Oral Pathology Ch. 7

Only about ____% of patients with chondrosarcoma involving the jaws survive years after the diagnosis.

30

Approximately________% of leukoplakias examined microscopically demonstrate epithelial dysplasia.

5 to 25

Which of the following tumors occur most frequently in the anterior part of the jaws?

Adenomatoid odontogenic tumor

How does an adenomatoid odontogenic tumor differ from a dentigerous cyst on radiographs?

It extends beyond the cementoenamel junction and can involve 50% to 60% of the root.

Which of the following choices is the most common salivary gland neoplasm?

Pleomorphic adenoma.

Which of the following statements is true of malignant melanoma?

Primary malignant melanoma of the oral cavity is rare.

Which of the following statements is true of the odontogenic myxoma?

The tumor may become quite large and cause displacement of teeth.

Multiple myeloma is a systemic, malignant proliferation of:

plasma cells.

Most ameloblastomas are located in the:

posterior mandible

Malignant melanoma usually presents as a/an:

rapidly enlarging blue-to-black mass.

A basal cell carcinoma will __________metastasize.

rarely

Patients who have undergone radiation therapy for malignant tumors of the head and neck often experience severe xerostomia as a result of radiation damage to _______tissue.

salivary gland

The most common intraoral location for a neurofibroma is the:

tongue.

The most common location for an intraoral lymphoma is the:

tonsillar area.

A central mucoepidermoid carcinoma is derived either from salivary gland tissue trapped within bone or from the:

transformed epithelial lining of a dentigerous cyst.

As a general rule, a patient should be referred to an oral and maxillofacial surgeon or dermatologist to have a biopsy performed on any nonhealing ulcer of the skin or lips that has been present for more than:

10 days.

Sarcomas are _________common than carcinomas.

10 times less

Which of the following choices represents characteristics of malignant tumors?

Ability to spread to distant sites

Which of the following salivary gland tumors has a "Swiss cheese" appearance under the microscope?

Adenoid cystic carcinoma

Ghost cells are characteristic of which of the following lesions?

Calcifying odontogenic cyst

Which of the following tumors will most closely resemble an ameloblastoma with ameloblast-like epithelial cells surrounding areas that resemble stellate reticulum?

Calcifying odontogenic cyst

Which of the following choices is not regarded as an initiating factor in the development of oral cancer?

Chronic irritation

Which of the following choices is the most common malignant salivary gland tumor in children?

Mucoepidermoid carcinoma

Which of the following tumors is an unencapsulated, infiltrating tumor composed of a combination of mucous cells interspersed with squamouslike epithelial cells.

Mucoepidermoid carcinoma

_________means now growth.

Neoplasia

The ameloblastic fibroma:

Occurs more commonly in males than females.

Which of the following statements is true of the hemangioma?

They may occur in adults as a response to trauma and represent an abnormal proliferation of blood vessels during the healing process.

Which of the following statements is true of epithelial dysplasia?

Unlike squamous cell carcinoma, cellular changes in epithelial dysplasia may revert to normal if the stimulus, such as tobacco smoking, is removed.

Which of the following statements is true of erythroplakia?

When examined microscopically, 90% of cases of erythroplakia demonstrate epithelial dysplasia or squamous cell carcinoma.

A benign tumor of salivary gland origin is called (a/an):

adenoma.

The pleomorphic adenoma:

appears as a slowly enlarging, nonulcerated, painless, dome-shaped mass.

A lipoma:

appears clinically as a yellowish mass surfaced by a thin layer of epithelium.

A compound odontoma:

appears on radiograph as a cluster of miniature teeth surrounded by a radiolucent halo.

The adenomatoid odontogenic tumor features ductlike structures that:

are actually ameloblast-like cells that resemble ducts because of their circular arrangement.

Squamous cell carcinomas on the vermilion border of the lips and skin of the face are:

associated with color changes of the vermilion border from dark pink and uniform to mottled grayish pink.

Intraoral minor salivary gland tumors are most commonly located:

at the junction of the hard and soft palate.

A/An____________is composed of islands and sheets of polyhedral epithelial cells with deposits of amyloid-like material that is thought to represent a form of abnormal enamel protein.

calcifying epithelial odontogenic tumor

Severe epithelial dysplasia involving the full thickness of the epithelium is called:

carcinoma in situ.

Kaposi sarcoma is:

caused by a human herpesvirus.

The peripheral ossifying fibroma is most likely derived from:

cells of the periodontal ligament.

The Warthin tumor:

contains sheets of lymphocytes that surround the cystic structures.

The most common intraoral location for the pleomorphic adenoma is the:

palate.

Idiopathic leukoplakia:

does not have a specific known cause.

Anaplastic means the tumor:

does not resemble the tissue from which it was derived.

The majority of adenomatoid odontogenic tumors occur in _________years of age.

females under 20

Verrucous carcinoma:

has a better prognosis than other forms of squaamous cell carcinomas.

A________is a benign proliferation of capillaries.

hemangioma

The_____________is a unique type of monomorphic adenoma.

papillary cystadenoma lymphomatosum

Acute leukemia is characterized by a proliferation of:

immature white blood cells.

A papilloma:

is a benign tumor derived from squamous epithelium.

Adenoid cystic carcinoma:

is most commonly diagnosed in the fifth and sixth decade of life.

Squamous cell carcinoma of oral epithelium usually metastasizes first to the:

lymph nodes.

A___________both invades and destroys surrounding tissue and has the ability to spread throughout the body.

malignant tumor

A rhabdomyosarcoma is a:

malignant tumor of striated muscle.

Basal cell carcinoma is a:

malignant tumor that does not occur in the oral cavity.

The most frequent intraoral site for metastatic tumors of the jaws is the:

mandible.

Osteosarcoma occurs more often in the _________and more often in__________.

mandible; males

When a mucoepidermoid carcinoma arises within bone, it will usually be in the _________region.

mandibular posterior

The ameloblastoma:

may cause expansion of bone.

The adenoid cystic carcinoma is:

most commonly seen intraorally on the palate.

The granular cell tumor:

most often occurs on the tongue followed by the buccal mucosa.

Bence Jones proteins are associated with:

multiple myeloma.

A benign tumor of bone is called an:

osteoma.

A "sunburst pattern" is associated with:

osteosarcoma.

Most cases of papilloma occur on the:

soft palate or tongue.

An intraoral mucosal lesion that shows a mixture of red and white areas is generally called:

speckled leukoplakia.

"Keratin pearls" are a characteristic feature of:

squamous cell carcinoma.

According to the TNM Staging System for Oral Squamous Carcinoma, T2, N1, M0 would mean:

tumor 2 to 4 cm. in diameter, ipsilateral palpable nodes, and no distant metastasis.

An ameloblastoma may appear as a_____________on radiographs.

unilocular or multilocular radiolucency

Most cases of verrucous carcinoma occur in the:

vestibule and buccal mucosa of men over 55 years old.