Oral Pathology

Card Set Information

Author:
pcandrin
ID:
250107
Filename:
Oral Pathology
Updated:
2013-12-02 00:16:03
Tags:
Neoplasia
Folders:

Description:
Chapter 7; Part 2
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user pcandrin on FreezingBlue Flashcards. What would you like to do?


  1. Odontogenic Tumors
    • 1. Derived from tooth-forming tissues -enamel
    • -cementum

    2. Neoplasm of cells or tissues that initiate odontogenic processes (teeth formation).

    3.Mostly benign (Rare to be malignant odontogenic tumor)
  2. (6) Types of Odontogenic Tumors:
    • 1. Ameloblastoma
    • 2. Calcifying Epithelial Odontogenic Tumor
    • 3. Adenomatoid Odontogenic Tumor
    • 4. Calcifying Odontogenic Cyst
    • 5. Odontogenic Myxoma
    • 6. Benign Cementoblastoma
  3. Odontogenic Tumor:  Ameloblastoma
    Maxilla or Mandible

    Unencapsulated tumor --> Infiltrates the surrounding tissue

    • Classic radiographic appearance:
    • -multilocular
    • -soap-bubble radiolucency
    • *Can also appear as a unilocular radiolucency

    • 80% arise in the Mandible:
    • -Molar
    • -Ramus

    • Signs & Symptoms:
    • -Slow Growing
    • -Asymptomatic
    • -Swelling of the affected bone

    • Treatment includes:
    • -Complete surgical removal
    • -Recurrence is common

    *Benign, Slow Growing, but locally aggressive.
  4. Odontogenic Tumor: 
    Calcifying Epithelial Odntogenic Tumor
    Occurs less than Ameloblastoma

    • Radiographic Appearance:
    • -Uni or Multilocular radiolucency w/calcifications within.

    Mandible to Maxilla (2:1)

    • Areas most commonly affected: 
    • -Premolar
    • -Molar

    • Tx:
    • -Complete surgical Excision
  5. Odontogenic Tumor:
    Adenomatoid Odontogenic Tumor
    Encapsulated, Benign Tumor

    70% occur in females; 20 or younger

    • Common Areas:
    • 70% occur in the anterior, mostly maxilla

    Often associated w/impacted teeth

    • Signs and Symptoms:
    • -Localized swelling
    • -Asymptomatic

    • Radiographic Appearance:
    • -Well circumscribed radiolucency
    • -May be associated w/ an impacted tooth

    • Tx:
    • -enucleation

    *Recurrence is Rare
  6. Odontogenic Tumors:
    Calcifying Odontogenic Cyst
    • Radiographic Appearance:
    • -Well defined, Uni or Multilocular Radiolucency (may see calcification w/in)

    • Seen in:
    • Adults  age 40 & younger

    • Tx:
    • -Surgical enucleation

    *Does not recur
  7. Odontogenic Tumors:
    Odontogenic Myxoma
    Benign lesion occuring b/t age 10-29.

    • Common Areas:
    • -Posterior Mandible

    • Radiographic Appearance:
    • -Multilocular, honeycombed appearance w/poorly defined margins

    • Surgical Excision:
    • -Recurrence rate is 25%
  8. Odontogenic Tumor:
    Benign Cementoblastoma
    Cementum-producing lesion that is fused to the root of a vital tooth. 

    • Common Areas:
    • -Continuity of the root of a mandibular premolar or molar

    • Signs & Symptoms:
    • -Pain
    • -Obliteration of the apex of the affected tooth is common

    • Radiographic Appearance:
    • -Well defined, radiopaque mass w/a surrounding radiolucent halo (halo= periodontal ligament space).

    • Tx: 
    • -Enucleation & extraction of the affected tooth.
  9. Odontoma:
    Most Common type of odontogenic tumors

    • Composed of:
    • -Enamel
    • -Dentin
    • -Cementum
    • -Pulp

    • Demographic: 
    • -Adolescence⇾ failure of permanent tooth to erupt.

