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ORAL PATHOLOGY! > Exam 6-NEOPLAMS of Bone-Benign > Flashcards

Exam 6-NEOPLAMS of Bone-Benign Flashcards

1
Q

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

A

slowly…displaces…expands

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2
Q

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

A

rapidly…INVADES…OUTSIDE

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3
Q

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

A

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

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4
Q

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

A

1.Chondroma 2.Chondromyxoid fibroma 3.Benign ChondroBlastoma

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5
Q

What is the bone neoplasm that is of Fibrous origin?

A

Desmoplastic Fibroma

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6
Q

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

A

an Exostoses

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7
Q

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

A

cortical…medullary

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8
Q

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

A

Torus Palatinus, Torus Mandibularis

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9
Q

What is the most common site for an exostosis?

A

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

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10
Q

Are exostoses often unilateral or bilateral?

A

Bilateral

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11
Q

What age group is most affected by exostoses?

A

adults

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12
Q

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

A

ULCERATE

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13
Q

Where are Torus Palatinus ALWAYS located???

A

midline of the hard palate

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14
Q

The etiology of Torus Palatinus is probably _______

A

multifactorial

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15
Q

Where is a Torus Mandibularis located?

A

Lingual Premolar area of the mandible

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16
Q

What % of Torus Mandibularis are bilateral?

A

90%!

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17
Q

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)???

A

an Osteoma

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18
Q

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

A

cortical…Cancellous

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19
Q

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

A

craniofacial skeleton

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20
Q

Osteomas are MOST OFTEN _______ lesions and are asymptomatic

A

SOLITARY

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21
Q

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

A

sinuses

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22
Q

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

A

deformity

23
Q

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

A

GARDNER’s SYNDROME

24
Q

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

A

Osteomas

25
Q

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

A

80% (New England Journal of Medicine)

26
Q

What type of genetic inheritance is Gardner’s Syndrome?

A

Autosomal Dominant

27
Q

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

A

Angle of the Mandible

28
Q

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

A

supernumerary teeth

29
Q

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

A

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

30
Q

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

A

the Adenomatous Polyps of the colon/rectum

31
Q

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

A

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

32
Q

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?

A

30…Males 2:1

33
Q

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

A

1.Nocturnal Pain 2.Relieved by Aspirin

34
Q

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

A

“target”

35
Q

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

A

osteoid osteoma

36
Q

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

A

osteoid osteoma

37
Q

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

A

1cm…opacity…“halo”….corticated

38
Q

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?

A

OsteoBlastoma

39
Q

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

A

craniofacial skeleton…the MANDIBLE

40
Q

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

A

30..males

41
Q

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

A

OO: 1cm…osteoblastomas over 2cm

42
Q

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

A

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

43
Q

Osteoblastomas may produce SIGNIFICANT ________ and deformity

A

expansion

44
Q

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

A

Chondromas

45
Q

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

A

20-40 year olds and more common in extremities

46
Q

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

A

head and neck…low grade

47
Q

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

A

Chondro-Myxoid Fibroma and ChondroBlastoma

48
Q

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

A

Desmo-Plastic Fibroma

49
Q

A _________ is the bone equivalent of soft tissue fibromatosis

A

desmo-plastic fibroma

50
Q

What age groups present with desmoplastic fibromas more often?

A

children and young adults

51
Q

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

A

Mandible…posterior mandible and ascending ramus

52
Q

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

A

radiolucent

53
Q

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

A

curettage-70%…resection 20%

ORAL PATHOLOGY! (40 decks)

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