Chapter 7 Flashcards
Unlike hyperplasia, neoplasia is controlled and an abnormal process
False: neoplasia is uncontrolled and abnormal
What are the two classifications of tumors?
Benign & Malignant
What are the key factors of benign tumors?
remains localized
well-differentiated
encapsulated
slow growth
no metastasis
What are the key factors of malignant tumors
anaplastic or well differentiated
slow to rapid growth
mitotic figures may be numerous
invasive
metastasis likely
In naming of tumours, the prefix is determined by the tissue or cell of orgin
True
Which suffix is used to indicated a tumor that is benign?
oma
What is the term for tumors of epithelial origin?
carcinomas
What is the term for tumors of connective tissue origin?
Sarcomas
How are malignant tumors treated?
Surgery
Chemo
Radiation
What is a benign tumor of squamous epithelium
papilloma
Define premalignant
A lesion that if left untreated has the potential to develop into malignancy
What is leukoplakia called if we are unsure of that specific cause?
idiopathic leukoplakia
What is the development of persistent slowly spreading keratotic, warty plaques?
Proliferative verrucous leukoplakia
What is the process of treating leukoplakia?
idenfity cause, irritation removed, biopsy,
What is a key factor about proliferative verrucous leukoplakia?
Persists even after surgical removal, high risk of developing into a carcinoma
What percent of erythroplakia turns out to be squamous cell carcinoma?
90%
What is the name of a lesion that shows a mixture of red and white areas?
Erythroleukoplakia or speckled leukoplakia
Which habit is oral submucous fibrosis associated with?
betel-quid or areca nut chewing
Where do lesions of epithelial dysplasia typically arise?
Floor of mouth or tongue
What is the most common primary malignancy of the oral cavity?
Squamous cell carcinoma
What is a product of squamous cell carcinoma
Keratin
What are the keratinized cells within the tumor of squamous cell carcinoma called?
Keratin pearls
Where are the most common locations of squamous cell carcinomas?
floor of the mouth, ventrolateral tongue, soft palate, and tonsillar pillar.
How many stages are there in TNM staging system
4
Which specific type of squamous cell carcinoma has a much better prognosis?
Verrucous Carcinoma
What is Verrucous carcinoma associated with?
Smokeless tobacco
A slow-growing, numerous papillary epithelial projections, exophytic tumour with pebbly white and red surface.
Verrucous carcinoma
What skin tumor is associated with chronic sun exposure?
Basal cell carcinoma
With basal cell carcinoma, metastasis is common and the ulcer stays the same size
false
Metastasis is very rare
Ulcer continues to enlarge with destruction
What is the most common salivary gland neoplasm?
Pleomorphic adenoma
The name for benign tumors ?
Adenomas
Name for malignant salivary gland tumors
adenocarcinomas
Where is the most common extraoral location for pleomorphic adenoma?
Parotid Gland
What’s another name for pleomorphic adenoma
Benign Mixed Tumor
This tumor appears as a slowly enlarging, nonulcerated, painless, dome-shaped mass
Pleomorphic adenoma or benign mixed tumor
Which tumor is present at birth and appears as a pedunculated mass on the gingiva?
Congenital epulis
Which tumor is vascular and is benign and most commonly appears on the tongue?
Hemangioma
Which tumor is less common than the hemangioma, present at birth, and most commonly found on the tongue?
Lymphangioma
What are two malignant vascular tumors
Angiosarcoma & Kaposi sarcoma
Which tumor is a component of
gardner syndrome?
Osteoma
What are the two tumors of cartilage?
Chondroma & Chondrosarcoma
What is the only treatment available for cartilage tumors?
Surgical excision
Clinical signs of Leukemia?
persistant bleeding and diffuse gingival enlargement
With Multiple Myeloma, what are the immunoglobulins in their urine known as?
Bence Jones Proteins
Multiple Myeloma is a malignant proliferation of what type of cells?
Plasma Cells
The neoplastic cells in multiple myeloma produce what?
Immunoblobulin
Which odontogenic tumor can cause death if found in the maxilla?
Ameloblastoma
What is a look alike tumor with lateral periodontal cyst?
Ameloblastoma
What does AOT stand for?
Adenomatoid Odontogenic Tumor
How can you identify the difference between the adenomatoid odontogenic tumor and the Dentingerous Cyst?
The lining extends beyond the CEJ with the AOT
Which treatment therapy isn’t affective against chondrosarcoma?
Radiation and chemotherapy are not effective
Proliferation of immature white blood cells
Acute leukemia
Excess proliferation of mature white blood cells
Chronic leukemia
What tissue is found in Rhabdomyoma?
Tumor of striated muscle
What tissue is found in leiomyoma?
Smooth muscle
Key feature of cementoblastoma
Fused to the roots of a vital tooth
Which tumor has features of both an ameloblastic fibroma and an odontoma
Ameloblastic fibro-odontoma
Which tumor resembles verruca vulgaris and condyloma acuminatum?
Papilloma
Which tumor is associated with betel quid nut chewing
Oral submucous fibrosis
Which two tissues are a part of pleomorphic adenomas?
Epithelium and Connective
How to treat parotid gland tumors
Remove part of the parotid gland
Nn
Nn
Malignant salivary gland tumor composed of epidermoid cells?
Mucoepidermoid carcinoma
Most common malignant salivary gland neoplasm
Mucoepidermoid carcinoma
Four salivary gland tumors
Mucoepidermoid Carcinoma
Pleomorphic adenoma
Warthin tumor
Monomorphic adenoma
Tumor associated with liesegang ring calcifications
Calcifying epithelial odontogenic tumor
Calcifying epithelial odontogenic tumor
Pindborg tumor
Benign mesenchymal odontogenic tumor that has honey combed radiolucency and can cause tooth deplacement and is nonencapsulated
Odontogenic myxoma
Tumor that contains calcifications that resemble bone trabeculae
Central ossifying fibroma
Two tumors derived from nerve tissue
Neurofibroma & Schwannoma
Tumor-derived from Schwann cells
Schwannoma
Which type of neurofibromatosis is associated with von Recklinghausen disease?
Neurofibromatosis type I
