Question

Name: Integumentary System Case Study: Jon's Story (Each question is worth 0.5 pts) At 63 years old, Jon was retiring early by most people's standards, but he felt it was time and he was looking forward to it. His mind wandered as he raked the dry remnants of his front yard. The African summer had been hotter than usual but he had always worked outdoors and the warmth of the sun on his face felt good. Jon had grown up in Africa, the son of a missionary. After going to college in America, he had returned to work for the church, bringing his new wife and child with him. "That was forty years ago," he thought. Now Jon was finally giving in to his wife June, and they were leaving for the farm they had purchased near the city of Stavanger on the southern coast of Norway, she had always wanted to move there since visiting 20 years ago Sand and grit picked up by a gust of hot wind stung his face. He shut his eyes tightly and wiped them with the back of his hand. He looked down. "Old man's hands," he thought. His hands reminded him that lune had asked him to see a doctor as soon as they were settled. He ran his hands over his balding head. "One more thing to worry about," he thought. One of the Mission Station doctors where Jon worked had told him that he should see a dermatologist. The years of sun exposure Jon had endured had taken their toll. The doctor had mentioned something about actinic keratosis, but "skin cancer" is what Ion remembered thinking. Jon's hands, forearms, scalp, face, and neck were covered with scaly patches of yellow-brown to red-brown skin. The lesions, which looked like large freckles, ranged in size from a half to one centimeter in diameter. They gave his skin an odd, almost leopard like appearance. Jon never wore sunscreen; it wasn't easily available in Africa, and he never really thought about it. Jon had been healthy all his life. Even at 63, he could still work harder than most men half his age, and he did. Jon has experienced a lifetime of intense sun exposure. As a result, his skin is showing the signs of frequent and prolonged environmental stress. Jon has been diagnosed with a skin disorder that you most likely have seen, but probably did not recognize. People who work outdoors frequently develop this condition. In many cases the lesions will resolve with treatment, but sometimes they can become cancerous. The skin, like any organ system, is complex in its structure and function, and we must care for it to maintain our overall health. If we do not, the consequences to our health can be significant. Jon had finally settled into his new home on the Scandinavian Peninsula. Between the duties of the farm and a lifetime of memories to unpack, he had kept quite busy during the three months since he had last felt the heat of the African sun. Jon now sat in a very clean, modern medical office waiting to see a dermatologist, a medical specialist for skin disorders. He was led into a small, well-lit examination room and told to change into a hospital gown. "Do I have to take off everything?" Jon asked, looking somewhat perturbed. "Yes. The doctor will be doing a complete examination of your skin. He will be in shortly." The nurse turned and left the room. After a few minutes, the doctor came in carrying a medical chart. "Hello, Mr. Johnson. I am Dr. Angstrom. How are you today?" "Very well, thank you." responded lon, extending has hand toward the doctor. Tam not sure, though, why I had to take off all my clothes so you could look at these marks on my head and arms. And please call me lon. "Very well, Mr. Johnson - Jon. Although I have reviewed the medical records you provided, I would like to do a thorough, head-to-toe examination of your skin to catch any potential problem areas. I noted from your chart that you have never had a complete dermatologic examination, and your wifestyle included more frequent and prolonged sun exposure than most people I have seen. "You were right to come in to see me. Skin cancer can be quite dangerous if not caught early. The discolored spot on your head and arms are actini keratosis, what many call sunspots, Keratoses aren't uncommon, but they can be an Integument Case Study - Page 1 of 4

Answer 1

1, Actinic Keratosis(AK) called solar keratosis the lesions in the arms develop into squamous cell carcinoma and it eventually develops into skin cancer.
2, type of skin in forarm, neck, face, scalp, hands and back regions are composed of dead cells called keratinocytes 95% cells in the epidermis, it becomes squamous cell carcinoma when it exposed to prolonged sunlight.
3, Actinic keratosis called solar keratosis. the lesions arise in the skin due to frequent sun exposure of UV rays from sun and it becomes skin cancer.
4, It is a very common skin precancer.people with a bald head or thinning hair and works outdoors in the sun highest risk factors for hair loss.