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Peripheral ameloblastoma with clear cell differentiation.

K H Ng1, C H Siar

  • 1Division of Stomatology, Institute for Medical Research, Kuala Lumpur, Malaysia.

Oral Surgery, Oral Medicine, and Oral Pathology
|August 1, 1990
PubMed
Summary
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This case report describes a rare mandibular peripheral ameloblastoma with a clear cell component. Understanding this variant is crucial for accurate diagnosis and treatment of jaw tumors.

Area of Science:

  • Oral pathology
  • Odontogenic tumors
  • Tumor biology

Background:

  • Ameloblastoma is a common odontogenic tumor, typically arising centrally in the jaw.
  • Peripheral ameloblastomas occur on the gingiva or alveolar mucosa, separate from bone.
  • Clear cell changes in ameloblastoma are infrequent, necessitating careful differential diagnosis.

Observation:

  • A case of mandibular peripheral ameloblastoma exhibiting a distinct clear cell component is presented.
  • The clear cells feature vacuolated cytoplasm and vesicular/pyknotic nuclei.
  • These cells form clusters or transition from typical acanthomatous ameloblastoma areas.

Findings:

  • The clear cell ameloblastoma represents a morphologic variant of peripheral ameloblastoma.
  • Histopathological analysis reveals specific cellular and nuclear characteristics of the clear cells.

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  • Differential diagnosis includes other clear cell-bearing odontogenic and non-odontogenic tumors.

    • Implications:

    • Accurate identification of the clear cell component is vital for correct diagnosis.
    • This finding expands the known histopathological spectrum of ameloblastoma.
    • Understanding this variant aids in distinguishing it from other jaw neoplasms with clear cells.