1
be diagnosed with melanoma
melanoma 作疾病名时通常不可数，不加 a。
She was diagnosed with melanoma last year.
她去年被诊断出黑色素瘤。
黑色素瘤；黑素瘤
melanomas — plural of melanoma
先理解核心含义，再看它在真实句子里的用法。
黑色素瘤；黑素瘤
a malignant tumor of melanocytes, usually occurring in the skin
She was diagnosed with melanoma last year.
她去年被诊断出黑色素瘤。
由黑色素细胞产生的深色色素、通常为恶性的肿瘤,最常见于皮肤。
A dark-pigmented, usually malignant tumor arising from a melanocyte and occurring most commonly in the skin.
由黑色素细胞组成的几种恶性肿瘤(通常在皮肤上)
any of several malignant neoplasms (usually of the skin) consisting of melanocytes
The biopsy showed that the growth on her leg was a melanoma.
活检显示她腿上的肿块是黑色素瘤。
Using sunscreen every day lowers your risk of melanoma.
每天使用防晒霜能降低患黑色素瘤的风险。
He noticed the mole had changed and asked the doctor to check it for signs of melanoma.
他注意到那颗痣发生了变化，便请医生检查是否有黑色素瘤的迹象。
melanoma 作疾病名时通常不可数，不加 a。
She was diagnosed with melanoma last year.
她去年被诊断出黑色素瘤。
develop melanoma 表示“患上黑色素瘤”，melanoma 前不加冠词。
He developed melanoma after years of sun exposure.
他多年日晒后患上了黑色素瘤。
指具体肿瘤时是可数名词，复数形式为 melanomas；也作 melanomata。
She noticed a melanoma on her forearm.
她注意到前臂上有一颗黑色素瘤。
Not this
He was diagnosed with a melanoma.
Use this
He was diagnosed with melanoma.
当 melanoma 表示“黑色素瘤这种疾病”时为不可数名词，不用不定冠词 a；a melanoma 仅指一个具体的黑色素瘤。中文没有冠词概念，容易多加 a。
Not this
The biopsy confirmed melanoma cancer.
Use this
The biopsy confirmed melanoma.
melanoma 本身已指一种恶性肿瘤（黑色素瘤），再加 cancer 是中文“癌症”造成的冗余，英文中不这样说。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
恶性黑色素瘤
The biopsy confirmed a malignant melanoma on his shoulder.
活检证实他肩膀上有一个恶性黑色素瘤。
黑色素瘤风险
Sunburn in childhood increases your melanoma risk.
儿童时期晒伤会增加患黑色素瘤的风险。
转移性黑色素瘤
The new drug has shown promise in treating metastatic melanoma.
这种新药在治疗转移性黑色素瘤方面显示出前景。
黑色素瘤筛查
Doctors recommend regular melanoma screening for people with many moles.
医生建议长有很多痣的人定期进行黑色素瘤筛查。
晚期黑色素瘤
She was diagnosed with advanced melanoma and began immunotherapy.
她被诊断出患有晚期黑色素瘤，并开始免疫治疗。
Use melanomas naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想melanin（黑色素）加-oma（肿瘤），黑色素瘤就是melanoma。想象皮肤上黑痣变成恶性肿块。
语域：formal 常见场景：医学报告、病理学资料、健康科普文章 melanoma 属于医学正式用语，通常用于医疗文书、学术论文或健康科普中；日常口语中较少单独使用。
All six words share the stressed /-oʊmə/ ending with melanoma, so they rhyme. Beware lookalikes such as melanin /ˈmɛlənɪn/ and melancholy /ˈmɛlənˌkɑːli/, which begin like melanoma but do not rhyme.
Dictionary facts from ECDICT, WIKTIONARY.