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Unit C Notes 2
Oncology
Question | Answer |
---|---|
Malignant Neoplasm | basal cell carcinoma, squamous cell carcinoma, malignant melanoma |
Basal Cell Carcinoma | 75% nonmelanoma skin cancers- rarely meets or causes death (facial areas) |
Squamous Cell Carcinoma | 2nd most common skin cancer- if treated early-75% cure |
Malignant melanoma | originates in lower epidermis and in melanocytes. Can spread to lymphatic and circulatory systems. Can mets. to skin, lung, liver, bone with 15% survival rate |
Difference in Basal and Squamous Cell Carcinoma appearances on skin? | Basal- more translucent appearance. Squamous- deep red appearance on skin. |
Malignant Neoplasms | Adenocarcinoma, Transitional Cell Carcinoma, Sarcomas |
Adenocarcinoma | Refers to cancer of glandular tissue- broad term used to describe cancer in areas such as esophagus, endometrium, cervix, lung, pancreas, prostate, stomach, sm. intes. |
Transitional cell carcinoma | cells lining passages of urinary tract. (include urethra and bladder) |
Sarcomas | arise from connective tissue. Highly invasive and mets. rapidly; bulky with abundant blood supply- growth can exceed bld supply |
Why are sacomas difficult to remove and treat. | Growth of sarcomas can exceed bld supply and cause ulceration and hemorrhage- common is the uterus. |