Question 1

Which of the following statements is true of the hemangioma?

Accepted Answer

The answer of Which of the following statements is true...

Question 2

The peripheral ossifying fibroma is most likely derived from:

Accepted Answer

The answer of The peripheral ossifying fibroma is most likely...

Question 3

The ameloblastic fibroma:

Accepted Answer

The ameloblastic fibroma occurs more commonly in males than in females. The most common location for an ameloblastic fibroma is the mandibular bicuspid and molar region, not the mandibular anterior region. Most cases of ameloblastic fibroma occur in individuals younger than 20 years of age rather than in adults over 50. The most common location for an ameloblastic fibroma is the mandibular bicuspid and molar region, not the maxillary anterior region.

Question 4

A rhabdomyosarcoma is a:

Accepted Answer

Rhabdomyosarcoma is a malignant tumor that arises from striated (skeletal) muscle tissue.

Question 5

The granular cell tumor:

Accepted Answer

The granular cell tumor most often occurs on the tongue (30-60% of cases) followed by the buccal mucosa (10-20%). It typically appears as a painless, slow-growing nodule. It occurs more commonly in women and is usually benign.

Question 6

The majority of adenomatoid odontogenic tumors occur in __________ years of age.

Accepted Answer

Adenomatoid odontogenic tumors occur most commonly in young females, with a peak incidence in the second decade of life.

Question 7

A lipoma:

Accepted Answer

A lipoma is a benign tumor of adipose tissue that typically presents as a soft, smooth, and mobile mass just beneath the skin. It usually appears yellowish and is covered by a thin layer of epithelium. Lipomas can occur anywhere on the body, but are most commonly found on the trunk, neck, upper thighs, and in some cases, in the mouth. They can occur in both men and women and are often diagnosed in middle-aged adults.

Question 8

A compound odontoma:

Accepted Answer

A compound odontoma appears on radiographs as a cluster of miniature teeth, which is characteristic of this type of odontoma, and is surrounded by a radiolucent halo.

Question 9

The most common intraoral location for a neurofibroma is the:

Accepted Answer

The most common intraoral location for a neurofibroma is the tongue. Microscopic examination of a neurofibroma reveals a fairly well-delineated but unencapsulated proliferation of spindle-shaped Schwann cells and perineural fibroblasts. The most common intraoral location for a neurofibroma is the tongue and not the floor of the mouth. The most common intraoral location for a neurofibroma is the tongue and not the vestibule. The most common intraoral location for a neurofibroma is the tongue and not the tonsillar pillar.

Question 10

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

Accepted Answer

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Question 11

Most ameloblastomas are located in the:

Accepted Answer

The majority of ameloblastomas (around 80%) occur in the posterior mandible, with the molar and ascending ramus areas being the most common sites. Anterior mandible and maxilla are less commonly affected.

Question 12

An ameloblastoma may appear as a ______________ on radiographs.

Accepted Answer

An ameloblastoma may appear as either a unilocular or multilocular radiolucency on radiographs.

Question 13

The adenomatoid odontogenic tumor features ductlike structures that:

Accepted Answer

The ductlike structures in adenomatoid odontogenic tumor are actually ameloblast-like cells that arrange in a circular pattern, giving the appearance of ducts. They do not resemble ducts found in salivary glands or odontoblast-like cells.

Question 14

A _______________ is a benign proliferation of capillaries.

Accepted Answer

A hemangioma is a benign proliferation of capillaries, often found on the skin or in organs such as the liver. A hematoma is a localized swelling filled with blood, usually caused by injury. A hamartoma is a disorganized overgrowth of cells or tissues in a particular area of the body. A lymphangioma is a benign tumor made up of lymphatic vessels.

Question 15

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.

Accepted Answer

The calcifying epithelial odontogenic tumor, also known as Pindborg tumor, is characterized by islands and sheets of polyhedral epithelial cells and deposits of amyloid-like material, which are believed to be abnormal enamel proteins.

Question 16

Kaposi sarcoma is:

Accepted Answer

Kaposi sarcoma is caused by human herpesvirus 8 (HHV-8). It is not exclusively associated with HIV, can appear in various locations, and is not a muscle tumor.

Question 17

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

Accepted Answer

The odontogenic myxoma can become quite large and cause displacement of teeth. It is not most common in people over 50 (A), exhibits a unilocular radiolucency with well-defined margins (B), or arises most often in the posterior maxilla (D).

Question 18

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

Accepted Answer

Adenomatoid odontogenic tumors most frequently occur in the anterior part of the jaws, particularly in the maxilla.

Question 19

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

Accepted Answer

The answer of Which of the following tumors will most...

Question 20

Ghost cells are characteristic of which of the following lesions?

Accepted Answer

Ghost cells are a unique feature of the calcifying odontogenic cyst. They are epithelial cells that have undergone keratinization and have lost their nuclei, leaving behind a "ghost-like" appearance. Adenomatoid odontogenic tumors, calcifying epithelial odontogenic tumors, and ameloblastomas do not typically exhibit ghost cells.

Quiz 7: Neoplasia