Melanomas are the most aggressive skin cancers.

黑色素瘤是最具侵蚀性的皮肤癌。

Melanomas are more common if you have periodic intense exposure to the sun.

如果你定期暴露在强烈的阳光照射下，黑色素瘤会更常见。

A 2011 Australian study of 1,621 people found that people randomly selected to apply sunscreen daily had half the rate of melanomas of people who used cream as needed.

2011年，澳大利亚针对1621人进行的一项研究发现，每天随机选择涂抹防晒霜的人患黑色素瘤的几率是按需使用防晒霜的人的一半。

There is continuing debate as to how effective sunscreen is in reducing melanomas—the evidence is weaker than it is for preventing other types of skin cancer.

关于防晒霜是否能有效减少黑色素瘤，争议仍然存在——相较于预防其他皮肤癌，防晒霜能减少黑色素瘤的证据还不充分。

Irregularly shaped brown or blue spots in the nail bed can be melanomas.

甲床上不规则的棕色或蓝色点可能是黑索瘤。

Melanomas can appear even in areas of skin that do not get a lot of sun.

黑色素瘤甚至会出现在不怎么能照到阳光的地方。

The most critical questions raised by the McCain documents concern his four melanomas.

麦凯恩的资料留给人最大的疑问是他的四个黑色素瘤。

Objective To explore the ct and MR imaging characteristics of intracranial melanomas.

目的探讨颅内黑色素瘤的CT和MR影像特点。

Melanomas and deaths were subsequently tracked through national registries until 2011.

此后直到2011年，研究人员根据全国登记记录追踪了黑色素瘤病例数和死亡人数。

Uveal melanomas can be detected by ophthalmologic exam, fluorescein angiography, or sonography.

葡萄膜黑色素瘤可以通过眼科学检查、荧光素血管造影术、或超声检查。

So dermatologists should inspect scalps for melanomas, and beachgoers should wear wide-brimmed hats.

所以皮肤科医师应该着重检查患者头皮处的黑色素瘤，而海滩常客们则应佩戴宽沿帽。

Of those 60,000 deaths, an estimated 48,000 are caused by malignant melanomas, and 12,000 by skin carcinomas.

在这6万死亡中，估计有48000是由恶性黑素瘤造成的，12000是由皮肤癌造成的。

Melanoma is far more dangerous. Melanomas can appear even in areas of skin that do not get a lot of sun.

黑色素瘤的危害性远远大于其他症状，得了黑色素瘤的皮肤不能接触太多的阳光。

Using differential recognition, physicians and patients alike can distinguish ugly melanomas from surrounding moles.

透过监别确认，医师与病患一样可以区分恶性黑色素瘤与周围的痣；

Five people a day are diagnosed with malignant melanomas. It is a killer and affects more people here than in Australia.

每天有五名患者被确诊患上恶性黑色素瘤，这是一种致命疾病，在英国比澳大利亚影响还要大。

Melanomas appear as a mole or freckle that changes colour, size or shape, but are the most dangerous type of skin cancer.

黑色素瘤开始时呈现色素痣或雀斑的外观，但颜色、大小和形状上有区别，是皮肤肿瘤中最危险的一类。

Malignant melanomas, other cancers and conditions are the consequence of not taking the proper precautions, "added Dr Leitner."

恶性黑素瘤、其它癌症和病症是未采取适当预防措施的后果。

Murray said. "This was the pivot point that changed how everybody thought about these smaller, presumed-malignant melanomas."

患者并没有死于肿瘤。正是这种观点改变了（多年来）人们对于小的可疑恶性黑色素瘤的认识。

But, he added, these melanomas often look very different from surrounding moles and can still be flagged using differential recognition.

但是，他附带表示，透过监别确认，这些黑色素瘤经常与周围的痣长得不同且是坑坑疤疤的。

Last month, an epidemiological study of 51, 704 melanoma cases nationwide showed that melanomas of the scalp and neck are disproportionately fatal.

上个月，针对全国范围51 704例黑色素瘤病例的流行病学研究显示，头皮和脖颈处黑色素瘤致命比例之高异乎寻常。

Malignant melanomas, seen mostly on the skin, originate mainly from epithelial melanocytes and some originate from chromatophore nevus and dermis.

黑色素瘤主要起源于表皮黑素细胞，少数起源于色素痣，真皮等。

Lymphomas, leukemias, malignant melanomas, sarcomas all begin with that microscopic accident, a mutation in one cell: omnis cellula e cellula e cellula.

淋巴瘤、白血病、恶性黑色素瘤和肉瘤都开始于极微小的事件——一个细胞发生了变异（用拉丁语说，就是omnis cellula e cellula e cellula）。

Small cell carcinomas usually do not show large prominent nucleoli, whereas melanomas often do, accompanied by occasional intranuclear pseudoinclusions.

小细胞癌常无明显的大核仁（而恶性黑色素瘤常有），偶尔伴有核内假包涵体。

Conclu sion: CNS malignant melanomas are extremely rare tumors of the central nervous system. Misdiagnosis rate remain at high level and prognosis is poor.

结论：中枢神经系统恶性黑色素瘤发病率低，误诊率高、预后差。

A 2011 Australian study of 1 621 people found that people randomly selected to apply sunscreen daily had half the rate of melanomas of people who used cream as needed.

2011年澳大利亚的一项涉及1 621人的研究发现，每天随意选择涂防晒霜的人患黑瘤的几率是需要时才涂防晒霜的人的一半。

After 15 years, the number of people who developed melanomas from the discretionary sunscreen group was twice that of the group who had applied daily sunscreen in the trial.

15年后，间断使用防晒霜组黑色素瘤的发生率是每天连续使用组的两倍。

Objective: the malignant melanomas in nasal cavity Wwas rare, by observing the clinicopathologic features of them to obtain the points of improving the diagnostic correct rate.

目的：观察鼻腔恶性黑色素瘤临床病理特征，探索提高其诊断准确率的要领。

Doctors removed the two new melanomas — one on his temple, another on his left arm — and at least one of his lymph nodes as well, likely to ensure that the cancer had not spread.

医生第二次又切除了他身上的两个黑素瘤，一个长在太阳穴上，另一个长在他的左臂上。幸好他至少有一个淋巴结是健康的，说明癌细胞应该还没有扩散。

Of the cases identified on the campaign day in 2008, more than 3000 were basal cell carcinomas (non-melanomas) and 354 were malignant melanomas, the most deadly type of skin cancer.

2008年举行活动这天确诊的病例中，3000多例为基底细胞癌(非黑色素瘤类)，354例为恶性黑色素瘤，这是最致命的皮肤癌类型。