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What are the Tumors that are S 100 antigen positive?
Tumors that are S-100 antigen positive include melanoma, schwannoma, and some types of non-melanoma skin cancers. S-100 is a protein marker commonly found in these types of tumors and can be used in their diagnosis and classification.
What is an osteoblastic lesions?
It is an abnormality seen on X-rays where the bone is thicker or more dense in a specific area or areas. Both benign or malignant tumors can have this appearance. More commonly, malignant tumors are osteolytic, which means the bone appears to have a "hole" in it on xrays.
What type of helix is found in DNA?
The type of helix found in DNA is a double helix. This structure consists of two strands that twist around each other to form a helical shape. Each strand is made up of nucleotides that are connected by hydrogen bonds.
Can chocolate poisoning in humans be fatal?
Yes, chocolate poisoning in humans can be fatal, especially in cases of ingestion of large amounts of chocolate or high concentrations of theobromine, a toxic compound found in chocolate. Symptoms of chocolate poisoning can include vomiting, diarrhea, rapid heart rate, seizures, and in severe cases, death. It is important to seek immediate medical attention if chocolate poisoning is suspected.
What type of organisms are found in sandstone?
Organisms such as bacteria, algae, fungi, and lichens are commonly found in sandstone since they can withstand the harsh conditions like limited nutrients and water. In some cases, larger organisms like insects or small reptiles have been known to inhabit sandstone environments as well.
The most dangerous type of skin cancer is termed?
Though it is much less common that other skin cancers, malignant melanoma is much more dangerous unless it is found in the early stages; however, even the smallest lesion (mole or discoloration) may already be malignant. Seventy-five percent of all skin cancer deaths are due to malignant melanoma, which in 2012 totaled 55,000 deaths.
A research study in 2003 found mutations in what genes of patients with malignant melanoma?
In 2003 a group of Swedish researchers reported that 63 out of a group of 71 melanoma patients, or 89% of the group, had mutations in either the NRAS or the BRAF gene.
What is intraocular eye melanoma?
a rare form of cancer in which malignant cells are found in the part of the eye called the uvea, which contains cells called melanocytes that house pigments.
Identify the epidermal layer in which the following cancers arise a basal cell carcinoma b malignant melanoma c squamous cell carcinoma?
a. Basal cell carcinoma arises in the basal cell layer of the epidermis. b. Malignant melanoma arises from melanocytes located in the basal layer of the epidermis. c. Squamous cell carcinoma arises in the squamous cells of the epidermis, which are found in the upper layers of the epidermis.
Is a malignant tumor cancer free?
No. Malignant in this case means that they've found something nasty in it.
How do you know you have Melanoma?
If you suspect you have melanoma, see a doctor as soon as possible.
What is a medulloblastoma?
It is a highly malignant tumor usually found in children
Is melanoma life threatening?
