Chapter 12: Soft Tissue Tumors Flashcards
what is the treatment of a palisaded encaspulated neuroma?
surgical excision
are most melanotic neuroectodermal tumors of infancy benign or malignant?
benign
inflammatory papillary hyperplasia is a condition related to what 3 things?
- ill-fitting denture
- poor denture hygiene
- wearing a denture 24 hours/day
what is the appearance of peripheral ossifying fibroma?
nodular mass, usually originating from the dental papilla
inflammatory papillary hyperplasia
___% of peripheral ossifying fibromas recur. why?
15%, usually because the base of the lesion was not removed
giant cell fibroma
multiple endocrine neoplasia type 2B
notice the multiple mucosal neromas on the tongue and the bilateral neuromas of the commissural mucosa
palisaded encapsulated neuroma
___ of neurofibromatosis type I is pathognomonic
plexiform variant
feels like a bag of worms
sturge-weber angiomatosis
ipsilateral hypervascular changes
are pyogenic granulomas more common in males or females?
- females
- frequently occurs in pregnant women, most commonly in the 1st trimester
- some regress after pregnancy
leptomeningeal angiomas are typically associated with a ___, and may result in mental retardation or ___
- convulsive disorder
- contralateral hemiplagia (one-sided paralysis)
lipomas are the most common ___ neoplasm
mesenchymal
more common on the trunk
is the mechanism by which tumors can spread to the oral cavity well understood?
no
peripheral giant cell granuloma
notice the bluish color
what are the two types of rhabdomyomas?
- adult
- 70% in adult men
- nodular mass most commonly occurring int he pharynx and floor of mouth
- fetal
- young male patients
- predilection for the face
endemic (african) kaposi’s sarcoma has 4 subtypes. what are they?
- benign nodular (similar to classic)
- aggressive
- florid
- lymphadenopathic (children)
what are the diagnostic criteria for neurofibromatosis type I and how many do you need for a positive diagnosis?
need 2 or more for a positive diagnosis
- six or more cafe au lait macules
- “coast of california”
- two or more neurofibromas or one plexiform neurofibroma
- freckling in the axillary region (crowe’s sign)
- optic glioma
- two or more iris hamartomas (lisch nodules)
- osseous lesion such as sphenoid dysplasia
- first degree relative with neurofibromatosis type I
what is the treatment for fibromas?
conservative surgical exision
port wine stain aka nevus flammeus characteristic of sturge-weber angiomatosis
describe the classic type of kaposi’s sarcoma
- 80% in older men
- italian, jewish, or slavic descent
- multiple, asymptomatic blue-purple macules on the lower extremities which grow into nodules
___ is reactive hyperplasia of fibrous connective tissue in response to local irritation or trauma
fibroma
what is the treatment of peripheral ossifying fibroma?
excision down to periosteum and scale adjacent teeth
what is the clinical presentation of lymphangiomas?
frog eggs or tapioca pudding
granular cell tumor
pyogenic granulomas may exhibit ___ growth
rapid
50-75% of lymphangiomas are in what location?
head and neck
what is the treatment of lipomas?
surgical excision
___ is a reactive tissue growth that develops under a denture
inflammatory papillary hyperplasia
patients with sturge-weber angiomatosis have what two characteristic features?
- port wine stain (aka nevus flammeus)
- leptomeningeal angiomas
congenital epulis’ are 3x more common in the maxillary or mandibular alveolar ridge? what specific location is most frequent?
- maxillary
- most frequently where the developing lateral incisor-canine area
neurofibroma
what is the treatment for a granular cell tumor?
conservative excision is typically curative
___ is a benign tumor of lymphatic vessels
lymphangioma
primary malignancies from adjacent tissues may spread via ___
lymphatics
leptomeningeal angiomas overly the ipsilateral or contralateral cerebral cortex?
ipsilateral
describe a possible explanation of head and neck metastases in the absence of lung metastases
batson’s plexus
- this is a valveless vertebral venous plexus that might allow retrograde spread of tumor cells and bypass the lungs
what is the most common location of neurofibromas? what about intraoral sites?
- skin is the most common overall
- intraoral lesions are common on the tongue and buccal mucosa
most patients with inflammatory papillary hyperplasia also have ___
a candidal infection
___ neuromas of the ___ mucosa are highly characteristic of multiple endocrine neoplasia type 2B
bilateral neuromas of the commissural mucosa
melanotic neuroectodermal tumor of infancy
how many recognized forms of neurofibromatosis are there, and what is the most common form?
- 8 forms
- neurofibromatosis type I
are schwannomas typically symptomatic or asymptomatic?
asymptomatic
inflammatory papillary hyperplasia typically occurs where?
on the hard palate
what is the average age of someone with a palisaded encapsulated neuroma?
