Central granular cell odontogenic tumor: a systematic review

Central Granular Cell Odontogenic Tumor of the Mandible: An Uncommon Presentation

Central granular cell odontogenic tumor (CGCOT) is a rare, benign odontogenic tumor resulting from the jaw bone, especially the mandible or maxilla. It affects women of middle age and usually occurs as a painless swelling of the mandibular premolar-molar area. CGCOT is characterized by the presence of granular cells, which are large, eosinophilic, granular-looking cells found in the tumor tissue. We report an unusual CGCOT in a 38-year-old male patient's mandibular region. We also describe the clinical, radiological, and pathological characteristics along with the immunohistochemical investigation of the tumor.

A Systematic Review of the Granular Cell Odontogenic Fibroma and Report of a New Case

BACKGROUND

Granular Cell Odontogenic Fibroma (GCOF) is a rare odontogenic neoplasm reported over time with different names. The purpose of this study is to review all available data on the GCOF in the scientific literature, with a summary of all reported cases and a report of a new case.

METHODS

This review was conducted following the PRISMA guidelines. An electronic search was performed up to November 2022.

RESULTS

Thirty-nine studies reporting fifty-three cases were included. GCOF is a rare neoplasm among the odontogenic tumors, with a higher prevalence in women of the middle-aged and white population. This lesion occurs mostly on the posterior region of the mandible. Furthermore, based on clinical, radiographic, and histopathologic features, conservative treatment was the most reported choice with recurrence reported in two cases.

CONCLUSION

GCOF remains controversial due to the still unsolved histogenesis.

Granular cell odontogenic tumor: report of a rare case and a review of literature

Background

Granular cell odontogenic tumor (GCOT) is a rare neoplasm with about 45 cases reported in the literature. It usually occurs in the posterior mandible of middle-aged women.

Case presentation

We report a case of asymptomatic GCOT in the posterior mandible of a 28 years old female and provide a literature review of GCOT cases. Some unusual features such as root resorption, displacement of inferior tooth canal, and multilocular appearance were considerable in this case.

Conclusions

Complete surgical excision of the lesion was beneficial for the patient.

Aggressive oral granular cell tumor with periorbital involvement: An unusual case

Granular cell tumor (GCT) of the oral cavity is rare and so is the involvement of the eye, orbit, and ocular adnexa. A 65-year-old male developed a posttraumatic ulceroproliferative mass over his left cheek for the past 1 year. The mass involved the periorbital region with accompanying blood-stained purulent discharge from multiple sinus tracts over this lesion for the past 6 months. Radiographs of the orbit suggested chronic osteomyelitis. The lesion was not responsive to treatment with antibiotics. Enlarged submandibular lymph node demonstrated reactive lymphadenitis on cytological examination. However, computed tomography scan of the paranasal sinus (PNS) revealed possibly a malignant mass extending into the maxillary sinus and left extraconal space. Surprisingly, histopathological examination and immunohistochemistry from a growth involving the left upper retromolar region that extended up to the midline and periorbital region suggested a diagnosis of GCT. This unusual and new presentation of GCT is not well known to the dentists and also to the ophthalmologists. It is imperative to examine anatomically neighboring structures, especially the eye, nasal cavity, PNSs, and oval cavity among other structures in an underlying pathology in either of these sites.

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

INTRODUCTION

Granular 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.

PRESENTATION

51 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.

DISCUSSION

This 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.

CONCLUSION

Within 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.

Recurrent ameloblastoma of the mandible with unusual granular cell component

Ameloblastomas can present in various clinical and histomorphologic patterns. The granular cell variant accounts for only 3.5% to 5% of ameloblastomas. The aim of this case report is to present an example of ameloblastoma with unusual granular cell component, affecting a 63-year-old woman, in which both the inner and peripheral layers of follicles composed exclusively by eosinophilic granular cells. Assessment of the immunohistochemical and histochemical profile of the lesion was performed and the challenges of such a diagnosis were also addressed.