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75 Cards in this Set
- Front
- Back
Adenoma |
Benign epithelial neoplasm of glandular tissue (i.e. Fibroadenoms of the glands of the breast) |
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Choristoma |
Benign mass of tissues not normally found at the site of origin. |
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Hamartoma |
(Rare) benign mass of tissues usually found at site of origin. (Seen in lung) |
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Sarcoma |
Malignant neoplasm arising from mesenchymal tissue (blood & lymphatics).
- don't commonly metastasize to lymph nodes |
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Teratoma |
Neoplasm derived from germ cells that represent all 3 layers (ectoderm, endoderm, and mesoderm) |
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Fibroadenomas |
Common in breast tissue |
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Mesothelioma |
Benign lesion of thoracic & abdominal lining of the body cavity |
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Mesothelioma |
Benign lesion of thoracic & abdominal lining of the body cavity |
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Rhabdomyosarcoma |
Malignant tumor of skeletal muscle (usually seen in soft tissues) |
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Sessile polyp |
Attached by a broad base as opposed to pedunculated |
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Carcinoma |
Tumor of the epithelial lining: 1) bladder (urothelial) 2) cervix (glandular epithelium or endometrium)
- metastasize through lymphatics |
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Leiomyomas |
White; benign lesion of smooth muscle (common in uterus) |
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Leiomyomas |
White; benign lesion of smooth muscle (common in uterus) |
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Lipomas |
Yellow fatty rumors occurring beneath the epidermis. |
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Leiomyomas |
White; benign lesion of smooth muscle (common in uterus) |
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Lipomas |
Yellow fatty rumors occurring beneath the epidermis. |
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Melanomas |
Malignant; increase in size quickly and are darkly pigmented. |
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Leiomyomas |
White; benign lesion of smooth muscle (common in uterus) |
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Lipomas |
Yellow fatty rumors occurring beneath the epidermis. |
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Melanomas |
Malignant; increase in size quickly and are darkly pigmented. |
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Nevus |
Benign counter part to a melanoma (very common; light to dark brown) |
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Hemangioma |
Benign vascular lesion of the skin |
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Neoplasm |
"New growth" - Monoclonal proliferation of cells (same clone produced over and over again) |
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Flow Cytometry |
Indicates DNA content, aneuploidy, and growth fraction. |
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In Situ Cancers |
If limited to epithelium are noninvasive (local excision = 100% cure rate) |
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CA-125 |
Tumor Marker for ovarian cancer |
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Anaplasia |
"Lack of differentiation" - Pleomorphism (variation on size and shape) - hyperchromatism (excessive coloration or staining) |
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MYC Oncogene |
Major transcriptional growth factor (bind cyclin D1--> activate cell cycle)
- activated in Burkitt lymphoma |
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HER2 |
Encodes for epithelial growth factors (EGF) receptors to be placed on the cell surface |
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MYC Oncogene |
Major transcriptional growth factor (bind cyclin D1--> activate cell cycle)
- activated in Burkitt lymphoma |
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HER2 |
Encodes for epithelial growth factors (EGF) receptors to be placed on the cell surface |
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p53 |
Tumor suppressor |
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MYC Oncogene |
Major transcriptional growth factor (bind cyclin D1--> activate cell cycle)
- cMYC activated in Burkitt lymphoma t(8;14) |
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HER2 |
Stimulated by ERBB2 Encodes for epithelial growth factors (EGF) receptors to be placed on the cell surface
Tx: antibodies for HER2 receptors |
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p53 |
Tumor suppressor - inactivated during colon cancer |
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APC |
Tumor suppressor - Inactivated during colon cancer (loss of B-catenin destruction; B-catenin translocation to the nucleus--> transcription factor promoting growth)
- activation of WNT signaling pathway |
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RAS |
Encode GTP-binding protein (located under the cell membrane) |
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t(9:22) transloction |
Chronic Myelogenous Leukemia - translocation causes uncontrolled non-receptor tyrosine kinase activity of BCR-ABL fusion gene.
Tx: inhibit tyrosine kinase |
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BCL2 Overexpression |
Block apoptosis
Tx: give drugs that activate caspases |
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Nuclear Translocation if B-cantenin |
w/ mutational loss of APC gene = Colon cancer |
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N-MYC gene |
Amplification occurs in 30-40% of neuroblastomas |
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N-MYC gene |
Amplification occurs in 30-40% of neuroblastomas |
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BCL1 & BCL2 gene |
Mutated = non-Hodgkin lymphomas
- BCL2 inhibit apoptosis |
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Dysplasia |
Alteration in size and/or shape |
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Familial tumors |
Defective copy of a tumor suppressor gene
- melanoma = p16 (inhibit cyclin-dependent kinases) |
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Lyn mutation |
Seen in immunodeficiency states |
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RB Gene |
Controls the G1 to S phase transition in the cell cycle (checkpoint) |
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TGF-B |
Inhibit cell proliferation by activating growth-inhibiting genes (CDKIs)
- all pancreatic cancers have at least one mutation - 83% colon cancers have at least one mutation |
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HMSH2 |
Repair DNA damage
- also hPMS1, hPMS2, hMLH1 |
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Neurofibromatosis Type 1 |
Loss of NF1 gene which encodes for GTPase-activating protein--> active RAS trapped
- Lesion attached to peripheral nerve |
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von Hippel-Lindau (vHL) gene |
Tumor suppressor; produces a protein that binds hypoxia-inductive factor 1-alpha (HIF-1-alpha)
- loss of binding = activation of angiogenesis factors |
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CD44 |
Plays a role in cell adhesion; enables malignant cells to metastasize |
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Immunodeficiency Diseases |
Increased risk for neoplasia (I.e HIV) |
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Xeroderma Pigmentosum |
Autosomal recessive condition w/ loss of nucleotide excision repair if DNA |
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Vinyl Chloride |
Rare cause of liver cancer |
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Vinyl Chloride |
Rare cause of liver cancer |
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Arsenic |
High risk of skin cancer |
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Vinyl Chloride |
Rare cause of liver cancer |
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Arsenic |
High risk of skin cancer |
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Asbestos |
Mesothelioma and/or bronchogenic carcinomas |
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Vinyl Chloride |
Rare cause of liver cancer |
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Arsenic |
High risk of skin cancer |
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Asbestos |
Mesothelioma and/or bronchogenic carcinomas |
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Benzene |
Linked to Leukemias |
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Beryllium |
Lung cancer |
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Nickel |
Respiratory tract cancers |
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Nickel |
Respiratory tract cancers |
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Naphthalene |
Risk factor of urinary cancer |
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Cyclophosphamide |
Alkylation agent used for chemotherapy that has carcinogenic effects (DNA Damage) |
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HPV |
- Produces E7 which binds Rb --> transcription
- E6 binds and inactivated p53 |
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HPV |
- Produces E7 which binds Rb --> transcription
- E6 binds and inactivate p53 |
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HBV & HCV |
Inactivate tumor suppressor p53 |
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a-Fetoprotein (AFP) |
Protein marker for hepatic ellipse carcinomas and some testicular carcinomas |
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CA-19-9 |
Tumor marker for colonic and pancreatic tumors |
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Immunostains |
Used to detect antigenic characteristics like protein expression to help characterize the cells origin |