    • Tx:
    • -Surgical excision
    • -Generally no recurrence occurs

    *Most Odontomas are small, but larger lesions cause displacement of teeth & swelling
  10. (2) Types of Mixed Odontogenic Tumors:
    • 1. Compound Odontoma
    • 2. Complex Odontoma
  11. Compound Odontoma
    A collection of numerous small teeth

    • Radiographic Appearance:
    • -Cluster of numerous miniature teeth surrounded by a radiolucent halo

    • Common Areas:
    • Located in the Anterior Maxilla
  12. Complex Odontoma
    • Consists of:
    • -Enamel
    • -Dentin
    • -Cementum
    • -Pulp
    • *Does not resemble a normal tooth

    • Common Areas:
    • -Posterior Mandible

    • Radiographic Appearance:
    • -Radiopaque mass surrounded by a thin radiolucent halo
  13. Tumors of Never Tissue:
    Nuerofibroma
    • aka SCHWANNOMA
    • Benign tumors derived from nerve tissue
    • Can occur at any age

    • Common Areas:
    • -IO:  Tongue

    • Tx:
    • -Surgical Excision:
    • -Generally do not recur

    • von Recklinghaus Disease:
    • -Inherited Disorder
    • -Multiple neurofibromas of the skin and other sites
  14. (2) Types of Vascular Tumors:
    • 1. Hemangioma
    • 2. Kaposi Sarcoma
  15. Hemangioma (Vascular Tumor)
    Benign proliferation of capillaries (common vascular lesion)

    • Most present @ birth
    • Common Areas:
    • -Head & Neck (50% or more)
    • -IO:  Tongue
    • *Involvement of tongue may lead to macroglossia

    • Tx:
    • Variable
    • *Some undergo spontaneous remission
  16. Kaposi Sarcoma (Vascular Tumor)
    Malignant vascular tumor

    • Clinical Appearance:
    • -Purlple Macules
    • -Plaques
    • -Exophytic Lesions
    • Common Areas:
    • -Skin & Oral tissues
    • -Gingiva & Hard Palate 

    Tx:

    • -Surgical excision
    • -Radiation Therapy
    • -Chemotherapy

    *Recurrence is common in HIV+ Pts & disease may progress rapidly
  17. (3) Types of Tumors of Bone
    • 1. Torus
    • 2. Exocytosis
    • 3. Osteoma and Osteosarcoma
  18. Torus (Tumor of the Bone)
    • Benign lesion of normal compact bone; bony hard lobulated mass
    • -Asymptomatic

    • Common Areas:
    • -Midline of palate
    • -Lingual aspect of mandible

    • Demographic:
    • -More prevelant in women than men
    • -Hereditary basis

    -Surface ulceration may occur if traumatized

    • Tx: 
    • None usually necessary
  19. Exocytosis (Tumors of Bone)
    Small Nodular growth of normal compact bone

    -Asymptomatic, bony hard nodules on the buccal aspect of the alveolar ridges

    May see an increase in persons who grind or have bruxism.

    • Tx: 
    • None usually indicated
  20. Osteoma & Osteosarcoma
    • Osteoma:
    • -Asymptomatic benign tumor
    • -Composed of normal compact bone
    • -Slow growing
    • Common Areas:
    • -posterior mandible


    *Large osteomas may cause expansion of the involved bone.

    • Gardner's Syndrome:
    • -Multiple supernumerary teeth
    • -Multiple osteomas
    • -Intestinal Polyposis
  21. (3) Types of Tumors of Blood-Forming Tissues:
    • 1. Leukemia
    • 2. Lymphoma
    • 3. Multiple Myeloma
  22. Leukemia: (Blood Forming Tumor)
    Broad group of disorders characterized by an overproduction of atypical WBCs

    WBCs multiply & spill over into the circulating blood & tissues.

    • Acute leukemia:  common in children
    • Chronic leukemia:  seen in adults

    *More common in men than women

    • Tx: 
    • -chemotherapy
    • -radiation therapy
    • -corticosteroids

    • Prognosis:
    • -Depends on the extent of disease & type of leukemia
  23. Lymphoma: (Blood Forming Tumor)
    -Malignant tumor of lymphoid tissue.

    • Clinical Appearance:
    • -Gradual enlargement of involved lymph nodes
    • Common Areas:
    • -IO location is Tonsilar area

    • Demographic:
    • -More common in Men than Women

    • Tx:
    • -Radiation
    • -Chemotherapy
    • -Surgery or a Combinaiton of Tx options.
  24. Multiple Myeloma:  (Blood Forming Tumor)
    Malignant proliferation of plasma cells that causes destructive lesions in bone.

    • Demographic:
    • -Patients age 70
    • -More common in Men than Women

    • Signs & Symptoms:
    • -Bone pain
    • -Swelling
    • -Pathologic fractures of bone is common (shows as multiple radiolucent lesions)

    • Common Areas:
    • -Mandible (More common)
    • -Maxilla
    • Also seen in :
    • -skull
    • -spine
    • -ribs
    • -pelvis
    • -long bones

    • Tx:
    • -Chemotherapy
    • -Radiation

    • Prognosis:
    • -Poor; Less than 20% of Pts survive 5 years
    • -Most common cause of death is renal failure

What would you like to do?

Home > Flashcards > Print Preview