Exam 3- Lecture 1 Flashcards
abnormal increase in the NUMBER of normal cells
Hyperplasia
calcifications are a mixture of cementum and bone trabeculae, well defined RL with RO lesion. surgical excison for treatment
cemento-ossifying fibroma a
original tumor with the source for metastisis
primary tumor
cancer; resistant to treatment and causes death
malignant tumor
this is a malignant skin tumor composed of basal cells that is derived from squamous epithelium, association with sun exposure… does not occur in the oral cavity
basal cell carcinoma
what are the three types of epithelial tumors?
squamous epithelium
salivary gland epithelium
odontogenic epithelium
this appears clinically as nonhealing ulcer of the skin with a characteristic rolled borders, does not occur in oral cavity and recommend a biopsy if not healed in 10 days
basal cell carcinoma
invades and destroys surrounding tissue and has the ability to spread throughout the body… CANCER
malignant tumor
these are malignant tumors of epithelium and ten times more common than sarcomas
carcinoma
malignant tumor of salivary gland origin that can originate from either major or minor salivary gland tissue, slow growing, painful
adenoid cystic carcinoma (Cylindroma)
where does pleomorphic adenoma occur?
extraoral: parotid gland
intraoral: palate
malignant tumors of salivary glands
adenocarcinoma
who does SCC occur in?
majority of older patients in their fortys
malignant tumor of epithelium
carcinoma
who does florid osseous dysplasia occur in, treated and what is a complication?
older black women… no treatment
osteomyelitis in patients wearing C/C or RPD/RPD
malignant tumor of CT
sarcoma
this is AKA Pindborg Tumor… benign epithelial odontogenic tumor that occurs less frequently than an amelobastoma.. composed of islands and sheets of polyhedral cells
calcifying epithelial odontogenic tumor (CEOT)
what does an amelobastic fibroma look like on a radiograph and how is it treated?
well defined or poorly defined uni or multiocular RL
surgical removal
who and where does amelobastic fibroma occur in?
young children less than 20 years in the mand PM molar region
type of monomoprhic adenoma with two tissue types (epithelial and lympoid), presents as painless, soft fluctuating mass of parotid gland… bilateral and treat with surgical excision
warthins tumor (adenolymphoma)
How do you treat a benign tumor?
surgical excision
a malignant tumor of squamous epithelium, most common malignancy of oral cavity and it can metastasize to distant sites.. usually an exophytic ulcerative mass
squamous cell carcinoma
likely to cause the death of the host
malignant
where and who does benign cementoblastoma occur in?
young adults in the mand. molar or PM area. pain is a frequent symptom and removal of lesion or tooth for treatment
not malignant, favorable for recovery
benign
malignant tumors of CT
sarcoma
study of tumors or neoplasms
oncology
what is the 5 year survival rate for mucoepidermoid carcinoma?
low grade: 92%
high grade: 49%
where are the most common sites of SCC?
floor of the mouth, lateral borders of tongue, soft palate, tonsillar pillar, and retromolar areas
means new growth in which cells exhibit uncontrolled proliferation
neoplasia
this is a benign encapsulated salivary gland tumor that are much rarer than pleomorphic adenomas, occurs in adults in upper lip and treat with surgical excision
monomorphic adenoma
tooth forming
odontogenic
increase in quantities
proliferation
common condition of unknown cause that affects periapical bone, not a premalignant condition.. asymptomatic found on routine PA x-ray
periapical cemental dysplasia
What are some characteristics of papilloma?
cauliflower appearance, occur at any age, found in soft palate and treat with surgical excision
occurring within the bone
central
tumor developing in a different spot from a primary tumor
metastatic tumor
encapsulated, benign epithelial odontogenic tumor that has a distinctive age, sex and site distribution that does not reoccur and has a duct like structure in the make up
adenomatoid odontogenic tumor
who does adenomatoid odontogenic tumor occur in and where?
70% occur in females less than 20 years old and 20% in anterior maxilla
they extend past the CEJ and can involve 50-60% of the root
how does CEOT appear on x-ray and where does it occur?
