Difference between revisions of "Oral pathology"

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'''Oral pathology''' is a domain of dentistry.  In the context of [[anatomical pathology]], it can be lumped with [[head and neck pathology]].
'''Oral pathology''' is a domain of dentistry.  In the context of [[anatomical pathology]], it can be lumped with [[head and neck pathology]].  '''''Oral lesions''''' redirects here.


=Odontogenic tumours and cysts=
=Odontogenic tumours and cysts=

Revision as of 13:25, 12 November 2012

Oral pathology is a domain of dentistry. In the context of anatomical pathology, it can be lumped with head and neck pathology. Oral lesions redirects here.

Odontogenic tumours and cysts

Oral neoplasms

Peripheral fibroma

  • AKA focal fibrous hyperplasia, AKA peripheral ossifying fibroma, AKA fibroid epulis (old term), AKA fibroepithelial polyp.[1]
  • AKA oral fibroma.[2][3]

General

  • Most common oral cavity tumour.[3]
  • Female predominance (female:male = 2:1), usually 30-50 years old.[3]

Microscopic

Features:[6]

  • Fibrous stroma - key feature.
    • "Very pink" at low power.
  • +/-Collagen bundles, may be prominent.
  • Prominent (dilated) vessels.
  • Overlying (squamous) mucosa benign (flat).
    • +/-Hyperkeratosis +/-focal ulceration.[3]

Pigmented lesions of the oral cavity

A brief DDx of pigmented lesions:[7]

Smoker's melanosis

General

  • Benign.
  • Seen in ~20% of smokers.[7]
  • Presence of find (smoking) dose-dependent, i.e. longer heavier smokers are more likely to have it.

Gross

  • Typically labial gingvia or buccal mucosa.[7]

Microscopic

Features:

  • Basal melanosis.
  • +/-Melanin incontinence.

Image:

See also

References

  1. Mills, Stacey E; Carter, Darryl; Greenson, Joel K; Reuter, Victor E; Stoler, Mark H (2009). Sternberg's Diagnostic Surgical Pathology (5th ed.). Lippincott Williams & Wilkins. pp. 775. ISBN 978-0781779425.
  2. URL: http://emedicine.medscape.com/article/1080948-overview#aw2aab6b3. Accessed on: 20 August 2012.
  3. 3.0 3.1 3.2 3.3 Thompson, Lester D. R. (2006). Head and Neck Pathology: A Volume in Foundations in Diagnostic Pathology Series (1st ed.). Churchill Livingstone. pp. 240. ISBN 978-0443069604.
  4. Segura Saint-Gerons, R.; Ceballos Salobreña, A.; Toro Rojas, M.; Gándara Rey, JM. (Aug 2006). "Oral manifestations of Cowden's disease. Presentation of a clinical case.". Med Oral Patol Oral Cir Bucal 11 (5): E421-4. PMID 16878060.
  5. Oliveira, MA.; Medina, JB.; Xavier, FC.; Magalhães, M.; Ortega, KL. (2010). "Cowden syndrome.". Dermatol Online J 16 (1): 7. PMID 20137749.
  6. 6.0 6.1 Fernandez-Flores, A. (Jul 2010). "Solitary oral fibromas of the tongue show similar morphologic features to fibrous papule of the face: a study of 31 cases.". Am J Dermatopathol 32 (5): 442-7. doi:10.1097/DAD.0b013e3181c47142. PMID 20421776.
  7. 7.0 7.1 7.2 Kauzman, A.; Pavone, M.; Blanas, N.; Bradley, G. (Nov 2004). "Pigmented lesions of the oral cavity: review, differential diagnosis, and case presentations.". J Can Dent Assoc 70 (10): 682-3. PMID 15530266.