melanoma


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Related to melanoma: Nodular melanoma

melanoma:

see skin cancerskin cancer,
malignant tumor of the skin. The most common types of skin cancer are basal cell carcinoma, squamous cell carcinoma, and melanoma. Rarer forms include mycosis fungoides (a type of lymphoma) and Kaposi's sarcoma.
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Melanoma

 

melanoblastoma; a malignant tumor that consists of melanin-producing cells.

Factors conducive to the development of melanomas include injury and hormonal stimulation, especially during puberty. Melanomas generally occur on the skin; less often, they appear on the retina, pia mater, nasopharynx, larynx, esophagus, and mucosa of the intestine and other organs. Melanomas usually develop at the site of pigmented or depigmented birthmarks, but they may also appear elsewhere. The process starts with a barely perceptible, painless tumor on the skin, sometimes resembling a wart, which gradually becomes dark brown or black. Occasionally, it ulcerates and bleeds. In case of injury, the tumor may enlarge quickly and become tuberous, dense at the base, and stiffer. The regional lymph nodes enlarge. The initial signs that a melanoma is developing at the site of a birthmark are the birthmark’s enlargement, an intensification or reduction in its pigmentation, and the appearance of a red rim around it. Treatment involves prompt surgical intervention, based on early diagnosis, and the use of radiotherapy and drugs to retard the growth and reproduction of the cells.

I. IA. SHAKHTMEISTER

melanoma

[mel·ə′nō·mə]
(medicine)
A malignant tumor composed of anaplastic melanocytes.
A benign or malignant tumor composed of melanocytes.

melanoma

Pathol a malignant tumour composed of melanocytes, occurring esp in the skin, often as a result of excessive exposure to sunlight
References in periodicals archive ?
campaign was spearheaded by the MRF's CURE Ocular Melanoma (CURE OM) initiative, which was founded in 2011 to increase OM awareness, research funding and patient and caregiver education and support.
The report on melanoma treatment market titled " Melanoma Therapeutics Market to 2020 Rising Prevalence and Evolving Treatment Algorithms to Drive Market Growth " talks in-depth about Melanoma, which is a highly heterogeneous disease comprising Cutaneous Melanoma (CM), Ocular Melanoma (OM), Mucosal Melanoma (MM), melanoma of the internal organs, and, according to some classifications, melanoma of the soft parts (non-bony and non-cartilaginous tissues) of the body.
But the second primary melanoma tends to be thinner than the first one, which makes sense," Dr.
Chromatid breaks indicative of a decreased ability to repair DNA damage caused by UV-B exposure is a factor in the development of basal cell and squamous carcinoma, but not melanoma.
In contrast, melanoma is more associated with acute intermittent doses.
The lesion was diagnosed as a primary malignant melanoma because all clinical, panendoscopic, and ophthalmologic examinations conducted to identify a possible primary lesion elsewhere were negative.
The ABCD criteria for melanoma detection are: A for asymmetry, B for irregular borders, C for multiple colors, and D for a diameter greater than 6 mm.
Approximately 9,200 people are expected to die of skin cancer this year - 7,300 from melanoma alone, according to statistics compiled by the Center for Dermatology Care in Thousand Oaks.
When melanoma is detected in its earliest stages, it is highly curable.
The study helps executives estimate Malignant Melanoma market potential, assess unmet need, develop drug forecasting models, and build population-based health management frameworks.
To kick off the partnership, Leanda and the MRF will co-host the first annual Miles for Melanoma 5k run/walk in Miami, Florida on November 1 at Virginia Key Beach Park.
These melanoma field cells are morphologically normal junctional melanocytes and thus cannot be identified using histopathologic criteria.

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