Treatment of Breast Fibroadenoma With High Intensity Focused Ultrasound (HIFU)

Inclusion Criteria: * Female patients 18 to 45 years old with at least one diagnosed breast fibroadenoma * Diagnosis of fibroadenoma must be based on: * clinical examination * ultrasound image alone for patients Under 35 years old. For women older than 35 years, a mammogram will be performed in addition to ultrasound. the BI-RADS score of this mammogram must be less than 3. In all cases where an uncertainly exists, the patient will not be included. * histological confirmation after core needle biopsy by two independant readers (biopsy must be performed at least two weeks before therapy unless a micro biopsy has been already done less than 3 months before inclusion visit and histopathology slices are available) * the requirements for the distance from the skin and the following régions of the fibroadenoma are: * depth anterior edge \< 19.4mm * nodule thickness \> 7.3 mm * depth of posterior edge \> 12.5 mm * depth to rib cage \> 10mm * patient's fibroadenoma size is greater to equal to 0.3 cc (measured by ultrasound on the day of the procedure) * Lesions should be less than 20 mL * The lesion must be sonographically visible * Lesions presented during previous surveillance a minimum 20% increase volume AND/OR * Patient are presenting a pain level \>= 3 as meaured on the VAS during the last 30 days AND/OR * Patient are presenting a anxiety level \>= 3 as meaured on the VAS during the last 30 days before selection visit * Fibroadenoma is palpable * Patient candid…