Chapter 7 - part 3 Flashcards Preview

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Flashcards in Chapter 7 - part 3 Deck (52)
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1

Tumors of soft tissues

Tumors of fat
Tumors of nerve tissue
Tumors of muscle
Tumors of blood vessels (vascular)

2

A benign tumor of mature fat cells

Lipoma

3

Clinical appearance of lipoma and where it occurs

A yellowish mass surrounded by a thin layer of epithelium
Most commonly located on the buccal mucosa and the vestibule

4

Lipoma mostly occurs in individuals over the age

40

5

The two tumors of the nerve tissue that look the same

Neurofibroma and schwannoma

6

Benign tumors derived from Schwann cells in nerve tissue

Neurofibroma and shwannoma

7

Common place for neurofibroma and schwannoma

The tongue is the most common intraoral location
May occur at any age with no sex predilection

8

Neurofibromatosis

Multiple neurofibromas on the skin, in internal organs, and within bone.
Malignant tumors are reported to rise in 5% of individuals with this disorder

9

Tumors of muscle

Rhabdomyoma and leiomyoma
Extremely uncommon in the oral cavity

10

Rhabdomyoma

A benign tumor of striated muscle

11

Leiomyoma

A benign tumor of smooth muscle

12

Vascular tumors

Hemangioma
Lymphangioma
Malignant vascular tumors

13

A benign proliferation of capillaries, considered to be a developmental lesion

Hemangioma

14

Capillary hemangioma

Contains numerous small capillaries

15

Cavernous hemangioma

Contains larger blood vessels

16

Hemangioma

Most are present at birth
More than half the occur develop in the head and neck region
Tongue is the most common intraoral location

17

A benign tumor of lymphatic vessels

Lymphangioma

18

Lymphangioma

Most are present at birth
Less common then hemangiomas
Half arise in the head and neck area
No sex predilection

19

Most common place for lymphangioma

Intraorally, the most common location is the tongue where it is an ill-defined mass with a pebbly surface

20

Malignant vascular tumors

Kaposi sarcoma a malignant vascular tumor may arise in multiple sites, including the skin and oral mucosa

21

Kaposi sarcoma and HIV

Lesions are often seen in the oral cavity as purple merciless, plaques, or exophytic tumors
Most commonly on hard palate and gingiva
May also occur in patients with other forms of immunodeficiency

22

Tumors of melanin-producing cells

Melanotic nevi
Malignant melanoma

23

Benign tumor of melanocytes called nervus cells

Melanocytic nevus

24

Melanocytic nevus

Can arise on the skin or the oral mucosa
Intraoral tumors consist of tan-to-brown macules or papules
Can be malignant

25

Where does melanocytic nevus most often occur

Hard palate or buccal mucosa

26

Assessing pigmented lesions

Asymmetric shape
Borders irregular
Color
Diameter- greater than 6 mm
Evolving

27

A malignant tumor of melanocytes

Malignant melanoma

28

Malignant melanoma

Most arise on the skin in response to prolonged sun exposure to sunlight
Usually a rapidly enlarging blue-to-black mass
An aggressive tumor with unpredictable behavior and early metatasis

29

Where is malignant melanoma location in mouth

Most common intraoral locations are the palate and maxillary gingiva
usually occurs in adults over 40 years of age

30

Tumors of bone and cartilage

Osteoma
Osteosarcoma
Tumors of cartilage