UNI or multiocular RL with RO mass and usually occurs with adults more in mandible in the premolar and molar area… surgical excision for treatment
who is adenoid cystic carcinoma more common in and how’s it treated?
women… surgical excision. poor prognosis if matastisizes
this is the most common of all benign tumors and is a slow enlarging, nonulcerated, painless, dome shaped mass and is histologically an encapsulated tumor of missed tissues
pleomorphic adenoma
this histologically may show epithelial dysplasia or squamous cell carcinoma… if it is found in the floor of the mouth or lateral border of the tongue it needs to be biopsied
leukoplakia
what indicates tumor?
suffix “oma”
this is a form of SCC that has a better prognosis and slow growing exophytic tumor with a pebbly white/red surface and treat with surgical excision
Verrucous Carcinoma
means disordered growth
dysplasia
benign, slow growing aggressive epithelial odontogenic tumor occurring in both maxillary and mandibular area and means death when in maxilla… resembles RL honeycomb on x-ray
amelobastoma
tumor
neoplasm
benign tumor of salivary gland
adenoma
these are derived from tooth forming tissues
odontogenic tumors
an oral mucosal lesion that may appear as a smooth red patch or a granular red and velvety patch and less common than leukoplakia
erythroplakia
tumor of bone
osteoma
how is adenomatoid odontogenic tumor (AOT or OAT) treated?
enculation (removed all of it)
gland like
adenomatoid
this is a cementoma but not a neoplasm, teeth are vital… fibro osseous lesion and no freakin
periapical cemental dysplasia
infiltration and active destruction of surrounding tissue
invasion
a mass of cells exhibiting uncontrolled proliferation
neoplasm
what are the risk factors and treatments of SCC?
tobacco and alcohol
surgical excision with or without radition or chemo (95% 5 year survival rate if detected early).. smaller the lesion the better the prognosis
this is a benign nonencapsulated odtontogenic tumor composed of both strands and small islands of odontogenic epithelium and tissue that resembles dental papilla
amelobastic fibroma
cementum producing lesion that is fused to the tooth of a tooth, well defined RO mass in continually with the root or rots of the affected tooth and obliterates the apex of the tooth surrounded by RL line
Benign cementoblastoma
white plaque like lesion of the oral mucosa that cannot be rubbed off and cannot be diagnosed as a specific disease
leukoplakia
what are the causes of neoplasia?
chemicals, viruses, radiation
staining more intensely than normal
hyperchromatic
how do you treat a malignant tumor?
surgery, chemotherapy, radiation or combination
transport of neoplasticism cells to parts of the body remote from the primary tumor and establishment of a new tumor there
metastasis
this is a benign fat tumor
lipoma
How do you treat odontogenic myxoma?
complete removal with 25% reoccurring… multiocular RL poorly defined margins can cause tooth displacement
calcifications resemble bone trabeculae
ossifyinf fibroma
this is the most common malignant salivary gland tumor in children. it must be surgically excised and follow up for mestaisis
mucoepidermoid carcinoma
fibro osseous lesion (mixed RL/RO lesion), a condition of disordered cementum and bone development that involved multiple quadrants.. dense scelerotic masses of bone or cementum appear as large RO areas
florid osseous dysplasia
who does odontogenic myxoma occur in?
young people 10-29 years
this is a pre malignant condition that precedes squamous cell carcinoma, it looks like leukoplakia, erythoplakia or soeckled leukoplakia.. aka carcinoma in situ
epithelial dysplasia
what is the essential feature of SCC?
the invasion of tumor cells through the epithelial basement membrane into the underlying CT
who does pleomorphic adenoma occur in and how is it treated?
usually older people (40’s) and surgical removal
benign well circumscribed tumor composed of fibrous CT and rounded or globular calcifications resembling cementum… considered fibro ossetia lesion because of fibrous CT and calcifications
cementifying fibroma
benign nonencapsulated infiltrating tumor composed of pale staining mucopolysaccharide substances with diseases cells having long process
odontogenic myxoma
where are the minor salivary gland tumors most commonly located?
junction of hard and soft palate
occurring within various forms
pleomorphic
rounded structure with clear center
ghost cells
surrounded by a capsule of fibrous CT
encapsulated
nonaggressive cystic lesion lined by odontogenic epithelium with associated ghost cell keratinization most commonly seen in under 40 yrs old
calcifying odontogenic cyst
what are the specific names of salivary glands?
adenoid cystic carcinoma
mucoepidermoid carcinoma
this is a lesion showing a mixture of red and white areas
speckled leukoplakia
this remains localized and does not have the ability to spread to distant sites
benign tumor
malignant salivary gland tumor, most likely associated with the parotid gland… it can appear within the one uninor multiocular RL in mandibular PM and molar
mucoepidermoid carcinoma
this is a benign tumor of squamous epithelium that appears clinically as a relatively small esophagus pedunculated or sessile growth
papilloma
disordered growth
dysplasia
this can cause an expansion of bone and 80% occurs in mandible in the molar ramus area.. treat with surgical excision… common recurrence follow up within 6 mths
amelobastoma
benign, localized overgrowth of melanocytes
nevus
formation of tumors by the uncontrolled proliferation of cells
neoplasia
who is periapical cemental dysplasia more common in
black females in older population
