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OMF Pathology > 12.1 Soft Tissue Tumors > Flashcards

12.1 Soft Tissue Tumors Flashcards

1
Q

What is a malignant tumor of the connective tissue called?

A

Sarcoma

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2
Q

What is a malignant neoplasm of the epithelium called?

A

Carcinoma

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3
Q

What is the most common tumor in the oral cavity?

A

Fibroma

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4
Q

What could this be?

A

Fibroma

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5
Q

Where is the most common place to find the most common tumor of the oral cavity?

A

Buccal mucosa along the occlusal line (pathology = fibroma)

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6
Q

What is this? What causes it?

A

Fibroma, caused by irritation or trauma

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7
Q

What is a fibroma?

A

Reactive hyperplasia of the connective tissue due to local irritation or trauma

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8
Q

What are these called?

A

Retrocuspid papilla

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9
Q

How do these normally present?

A

Typically bilateral, and in 99% of children (regress with age)

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10
Q

These typically have a papillary surface and occur at a younger age than other types of fibromas. What is this?

A

Giant cell fibroma

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11
Q

Giant cell fibromas don’t typically get larger than ______mm wide.

A

5-6mm

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12
Q

What is this?

A

Epulis fissuratum

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13
Q

What causes this?

A

Epulis fissuratum is IFH associated with the flange of an ill-fitting denture

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14
Q

What is this leaf-like projection?

A

Inflammatory fibrous hyperplasia (IFH)

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15
Q

What is this called?

A

Epulis fissuratum

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16
Q

What is this?

A

Inflammatory papillary hyperplasia

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17
Q

What causes this?

A

Wearing a denture too long or it irritates the underlying tissue

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18
Q

What other pathosis should you think to look for with this patient?

A

Candidiasis (patient has IPH)

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19
Q

Inflammatory papillary hyperplasia is related to what three things?

A
  1. Ill-fitting denture
  2. Poor denture hygiene
  3. Wearing the denture for 24 hrs a day
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20
Q

What is the oral counterpart of a dermatofibroma?

A

Fibrous histiocytoma

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21
Q

Do older or younger patients usually present with fibrous histiocytoma?

A

Older (younger usually present with dermatofibroma)

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22
Q

Pt is older and histologically this lesion appears with a “whirly” pattern. What could this be?

A

Fibrous histiocytoma

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23
Q

What results from overproduction of hyaluronic acid by fibroblasts?

A

Oral focal mucinosis

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24
Q

Pt is a young female and test reveals a high concentration of hyaluronic acid. What is this?

A

oral focal mucinosis

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25
Q

If there is a bump on the gingiva, what four things should you automatically be thinking of?

A
  1. Pyogenic granuloma
  2. Peripheral giant cell granuloma
  3. Peripheral ossifying granuloma
  4. Fibroma (or IFH)
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26
Q

What is your differential diagnosis? (four things)

A
  1. Pyogenic granuloma
  2. Peripheral giant cell granuloma
  3. Peripheral ossifying granuloma
  4. Fibroma
27
Q

Pt is pregnant in first trimester. What is this?

A

Pyogenic granuloma

28
Q

Not a true granuloma but what could this be?

A

Pyogenic granuloma (early lesions appear red)

29
Q

AKA the pregnancy tumor, what is this?

A

Pyogenic granuloma

30
Q

Give a differential diagnosis.

A
  1. Pyogenic granuloma
  2. Peripheral giant cell granuloma
  3. Peripheral ossifying granuloma
  4. Fibroma
31
Q

Often more blue in color than the other pathologies in the PPPF differential, what is this?

A

Peripheral giant cell granuloma

32
Q

What granuloma can create a “cupping” area of resorption in the alveolar bone?

A

Peripheral giant cell granuloma

33
Q

Attending wants to take a radiograph to inspect the alveolar bone. What is this?

A

Peripheral giant cell granuloma

34
Q

Often times more white or light pink in color than the other PPPF differential pathoses, what is this?

A

Peripheral ossifying granuloma

35
Q

What is this nodular mass originating from the papilla?

A

Peripheral ossifying granuloma

36
Q

Give a differential diagnosis.

A
  1. Pyogenic granuloma
  2. Peripheral giant cell granuloma
  3. Peripheral ossifying granuloma
  4. Fibroma (or IFH)
37
Q

What the name for a benign tumor of fat?

A

Lipoma

38
Q

What is this?

A

Lipoma

39
Q

This is the most common mesenchymal neoplasm. What is it?

A

Lipoma

40
Q

When this is removed it floats in formalin. What is it?

A

Lipoma

41
Q

What are the two subtypes of a neuroma?

A
  1. Traumatic neuroma
  2. Palisaded encapsulated neuroma (PEN)
42
Q

Where is the most common place for a traumatic neuroma?

A

Mental foramen

43
Q

Pt reports this is very painful and it first appeared after he was in a fist fight. What could this be?

A

Traumatic neuroma

44
Q

What is a benign neural tumor typically found on the face by the nose?

A

Palisaded encapsulated neuroma

45
Q

What is this?

A

Palisaded encapsulated neuroma (PEN)

46
Q

Full of neurons, what two things could this possibly be?

A
  1. traumatic neuroma
  2. palisaded encapsulated neuroma
47
Q

What are the two tissue zones of Schwannoma?

A

Antoni A & Antoni B

48
Q

Verocay bodies are associated with what tissue zone in Schwannoma?

A

Antoni A

49
Q

Name the tissue zone in Schwannoma featuring streaming fascicles of spindle-shaped Schwann cells which form a palisaded arrangement around central acellular, eosinophilic areas known as Verocay bodies.

A

Antoni A

50
Q

What is the most common type of peripheral nerve neoplasm?

A

Neurofibroma

51
Q

What are the most common sites for neurofibroma?

A

Tongue and buccal mucosa

52
Q

What else should you test the pt for if they have neurofibroma?

A

Neurofibromatosis

53
Q

Name four dignostic criteria for Neurofibromatosis Type I.

A
  1. Six or more café au lait macules
  2. Two or more NF or one plexiform NF
  3. Freckling in the axillary region (Crowe’s sign)
  4. Two or more iris hamartomas (Lisch nodules)
54
Q

Multiple tumors of the trunk and arms is a manifestation of what?

A

neurofibromatosis type I

55
Q

What are these called? What pathology are they diagnostic for?

A

Called Lisch nodules and are a diagnostic criteria for Neurofibromatosis Type I

56
Q

What are three oral manifestations of Neurofibromatosis Type I?

A
  • Enlargement of fungiform papilla
  • Intraoral neurofibromas
  • Enlargment of mandibular foramen or canal
57
Q

What is axillary freckling called? What pathology can it be diagnostic for?

A

Called Crowe’s sign and diagnostic criteria for Neurofibromatosis type I

58
Q

Bilateral neuromas of the commissural mucosa are signs of what disease?

A

Multiple endocrine neoplasia, type 2B

59
Q

What are some signs of MEN2B?

A
  1. bilateral commissural neuromas
  2. marfanoid build with thin, elongated features
  3. upturned eyelids
  4. protuberant lips
  5. narrow face
60
Q

Child also has elongated face. What condition do they have?

A

Multiple endocrine neooplasia, type 2B

61
Q

These neuromas can be a sign for what disease that has an average age of death of 21?

A

Multiple endocrine neoplasia, type 2B

62
Q

Protuberant lips and commissural neuromas are signs for what?

A

Multiple endocrine neoplasia, type 2B

63
Q
A

OMF Pathology (21 decks)

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