DOPA412: Oral Pathology 2 Quiz

Oral Soft Tissue Lesions

• Vesicle: Small fluid-filled lesion, either single or grouped, less than 1cm in size containing serum, plasma, or blood.
• Bulla: Larger version of a vesicle, characterized by being more than 1.0cm in size.
• Pustule: Vesicle-like lesion containing pus.

Classification of Lesions

• Primary Lesions:

  • Congenital lesions or those emerging directly due to pathologic, traumatic, or physical injury to tissue.

• Secondary Lesions:

  • Develop due to progressive, degenerative, or reparative changes arising from primary lesions.

Primary Lesion Types

• Macule: Flat, circumscribed area varying in size, color, or shape; can be any color but remains flat.
• Patch: A macule that is larger in size.
• Plaque: Flat area with raised edges, typically thicker than a macule.

Elevated Lesions

• Papule: Elevated tissue, may be punctate or linear, does not exceed 1.0cm in size.
• Nodule: Similar to a papule but larger and deeper, exceeding 1.0cm in size. Can be identified as a torus mandibularis in diagnosis.
• Tumescence or Tumor: General term for swelling of any color, indicating an increase in tissue.

Secondary Lesion Types

• Erosion: Gradual loss of superficial tissue without extending beyond the topmost layer.
• Ulcer: Loss of surface tissue due to necrotic inflammatory tissue sloughing, extending into the lamina propria.

Hyperplasia vs. Hypertrophy

• Hyperplasia: Tissue increase in size due to a rise in the number of cells.
• Hypertrophy: Tissue increases in size due to enlargement of the existing cells.