Exam 6-NEOPLAMS of Bone-Benign Flashcards Preview

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Flashcards in Exam 6-NEOPLAMS of Bone-Benign Deck (53):
1

Benign Vs. Malignant: Benign- Asymptomatic, grows _____ and by expansion: _____ teeth and ______ the cortex, symmetrical, does not metastasize

slowly...displaces...expands

2

Benign Vs. Malignant: Malignant- Usually symptomatic, grows more ______, ______ and destroys adjacent structures, often asymmetrical, ragged or poorly defined borders and destroys cortex, lays down bone ______ the cortex, capable of metastasis

rapidly...INVADES...OUTSIDE

3

What are the 4 Bone Neoplasms/Growths that are BENIGN?

1.Exostoses 2.Osteoma 3.Osteiod Osteoma 4.OsteoBlastoma

4

What are the 3 bone neoplasms that are Cartilagenous in nature??

1.Chondroma 2.Chondromyxoid fibroma 3.Benign ChondroBlastoma

5

What is the bone neoplasm that is of Fibrous origin?

Desmoplastic Fibroma

6

What is a localized proliferation of bone that arises from the cortical plate?

an Exostoses

7

An exostoses is a localized proliferation of bone that arises from the _______ plate with minimal to NO _______ bone involvement

cortical...medullary

8

What are the fancy Latin names for exostoses on the mandible? maxilla?

Torus Palatinus, Torus Mandibularis

9

What is the most common site for an exostosis?

Buccal area of maxillary or mandibular alveolar ridge is the most common site

10

Are exostoses often unilateral or bilateral?

Bilateral

11

What age group is most affected by exostoses?

adults

12

Although exostoses are just a bony hard, elevated, nodular lesion and are asymptomatic, the thin overlying mucosa may ______ easily

ULCERATE

13

Where are Torus Palatinus ALWAYS located???

midline of the hard palate

14

The etiology of Torus Palatinus is probably _______

multifactorial

15

Where is a Torus Mandibularis located?

Lingual Premolar area of the mandible

16

What % of Torus Mandibularis are bilateral?

90%!

17

What is a localized proliferation of bone that MAY be indistinguishable from tori, but it does have the distinguishing factor of involving the medullary bone OR cortical bone (torus is just cortical)???

an Osteoma

18

The TYPE of bone in an osteoma is variable, from dense, compact ______-like bone without significant marrow to
______ bone with trabecular pattern and marrow

cortical...Cancellous

19

Osteomas are almost EXCLUSIVE to what region of the body??

craniofacial skeleton

20

Osteomas are MOST OFTEN _______ lesions and are asymptomatic

SOLITARY

21

Getting a bit more specific, we know ostemas are almost exclusive to the craniofacial skeleton, but where in this region is their predilection?

sinuses

22

Osteomas GENERALLY have a limited growth potential, BUT they CAN reach a large size and produce ______

deformity

23

What is the NUMBER 1 thing for dentists to think about when they see an osteoma?

GARDNER's SYNDROME

24

Which benign bone lesion is GARDNER's SYNDROME associated with??

Osteomas

25

An aside, probably not on the test but mentioned in class-what % of Pts with Gardner's Syndrome will present with osteomas?

80% (New England Journal of Medicine)

26

What type of genetic inheritance is Gardner's Syndrome?

Autosomal Dominant

27

Ok, ok I get it. Gardner's syndrome has multiple osteomas...but WHERE are they most commonly found??

Angle of the Mandible

28

Along with the classic sign of osteomas in Gardner's syndrome, what other dental anomaly is it associated with?

supernumerary teeth

29

What are the three types of cysts/tumors/and polyps found in patients with Gardner's Syndrome?

1.Muliple Epidermoid Cysts 2.Desmoid Tumors 3.Multiple Adenomatous polyps of the colon and rectum

30

Which lesion in patient's with Gardner's Syndrome transforms to MALIGNANT 100% OF THE TIME?

the Adenomatous Polyps of the colon/rectum

31

What is the "TRUE" neoplasm of bone that is RARE? How RARE is it?

An Osteiod Osteoma...less than 1% of all bone tumors

32

the RARE Osteoid Osteoma has a wide age range but 85% of the time will affect people less than ___ years of age..Which sex does it affect more?

30...Males 2:1

33

What are the two CLASSIC clinical symptoms/treatments of an osteiod osteoma?

1.Nocturnal Pain 2.Relieved by Aspirin

34

Oooo Osteoid Osteomas are juicy with distinguishable traits....what is the CLASSIC radiographic appearance?

"target"

35

Which benign bone neoplasm has the radiographic appearance of a "target"?

osteoid osteoma

36

Which benign bone neoplasm presents with noctornal pain and is relieved by aspirin?

osteoid osteoma

37

Radiographic representation of osteoid osteomas: Small lesion, less than ____ in diameter Central _____
Peripheral radiolucent “_____” and a _______ rim

1cm...opacity..."halo"....corticated

38

Which true neoplasm of bone is really similar to an osteoid osteoma in that they are RARE and are less than 1% of all bone tumors?

OsteoBlastoma

39

Osteoblastomas have a propensity for occurrence in which region of the body? Which area MORE SPECIFICALLY?

craniofacial skeleton...the MANDIBLE

40

Much like an osteoid osteoma, an osteoblastoma is found in a wide age range, but most patients are usually under age ___ and the gender of ______ is 2:1

30..males

41

One distinguishing factor between an ostroid osteoma and and an osteoblastoma is the size of the lesion. Osteiod osteomas are __cm whereas osteoblastomas are ____

OO: 1cm...osteoblastomas over 2cm

42

What is a COMMON symptom of an osteoblastoma? How is this distinct from an osteoid osteoma?

pain is a common symptom...1.not nocturnal pain 2.not releived by aspirin

43

Osteoblastomas may produce SIGNIFICANT ________ and deformity

expansion

44

What is the ONLY benign neoplasm of cartilage origin we will discuss?

Chondromas

45

What age range usually presents with chondromas and where are they more commonly found?

20-40 year olds and more common in extremities

46

Chondromas are exceedingly rare in the _____ region and most diagnosed are ________ chondrosarcomas

head and neck...low grade

47

Which two benign cartilage neoplasms are so rare in the jaw that we are not even going to talk about them?? :)

Chondro-Myxoid Fibroma and ChondroBlastoma

48

What is the name for a benign locally aggressive fibrous boney neoplasm?

Desmo-Plastic Fibroma

49

A _________ is the bone equivalent of soft tissue fibromatosis

desmo-plastic fibroma

50

What age groups present with desmoplastic fibromas more often?

children and young adults

51

Desmoplastic Fibromas occur 85% of the time in which arch? What two specific locations in this arch?

Mandible...posterior mandible and ascending ramus

52

The only definite radiographic feature of a Desmoplastic Fibroma is that it is _________, everything else goes both ways: unilocular to multilocular, borders well defined
or poorly defined

radiolucent

53

Treatment of Desmoplastic Fibromas-curettage shows a ___% recurrence and resection shows a ___% recurrence.

curettage-70%...resection 20%