Posts Tagged ‘Type’

Papillary Cancer – The Most Common Thyroid Cancer

May 4th, 2010

- Papillary carcinoma is a relatively common well-differentiated thyroid cancer.
- Papillary/follicular carcinoma must be considered a variant of papillary thyroid carcinoma.
- Papillary carcinoma may be overtly or minimally invasive. In fact, these tumors may spread easily to other organs.
- Papillary tumors have a propensity to invade lymphatics but are less likely to invade blood vessels.
- Papillary carcinoma typically arises as an irregular, solid or cystic mass that arises from otherwise normal thyroid tissue.
- About 75 – 85% of all thyroid cancers diagnosed in the United States are papillary carcinoma.
- The cause of this cancer is unknown. A genetic defect may be involved. High-dose external radiation to the neck increases the risk of developing thyroid cancer.

Treatment for Papillary Cancer
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Surgery

With this type of thyroid cancer treatment, part or all of the thyroid gland is removed. Additionally, if any nearby lymph nodes have been affected by the cancer, they too may be removed. Following this type of thyroid cancer treatment, individuals will begin taking thyroid hormone pills to replace the thyroid hormones that used to be secreted by the thyroid gland which also serves to suppress re-growth of the thyroid cancer.
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Chemotherapy

Used almost exclusively as a thyroid cancer treatment for anaplastic cancer, chemotherapy is the use of anticancer drugs to kill malignant (or cancerous) cells.
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Radioactive iodine therapy

Usually employed as a follow-up thyroid cancer treatment to surgery, patients ingest a measured amount of radioactive iodine. This iodine then usually kills any thyroid tissue that was unable to be removed during the surgical procedure.
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External radiation

External radiation is a thyroid cancer treatment option that involves directing radiation at residual tumor cells from an outside radiation source to help shrink or kill these cells. In patients for whom surgery may not be feasible, external radiation is usually the next preferred option.

Melanoma – Type of skin cancer

March 2nd, 2010

Melanoma is a disease of the skin in which cancer cells are found in the melanocytes, the cells that produce color in the skin or pigment known as melanin. Melanoma usually occurs in adults, but it may occasionally be found in children and adolescents. Melanoma may also be called cutaneous melanoma or malignant melanoma. Melanoma is the rarest, but most virulent, form of skin cancer.

- A flat or raised growth of black or brown color, often mixed with blue, red, or white parts, from 6 mm to few cm in size, may appear anywhere on the skin, in men mostly on the trunk, in women on the back and legs, and parts of the skin that are usually hidden from the sun, but were exposed to intense sunlight for short periods.
- Melanoma may show one or more of typical ABCDE characteristics: Asymmetry: one part of the tumor differs from other parts; Border of the tumor is irregular; Color: tumor may be of different colors, often several colors are present in one tumor; Diameter above 6 mm (in most cases), Evolving: lesion growths and changes color and appearance with time.

Melanoma Skin Cancer

Melanoma Subtypes :
- Superficially spreading melanoma grows relatively slowly.
- Nodular melanoma grows rapidly – weeks to months. It tends to ulcerate and bleed.
- Acral lentiginous melanoma appears in dark skinned people (Afro-American, Asian, and Hispanic), mostly on their palms, soles, and under nails.
- Lentigo maligna melanoma. A macule grows slowly (years) as a patch, over 1-3 cm in size. It does not spread to other organs.

Treatment :
- Chemotherapy is often used to treat melanoma that has returned or spread.
- Medications such as interferon or interleukin, which boost the immune system to fight the cancer, may be useful in addition to chemotherapy and surgery. This kind of treatment is called immunotherapy. However, interferon has many side effects and can be difficult to tolerate.
- Radiation treatments may be used to relieve pain or discomfort caused by cancer that has spread.
- Cancer that has spread elsewhere in the body is sometimes removed with surgery to relieve pain or discomfort.

Squamous Cell Carcinoma – Type of skin cancer

March 1st, 2010

Squamous cell carcinoma (SCC) is the second most common form of skin cancer and accounts for 20% of cutaneous malignancies.Squamous cell carcinoma frequently arises on the sun-exposed skin of middle-aged and elderly individuals.

- Squamous cell carcinoma arises from squamous cells in the uppermost layer of epidermis – stratum corneum.
- It appears as a scaly, reddish, dome-shaped, fleshy nodule, from 5 mm to few cm (if left untreated) in size, often with a central ulcer. It mostly appears on sun exposed areas of the skin or lips.
- It grows slowly, but it can spread to other organs.

Squamous Cell Carcinoma

Risks for squamous cell skin cancer include:
- Having light-colored skin, blue or green eyes, or blond or red hair.
- Long-term, daily sun exposure (such as in people who work outside).
- Many severe sunburns early in life.
- Older age.
- A large number of x-rays.
- Arsenic.
- Chemical exposure.
- Chronic skin ulcers.
- Actinic keratoses (These lesions have the potential to progress to squamous cell carcinoma.).
At first cancer cells tend to spread only as far as the nearest lymph nodes clusters of tissue found in the underarms, groin, neck, and other parts of the body that help fight disease. When cancer spreads, they often trap cancer cells. structures, which filter out and trap the cancer cells. If spread has occurred, the affected lymph nodes can be removed before cancer spreads to vital organs.
With early detection and proper treatment, SCC is curable. Allowed to progress, SCC can invade and destroy much of the tissue surrounding the cancerous tumor, which can be disfiguring.
Some SCCs, such as those that develop on a lip or an ear, can be particularly aggressive. Left untreated, aggressive SCCs have a greater risk for metastasis (spreading) to the lymph nodes and other internal organs. This makes early diagnosis and treatment of SCC essential.

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