<s>[INST] I just came from the Oral Surgeon and he examined me for a small (no pain) smooth white spot in the vascular ducts on the underside of my tongue. He advised me to just continue to watch it and return in 3 months for reevaluation. I am trying to recall the name that he used to identify this spot. (something like Phibolist) He said it was a calcium deposit similar to a kidney stone. Do you possibly know the name of this stone? [/INST] Sialoliths may be the name mentioned to you. Have you been told that your salivary gland duct is blocked? Calcium deposits under the tongue are not uncommon. Your salivary flow is important to the health of your mouth. Salivary flow reduction can cause Chat Doctor.  Wharton's Duct is located under the tongue. You can try to stimulate the flow of saliva by sucking on something sour such as a lemon. Increased flow can push out calcium deposits and prevent the need for surgical removal. A Phlebolith, by definition, is a calcification in a vein or blood vessel. Vascular malformations may present with these. Sometimes, although present at birth, these may become prominent or increase later in life.  Swelling may become evident. The phlebitis may be seen on an x-ray. Additional studies including ultrasound and MRI may be required to determine vessel involvement. Hematomas are common with swelling, but less common with a phlebolith association in the mouth. </s>