Patient-specific simulator for training residents in US-guided biopsy procedures in the salivary glands and thyroid. Image segmentation and virtual 3D modeling from a healty volounteer CT scan. 3D printing: trachea, vessels, mandible and specific molds of the neck and glands. Lesions included in glands molds during casting of organic mixture. Casting of agar-agar inside the neck mold after the anatomical structures were positioned.