hi and thank for the query, \examination of a mass, depending on the growth an nature could conceal particular properties of this mass. the growth speed, associated signs and symptoms like tiredness and weight loss , presence or absence of fever are very important in the evaluation pocess of this mass. ASt times a clinical examination on its own might not be sufficient. A Ct scan f the head especially around this region could be a great tools to actually proof the presence of the mass, describe the borrs, the consistencyand giev an idea of the intergrity of the neighbouring structures/ Meeting an ENT surgeon or Odonotostomatologist for advice and probable CT scans could be helpful. Thanks and best regards, Luchuo, MD.