Please have your sister checked by a dentist or ENT (ear nose and throat specialist). We do have 2 dentists who post on here, hopefully one of them will answer your question. Its probably not something that can be diagnosed over the computer, just like an auto mechanic cant assess the broken car over the phone.

It could be just irritation from the tooth. Only a professional who does a thourough oral screening will be able to tell if it looks serious enough for a biopsy. Having a biopsy is the only way to tell for sure if its cancerous. Wishing your sister the best of luck with this.


Christine
SCC 6/15/07 L chk & by L molar both Stag I, age44
2x cispltn-35 IMRT end 9/27/07
-65 lbs in 2 mo, no caregvr
Clear PET 1/08
4/4/08 recur L chk Stag I
surg 4/16/08 clr marg
215 HBO dives
3/09 teeth out, trismus
7/2/09 recur, Stg IV
8/24/09 trach, ND, mandiblctmy
3wks medicly inducd coma
2 mo xtended hospital stay, ICU & burn unit
PICC line IV antibx 8 mo
10/4/10, 2/14/11 reconst surg
OC 3x in 3 years
very happy to be alive smile