981:diagnostic imaging / Q000532:radiotherapy*; D006801:Humans; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000000981:diagnostic imaging / Q000532:radiotherapy*; D011880:Radiotherapy Planning, Computer-Assisted / Q000379:methods; D020266:Radiotherapy, Conformal / Q000379:methods; D012878:Skin Neoplasms / Q000000981:diagnostic imaging / Q000532:radiotherapy*; D014057:Tomography, X-Ray Computed