50yo
retrocuspid papilla
___ is the most common type of peripheral nerve neoplasm
neurofibroma
what is the treatment for inflammatory fibrous hyperplasia?
surgical removal and remake the denture
rhabdomyosarcomas make up ___% of soft tissue sarcomas of childhood, and ___% are found in the head and neck
- 60%
- 35%
what are the histologic features of a schwannoma?
- antoni A - streaming fascicles of spindle-shaped schwann cells which form a palisaded arrangement around central acellular, eosinophilic areas known as verocay bodies
- antoni B - basically everything that’s not antoni A
what is the treatment for rhabdomyomas?
excision is curative
describe traumatic neuromas
- not a true neoplasm; it is a proliferation of neural tissue after nerve injury
- most common in mental foramen area
- 1/3 are painful
- surgical removal is typically curative
intraoral involvement of sturge-weber angiomatosis is common and results in ___. this lesion may ___ when manipulated
- hypervascular changes to the ipsilateral mucosa
- hemmorhage
do all patients with a port wine stain have sturge-weber angiomatosis?
no
what is the presentation of pyogenic granulomas?
- smooth or lobulated mass that is typically pedunculated
- surface is characteristically ulcerated and lesion bleeds easily
- young lesions appear red; older lesions are more collagenized and pink
peripheral ossifying fibroma
in histology photos, what would you see that would indicate a peripheral ossifying fibroma?
bone
50% of lipomas are in what location?
buccal mucosa
giant cell fibromas typically have a ___ surface
papillary
what is another name for a schwannoma?
neurilemoma
inflammatory papillary hyperplasia
what is a retrocuspid papilla?
- it is microscopically similar to a giant cell fibroma, located lingual to the mandibular cuspid
- typically bilateral, present in up to 99% of children
- normal anatomic variation that regresses with age
what is the prognosis of metastases to oral soft tissues?
poor
neurofibroma
what is typically the first sign of multiple endocrine neoplasia type 2B?
oral mucosal neuromas, present as soft, painless papules or nodules
what population are hemangiomas more common?
- more common in females (3:1, 5:1)
- more common in caucasians vs other racial groups
what are the 4 clinical presentations of kaposi’s sarcoma?
- classic
- endemic (african)
- iatrogenic immunosuppression associated
- AIDS related
inflammatory papillary hyperplasia may show improvement after ___ therapy
antifungal
giant cell fibroma
floats in formalin
lipoma
___ is a rare, nonhereditary developmental condition caused by the persistence of a vascular plexus around the cephalic portion of the neural tube
sturge-weber angiomatosis
what age patient are lipomas most common?
>40
rhabdomyosarcoma
up to half of schwannoma cases occur in what location?
head and neck
what are the syptoms of neurofibromatosis type II?
deafness, dizziness, tinnitus
what is the treatment of neurofibromatosis type I?
directed toward prevention or management of complications
___ occurs almost exclusively on the alveolar ridges of newborns and appears as a mucosal-colored, smooth-surfaced, polypoid mass typically less than 2cm
congenital epulis
neurofibromas can arise as ___ tumors or be a component of ___
- solitary
- neurofibromatosis
what is the prognosis of classic kaposi’s sarcoma?
90% survival
how do rhabdomyosarcomas present?
painless, infiltrative mass that grows rapidly
how should pyogenic granulomas that develop during pregnancy be treated?
treatment should be deferred unless functional or esthetic problems develop
what is the treatment of neurofibromas?
surgical excision
what population with granular cell tumors might experience multiple tumors?
african americans
pyogenic granuloma
___ is a benign neural neoplasm of schwann cell origin; it is a slow-growing, encapsulated tumor which arises in associated with a nerve trunk
schwannoma
palisaded encapsulated neuromas are benign neural tumors that are typically found in what location?
on the face (90%)
what do lesions look like that have metastasized to the oral soft tissues?
nodular mass that resembles a hyperplastic growth, such as a pyogenic granuloma
sturge-weber angiomatosis has a _(unilateral/bilateral)_ distribution along one or more segments of the ___ nerve
- unilateral
- trigeminal nerve
describe the iatrogenic type of kaposi’s sarcoma
- most common in organ transplant recipients
- 0.5% of renal transplant patients
what is the most common location of fibromas?
buccal mucosa along the bite line
granular cell tumors typically occur around what age? male to female ratio?
- age 40; rare in kids
- 2:1 F:M
what are the common locations of pyogenic granulomas?
most common on gingiva (75%) > lips, tongue, buccal mucosa
what is the treatment of rhabdomyosarcoma?
surgery and chemotherapy with radiation