Mesenchymal Flashcards

1
Q

Mesenchymal CT Lesions5

A
  • Fibrous
  • Vascular
  • Neural
  • Muscle
  • Fat
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2
Q

Fibroma

Occurence

Cause

App

Tx

A
  • Most common tumor of oral cavity
  • True tumor of fibrous tissue rare
  • Reactive hyperplasia of fibrous CT
  • Ap
    • Smooth, sessile, pink nodule
  • Tx surgical excision
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3
Q

Peripheral Ossifying Fibroma

occurence

Location

App

tx

prog

A
  • Common, reactive
  • Exclusively on the gingiva, usually interdental papilla
  • App
    • Nodule red to pink firm may be ulcerated
  • Excisional biopsy
  • Good prognosis but high recurrence
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4
Q

Peripheral vs Central

Loc

Why is distinction imp

A
  • Indication of location
    • Central= inside the jaw bone
    • Peripheral=specifically on gingiva (outside bone)
  • Distinction imp for treatment purposes
    • Peripheral- excision
    • Some central extensive excision or resection
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5
Q

Fibrosarcoma

A
  • Malignant tumor of fibroblasts
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6
Q

Pyogenic Granuloma

What and where

Generally…

Some categorize as

Common during

A
  • Tumor-like growth of oral cavity
  • Generally non-neoplastic
  • Cause reastive lesion to irritation or injury
  • Some categorize it as vascular tumor: lobular capillary hemangioma
  • Common during pregnancy or puberty
    • assoc with hormones
  • Can happen anywhere bc vascular
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7
Q

Pyogenic Granuloma

Growth

App

Location

Tx

Prog

A
  • Rapid growth initially
  • App
    • Well circumscribed, vascular: always red-blue, bleeds, blanches
  • Common on gingiva, but can occur anywhere
  • Often ulcerated & covered with psudomembrane
  • Tx
    • Excision, for gingival extend to periosteum
  • Prog
    • Recurrence, pregnancy lesions may resolve on own
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8
Q

Peripheral Giant Cell Lesion

Cause

APP

Location

Arises from

A
  • Tumor like growth reactive to local irritation or trauma
  • App
    • Peripheral=only gingiva
    • Firm, vascular, may be ulcerated
  • Exclusively in gingiva or edentulous alveolar ridge
  • Arises from periodontal ligament or periosteum
  • Tx
    • excision
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9
Q

The 5 Gingival Masses

A
  • Can happen anywhere
    • Pyogenic granuloma
    • Plain fibroma
  • Gingiva only
    • Peripheral ossifying fibroma
    • Peripheral giant cell granuloma
    • Parulis
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10
Q

Lymphangioma

What is it

Blanchable?

Cause

App

Tx

A
  • Benign growth of lymphatic tissues
  • Does NOT blanch bc vessels dont contain blood
  • Thought to be congenital
    • Half of all lesions noted at birth, 90% before 2 yo
  • App
    • Diffuse, compressible
    • Dorsum of tongue, causing macroglossia
    • Cluster of translucent vesicles, frog egg apperance
  • Cystic usually found in head and neck
  • Tx excision
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11
Q

Angiosarcoma

A

Malignancy of vascular endothelium

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12
Q

Traumatic Neuroma

Cause

Symptoms

Loc

Tx

A
  • Reaction proliferation of neural tissue after transection or trauma
    • Hx of trauma tooth extraction
  • Proliferation of axons
  • App
    • Anesthesia or dysthesia
    • Pain upon palpation
  • Loc
    • Mental foramen, tongue and lower lips
  • Tx excision
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13
Q

Schwannoma

Cause

Location Tx

A
  • Benign neural neoplasm of Schwann cells
  • Not painful on palpation
  • Common on tongue
  • Tx excision
  • Doesnt blanch
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14
Q

Neurofibroma

Type of

what kind of cells

Dist

app

A
  • Most common tye of peripheral nerve neoplasm
  • Mix of cell types ( Schwann cells and perineural fibroblasts)
  • Solitary or part of syndrome(neurofibromatoses)
  • Oral
    • tongue and buccal mucosa
  • All pts should be eveluated for NF
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15
Q

Granular Cell Tumor

Def, locaton

Type of cells

May look like

Tx

A
  • Benign neoplasm, favors oral cavity
  • Studies say Schwann cells
  • 1/2 cases on tongue
  • May look like fibroma
  • Tx excision
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16
Q

Malignant Peripheral Nerve Sheath Tumor

Age

Location

Tx

Prog

A
  • Head/neck, young adults
  • Oral
    • Mandible lips buccal mucosa
  • Intrabony
    • Widening or mandibular canal or mental foramen
  • Tx excision poor prognosis
17
Q

Leiomyoma

Def

Common in

App

Tx

A
  • Benign tumor of smooth muscle
  • Common in
    • Uterus, gi tract skin
  • Slow growing, firm, mucosal nodule with pink or blue hue (vascular variant)
  • Tx excision
18
Q

Leiomyosarcoma

A
  • Malignancy of smooth muscle
19
Q

Rhabdomyoma

Def

2 types ( gender, location)

A
  • Benign tumor of skeletal muscle
  • Adult type
    • Men
    • Pharynx oral cavity larynx
  • Fetal type
    • young male
    • Face periauricular regions
  • Can only occur where there is skeletal muscle
20
Q

Rhabdomyosarcoma

A

Malignancy of skeletal muscle

21
Q

Lipoma

def

Common location on body and orally

App

A
  • Benign tumor of fat tissue
  • Most on trunk and extremities
  • Common in obese
  • Oral
    • buccal mucosa buccal vestibule
  • App
    • yellow or pink hue
22
Q

Liposarcoma

A

Malignancy of fatty origin

23
Q

Congenital Epulis

Age

Location

App

gender

A
  • Occurs at birth only on alveolar ridge tissue
  • Pink red smooth
  • single or polypoid mass
  • Females
24
Q

Conclusions of mesenchymal

A
  • All mesenchymal tissues may give rise to lesions
    • Benign or malignant
  • Biopsy required to diagnose
  • Surgical excision most often required