AnswerIn short, yes! Melanoma is one of the few skin cancers that speads vertically (down into the skin). It easily spreads to other areas of the body. Thus, it should always be treated.Actually Bob Marley died from Malignant Melanoma which had metastasized (spread). The original mole he found was under his big toe. Malignant Melanoma affects one in fifty people in the U.K, It kills one in four of its victims and the incidence rate is doubling every ten years. You dont have to be a sun worshipper or use tanning salons to become a victim to this evil, aggressive cancer. Please look at this site for further accurate information on Malignant Melanoma:http://www.scansol.co.uk/forum/?gclid=CJ22sebqnJoCFUU_3god-3at9whttp://www.katiesmidnightwalk.com/index.htmMelanoma is the most serious type of skin cancer. It begins in skin cells called melanocytes.Melanocytes are the cells that make melanin, which gives skin its color. Melanin also protects the deeper layers of the skin from the sun's harmful ultraviolet (UV) rays.When people spend time in the sunlight, the melanocytes make more melanin and cause the skin to tan. This also happens when skin is exposed to other forms of ultraviolet light (such as in a tanning booth). If the skin receives too much ultraviolet light, the melanocytes may begin to grow abnormally and become cancerous. This condition is called melanoma.How and where does melanoma appear?The first sign of melanoma is often a change in the size, shape, or color of a mole. But melanoma can also appear on the body as a new mole.In men, melanoma most often shows up:on the upper body, between the shoulders and hipson the head and neckIn women, melanoma often develops on the lower legs.In dark-skinned people, melanoma often appears:under the fingernails or toenailson the palms of the handson the soles of the feetAlthough these are the most common places on the body for melanomas to appear, they can appear anywhere on the skin. That's why it is important to always examine your skin to check for new moles or changes in moles.With early diagnosis and treatment, the chances of recovery are very good.The chance of getting melanoma increases as you get older, but people of any age can get melanoma. In fact, melanoma is one of the most common cancers in young adults. Each year, more than 50,000 people in the U.S. learn that they have melanoma.Melanoma is a serious and sometimes life-threatening cancer. If melanoma is found and treated in its early stages, the chances of recovery are very good. If it is not found early, melanoma can grow deeper into the skin and spread to other parts of the body. This spread is called metastasis.Once melanoma has spread to other parts of the body beyond the skin, it is difficult to treat.» The Skin» Skin Cancer» What Causes Melanoma?» Signs of Melanoma» Risk FactorsGlossary Cancer A general term for more than 100 different diseases that involve the uncontrolled increase of abnormal new cells. These cells form tumors that can destroy surrounding tissue and spread throughout the body. Melanin A dark-brown to black pigment found in the skin, hair, and parts of the eyes. Melanocytes Pigment-producing cells located in the epidermis. Melanoma A highly malignant type of skin cancer that arises in melanocytes, the cells that produce pigment. Melanoma usually begins in a mole. Mole A cluster of melanocytes and surrounding supportive tissue that usually appears as a tan, brown, or flesh-colored spot on the skin. Also called a nevus. Skin The outer covering of the body, consisting of an outer layer, the epidermis, an inner layer, the dermis, and a layer of fatty tissue. Ultraviolet (UV) rays
What is choriocarcinomas?
It is a malignant cancer which is usually found on the placenta. It may also occur in the testis or ovary and is known to spread to the lungs. It is a member of the malignant area in the spectrum in gestational trophoblastic disease (GTD).
What is an astrocytin?
An astrocytin is a recognin, present on the cell membrane of astrocytes, found in the serum of patients with malignant glial tumours.
What are the Tumors that are S 100 antigen positive?
Tumors that are S-100 antigen positive include melanoma, schwannoma, and some types of non-melanoma skin cancers. S-100 is a protein marker commonly found in these types of tumors and can be used in their diagnosis and classification.
Cancer of the deepest layers of skin?
Cancer that originates in the deepest layers of the skin is often referred to as "melanoma." Melanoma is a type of skin cancer that begins in the melanocytes, which are pigment-producing cells responsible for giving color to the skin. Melanoma can develop in any part of the body where melanocytes are present, but it is most commonly found on the skin. Key characteristics of melanoma include: Color Changes: Melanomas often have uneven coloring, with variations in shades of brown, black, or even red and blue. Asymmetry: Melanomas are typically asymmetrical, meaning one half of the mole or lesion does not match the other half. Irregular Borders: The borders of a melanoma are usually irregular, with edges that may be notched or blurred. Diameter: Melanomas often have a larger diameter compared to common moles. They may be larger than the size of a pencil eraser. Evolution or Change Over Time: Melanomas may change in size, shape, or color over time. Any new or changing mole should be evaluated by a healthcare professional. Elevated Surface: While melanomas can be flat, some may have an elevated or raised surface. It's important to note that melanoma is a serious form of skin cancer that can spread to other parts of the body if not detected and treated early. Regular skin self-examinations and annual skin checks by a dermatologist can aid in early detection. If you notice any suspicious changes in moles or new pigmented lesions on your skin, it is crucial to seek prompt medical attention for evaluation and, if necessary, biopsy. Early detection and treatment significantly improve the chances of successful outcomes in melanoma cases.
