Granular cell tumour developing in the background of a previous mandibular giant cell lesion: Case report

• Granular cell tumours are rare in the mouth.
• A unique case of granular cell tumour in the site of a previous giant cell lesion of the anterior mandible is presented here.
• Curettage of the lesion along with conservative excision of the overlying soft tissue extension is an acceptable treatment option.

IntroductionGranular cell tumours of the mandible are very rare. We present a unique case which has developed at the site of a previous giant cell lesion.Presentation51 year old Caucasian lady had excision of a recurrent giant cell lesion of the anterior mandible. Follow up showed evidence of radiographic recurrence. However, further biopsies from the same site showed granular cell tumour with soft tissues extension. The patient remains well on long term follow up with no evidence of recurrence.DiscussionThis case is unique because the granular cell tumour has evolved from the site of a recurrent giant cell lesion. Conservative surgical excision was an adequate treatment option.ConclusionWithin the limitations of our case study, a correlation between granular cell tumour and giant cell lesion is possible. However, more research is needed to prove this.