Mixed odontogenic tumour with dentinoid and ghost cells

Area of Science:

• Oral Pathology
• Odontogenic Tumors
• Tumor Biology

Background:

• Ameloblastomas are typically non-inductive odontogenic tumors.
• Rarely, ameloblastomas may present with odontome-like features, termed odontoameloblastomas.
• Understanding ameloblastoma variations is crucial for accurate diagnosis and treatment.

Observation:

• A unique ameloblastoma case was observed in a 31-year-old female with a maxillary lesion.
• The tumor displayed characteristics of an adenomatoid odontogenic tumor.
• Microscopic examination revealed tumor cells inducing dentinoid formation without enamel, and the presence of ghost cells.

Findings:

• The ameloblastoma demonstrated inductive capabilities, producing dentinoid material.
• Absence of enamel formation despite dentinoid induction was a key finding.
• The presence of ghost cells further contributed to the unusual nature of the tumor.

Implications:

• This case expands the known spectrum of ameloblastoma behavior.
• It highlights the potential for inductive phenomena in ameloblastomas, mimicking other odontogenic tumors.
• Further research into the cellular mechanisms driving these inductive processes is warranted.