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- A 56 y/o woman has a history of extensive exposure to ultraviolet radiation from both the sun and artificial tanning sources( tanning lights&beds) since childhood. The excessive wrinkling observed is caused primarily by which one of the the following effects of UV rays on the skin? A)damaged elastic fibers B)dilated follicles with plugged orifices C)increased size and activity of melanocytes D)thickening of the the stratum Cornell E)vascular sclerosis of dermal blood vesselsWhat may account for the increased incidence of cancer among elderly people?Why do statistics show that skin cancer fatality rates are higher among African Americans than other ethnic groups?
- Skin cancer is epidemic, but diverse. Explain the anatomical differences between the cells that give rise to melanoma, basal cell carcinoma, and squamous cell carcinoma.Identify either a specific form of cancer. Describe some details about the cancer.Mark 162. A9 year-old girl has unilateral loss of vision because of a neoplasm. Two of her cousins had an enucleation operation for ocular neoplasms, and one also had an osteosarcoma. Tissue from the lesion is shown. Which of the following is the most likely diagnosis? A) Astrocytoma B) Malignant melanoma C) Meduloblastoma D) Neuroblastoma E) Retinoblastoma