Mesenchymal Lesions

Question 1

What is a fibroma? Clinical features?

Answer 1

benign Reactive hyperplasia of fibrous connective tissue.

-Smooth surface, sessile, pink nodule.

Question 2

What is peripheral ossifying fibroma? Clinical features? Recurrence?

Answer 2

Tumor or reactive lesions exclusively on the gingiva

• Nodular, red to pink, firm.
• Higher recurrence rate than typical benign tumor.

Question 3

What is a fibrosarcoma?

Answer 3

Malignant fibrous tumor.

Question 4

What is pyogenic granuloma? categorized as? Clinical features? Also known as?

Answer 4

Tumorlike growth, generally non-neoplastic.

• Categorized as lobular capillary hemangioma
• Rapidly growing, vascular (blanches), well circumscribed.
• AKA pregnancy tumor

Question 5

What is a peripheral giant cell lesion? Seen? Clinical features?

Answer 5

Vascular, tumor-like growth that is reactive.

• Seen exclusively on gingiva or edentulous alveolar ridge
• Firm, vascular.

Question 6

What are the 5 P’s of gum bumps? (What 5 lesions could the common gum bump lesions be)

Answer 6

1. Pyogenic Granuloma
2. Peripheral ossifying Fibroma
3. Peripheral Giant cell Granuloma
4. Plain Fibroma
5. Parulis

Question 7

What is lymphangioma? Clinical features?

Answer 7

Benign growth of lymphatic vessels.

-Doesn’t blanch, Congenital, Found on dorsum of tongue, has a frog egg appearance.

Question 8

What is angiosarcoma?

Answer 8

Malignant vascular tumor.

Question 9

What is traumatic neuroma? clinical features?

Answer 9

Reactive proliferation of axons after trauma.

-Anesthesia or dysthesia, pain on palpation.

Question 10

What is a schwannoma? Clinical features?

Answer 10

Benign neoplasm of Schwann cells

-not painful on palpation, non vascular.

Question 11

What is a neurofibroma?

Answer 11

Benign fibrous neural tissue tumor.

Question 12

What is neruofibromatosis? Clinical features?

Answer 12

Hereditary syndrome of neural tissue.

-Multiple neurofibromas, Cafe Au Lait, crowe’s sign (axillary freckling), Lisch nodules on eye.

Question 13

What is Granular Cell tumor?

Answer 13

Benign neoplasm that 50% are on the tongue.

Question 14

What is Malignant peripheral nerve sheath tumors?

Answer 14

Malignant neural tumor.

Question 15

What is a leiomyoma? Clinical features?

Answer 15

Benign tumor of smooth muscle.

-Slow growing, firm, mucosal nodule with pink or bluish hue (if it proliferates the vasculature as well).

Question 16

What is leiomyosarcoma?

Answer 16

Malignant tumor of smooth muscle.

Question 17

What is Rhabdomyoma?

Answer 17

Benign tumor of skeletal muscle.

Question 18

What is Rhabdomyosarcoma?

Answer 18

Malignant tumor of skeletal muscle.

Question 19

What is a lipoma? Clinical features?

Answer 19

Benign tumor of fat tissue

-Yellow or pink hue

Question 20

What is liposarcoma?

Answer 20

Malignant tumor of fat

Question 21

What is congenital epulis? Clinical features?

Answer 21

At birth only on alveolar ridge tumor like lesion.

• pink-red, smooth surfaced, single or polypoid mass.
• 90% on females.