15.Nonodontogenic_Tumors_Tests

Question 1

A teenager has a painless expansile lesion in the maxilla with ground-glass radiopacity affecting one bone.
Which of the following diagnoses best fits this presentation?
A. Fibrous Dysplasia (Monostotic)
B. Fibrous Dysplasia (Polyostotic)
C. Jaffe–Lichtenstein Syndrome
D. Ossifying Fibroma / Cementifying Fibroma

Answer 1

A - Fibrous Dysplasia (Monostotic): single bone fibrous replacement

Question 2

A child shows multiple areas of bone expansion with ground-glass appearance on skull and jaw X-rays.
Which of the following diagnoses best fits this presentation?
A. Jaffe–Lichtenstein Syndrome
B. Fibrous Dysplasia (Polyostotic)
C. Ossifying Fibroma / Cementifying Fibroma
D. Periapical Cemento-osseous Dysplasia (Focal)

Answer 2

B - Fibrous Dysplasia (Polyostotic): multiple bone fibrous replacement

Question 3

A patient presents with polyostotic bone lesions and café-au-lait skin spots.
Which of the following diagnoses best fits this presentation?
A. Ossifying Fibroma / Cementifying Fibroma
B. Periapical Cemento-osseous Dysplasia (Focal)
C. Jaffe–Lichtenstein Syndrome
D. Periapical Cemento-osseous Dysplasia (Periapical)

Answer 3

C - Jaffe–Lichtenstein Syndrome: polyostotic dysplasia with skin pigmentation

Question 4

A 25-year-old has a well-circumscribed jaw lesion with fibrous stroma and calcified globules.
Which of the following diagnoses best fits this presentation?
A. Periapical Cemento-osseous Dysplasia (Focal)
B. Periapical Cemento-osseous Dysplasia (Periapical)
C. Periapical Cemento-osseous Dysplasia (Florid)
D. Ossifying Fibroma / Cementifying Fibroma

Answer 4

D - Ossifying Fibroma / Cementifying Fibroma: fibrous tumor with calcifications

Question 5

A routine radiograph reveals a small periapical radiolucency that transitions to radiopacity in a single tooth.
Which of the following diagnoses best fits this presentation?
A. Periapical Cemento-osseous Dysplasia (Focal)
B. Periapical Cemento-osseous Dysplasia (Periapical)
C. Periapical Cemento-osseous Dysplasia (Florid)
D. Osteoblastoma

Answer 5

A - Periapical Cemento-osseous Dysplasia (Focal): localized periapical fibro-osseous lesion

Question 6

A healthy adult has periapical radiopaque changes around vital anterior mandibular teeth.
Which of the following diagnoses best fits this presentation?
A. Periapical Cemento-osseous Dysplasia (Florid)
B. Periapical Cemento-osseous Dysplasia (Periapical)
C. Osteoblastoma
D. Gardner’s Syndrome

Answer 6

B - Periapical Cemento-osseous Dysplasia (Periapical): anterior mandible periapical lesion

Question 7

A middle-aged patient shows multiple radiopaque lesions at tooth apices throughout both jaws.
Which of the following diagnoses best fits this presentation?
A. Osteoblastoma
B. Gardner’s Syndrome
C. Periapical Cemento-osseous Dysplasia (Florid)
D. Central Giant Cell Granuloma (Non-aggressive)

Answer 7

C - Periapical Cemento-osseous Dysplasia (Florid): widespread jaw fibro-osseous lesions

Question 8

A young adult complains of localized jaw pain and a radiolucent lesion with bone formation on histology.
Which of the following diagnoses best fits this presentation?
A. Gardner’s Syndrome
B. Central Giant Cell Granuloma (Non-aggressive)
C. Central Giant Cell Granuloma (Aggressive)
D. Osteoblastoma

Answer 8

D - Osteoblastoma: painful bone-forming tumor

Question 9

A patient with family history of colon cancer also has mandibular osteomas and skin fibromas.
Which of the following diagnoses best fits this presentation?
A. Gardner’s Syndrome
B. Central Giant Cell Granuloma (Non-aggressive)
C. Central Giant Cell Granuloma (Aggressive)
D. Fibrous Dysplasia (Monostotic)

Answer 9

A - Gardner’s Syndrome: familial polyposis with jaw osteomas

Question 10

A slow-growing multilocular radiolucency in the anterior mandible without root resorption is found.
Which of the following diagnoses best fits this presentation?
A. Central Giant Cell Granuloma (Aggressive)
B. Central Giant Cell Granuloma (Non-aggressive)
C. Fibrous Dysplasia (Monostotic)
D. Fibrous Dysplasia (Polyostotic)

Answer 10

B - Central Giant Cell Granuloma (Non-aggressive): slow-growing jaw granuloma

Question 11

A rapidly enlarging jaw lesion with cortical perforation and root resorption shows giant cells on biopsy.
Which of the following diagnoses best fits this presentation?
A. Fibrous Dysplasia (Monostotic)
B. Fibrous Dysplasia (Polyostotic)
C. Central Giant Cell Granuloma (Aggressive)
D. Jaffe–Lichtenstein Syndrome

Answer 11

C - Central Giant Cell Granuloma (Aggressive): rapid bone-destructive granuloma