Odontogenic Tumors and Ameloblastoma

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What is the most important indicator of prognosis for oral cancers?

The location of the tumor

The patient's age and gender

The clinical stage of the disease (correct)

The presence of metastasis to lymph nodes

Which one of the following statements about the prognosis of upper lip cancer is correct?

The prognosis depends on the stage of the cancer

The prognosis is better than for lower lip cancer

The prognosis is similar to lower lip cancer

The prognosis is considerably worse than for lower lip cancer (correct)

What percentage of oral cancers are carcinomas of the tongue?

45-55%

25-40% (correct)

60-70%

10-20%

Which of the following is NOT a common presenting symptom of tongue carcinoma?

Fever and weight loss (D) Signup and view all the answers

What is the most common location for tongue carcinoma?

Posterior-lateral border of the tongue (B) Signup and view all the answers

What is the most common first site of lymph node metastasis for tongue carcinoma?

Jugulodigastric lymph nodes (B) Signup and view all the answers

Which of the following statements about the prognosis of tongue carcinoma is correct?

Tongue carcinomas have a good prognosis if caught early, but a poor prognosis if metastatic (B) Signup and view all the answers

What is the second most common intraoral location for carcinoma?

Floor of the mouth (A) Signup and view all the answers

Which of the following subtypes of melanoma is mentioned in the text?

No subtypes of melanoma are mentioned (A) Signup and view all the answers

What is the most common age range for tongue carcinoma?

6th-8th decades of life (A) Signup and view all the answers

What is the characteristic radiographic appearance of fibrous dysplasia, as mentioned in the text?

Ground glass effect (B) Signup and view all the answers

Which distinguishing feature helps differentiate fibrous dysplasia from other conditions in mandibular lesions?

Superior displacement of the mandibular canal (B) Signup and view all the answers

What treatment is recommended for a small lesion of fibrous dysplasia?

Biopsy confirmation and periodic follow-up (A) Signup and view all the answers

What is a distinguishing histopathologic feature of fibrous dysplasia?

Moderate cellular fibrous connective tissue stroma (A) Signup and view all the answers

Which lesion has a well-circumscribed radiographic appearance according to the text?

Calcifying epithelial odontogenic tumor (A) Signup and view all the answers

What is the prognosis for fibrous dysplasia in terms of malignant transformation?

<1% of cases show malignant transformation (A) Signup and view all the answers

What is the most common radiographic appearance of a calcifying epithelial odontogenic tumor?

A mottled radiolucent and radiopaque appearance (D) Signup and view all the answers

What is an important distinguishing feature of a calcifying epithelial odontogenic tumor?

Poorly defined radiographic and clinical margins (A) Signup and view all the answers

What is the recommended treatment for a calcifying epithelial odontogenic tumor?

Same as the treatment for ameloblastoma (D) Signup and view all the answers

What is a key histopathologic feature of a calcifying epithelial odontogenic tumor?

Complex distribution of a variety of cells and tissues (C) Signup and view all the answers

Which of the following describes the histologic features of the tumor described in the text?

Nests and cords of cuboidal cells arising from the epidermal basal cells, with tumor cells budding off and growing downwards as basophilic islands and cords (D) Signup and view all the answers

Which of the following clinical features is NOT mentioned in the text?

Rapid, painful growth of the tumor with ulceration and bleeding (D) Signup and view all the answers

Which of the following histopathologic features is described in the text?

Diffuse hyalinization of the subepithelial stroma with few, small fibroblastic nuclei and pigment incontinence from the overlying epithelial melanin (C) Signup and view all the answers

Based on the information provided, which of the following is a likely diagnosis?

Oral squamous cell carcinoma (B) Signup and view all the answers

Which of the following statements about the prognosis is NOT supported by the information provided?

The tumor has a high rate of metastasis to distant organs, such as the lungs and liver (D) Signup and view all the answers

Which of the following statements is TRUE?

The tumor cells exhibit hyperchromatic nuclei and jagged edges or palisading, unlike normal basal cells which mature and lose their nuclei (C) Signup and view all the answers