There is little reconstruction post parotidectomy. However, the goals of reconstruction are both functional (e.g. management of weakness of the lower lip or oral continence, reconstruction of the facial nerve and prevention of Gustatory sweating) and aesthetic2. A few possible methods have been described for reconstruction. Primary reconstruction of small defects are usually with local fascial flaps2 e.g. SMAS flaps5 and large defects with muscle flaps2 e.g. Sternocleidomastoid8. Secondary reconstruction involves fat grafting5 or correction of lip asymmetry. The main method of reconstruction involves the defect being analysed and subjectively "compared" to the contralateral side2. Recent papers have attempted to improve accuracy. Some have reported abnormal volumes i.e. tumour size. However, they have not reported normal volumes (i.e. size of defect)5.MRI has been used to measure volume of defects left behind, however this is not totally accurate as it only measured the largest transverse dimension and requires further expensive imaging5. Therefore to improve outcomes improved accuracy on the dimensions of the defect is required before reconstruction.