Kanker adalah istilah yang digunakan untuk penyakit di mana sel-sel abnormal membelah tanpa kontrol dan mampu menyerang jaringan lain. Sel-sel kanker dapat menyebar ke bagian lain dari tubuh melalui darah dan sistem limfe.

Kanker bukan hanya satu penyakit tapi banyak penyakit. Ada lebih dari 100 berbagai jenis kanker. Sebagian besar kanker diberi nama untuk organ atau jenis sel di mana mereka mulai – misalnya, kanker yang dimulai di usus besar disebut kanker usus besar; kanker yang berawal di sel-sel basal kulit disebut karsinoma sel basal.

Jenis kanker dapat dikelompokkan ke dalam kategori yang lebih luas. Kategori utama kanker termasuk:

Carcinoma – kanker yang dimulai di kulit atau pada jaringan yang mencakup garis atau organ internal.
Sarcoma – kanker yang dimulai di tulang, tulang rawan, lemak, otot, pembuluh darah, atau lainnya atau mendukung jaringan penghubung.
Leukemia – kanker yang dimulai di jaringan pembentuk darah seperti sumsum tulang dan menyebabkan sejumlah besar sel darah abnormal diproduksi dan masukkan darah.
Lymphoma and myeloma – kanker yang dimulai di sel-sel sistem kekebalan tubuh.
Central nervous system cancers – kanker yang dimulai di jaringan otak dan sumsum tulang belakang.

This is an example post, originally published as part of Blogging University. Enroll in one of our ten programs, and start your blog right.

You’re going to publish a post today. Don’t worry about how your blog looks. Don’t worry if you haven’t given it a name yet, or you’re feeling overwhelmed. Just click the “New Post” button, and tell us why you’re here.

Why do this?

• Because it gives new readers context. What are you about? Why should they read your blog?
• Because it will help you focus you own ideas about your blog and what you’d like to do with it.

The post can be short or long, a personal intro to your life or a bloggy mission statement, a manifesto for the future or a simple outline of your the types of things you hope to publish.

To help you get started, here are a few questions:

• Why are you blogging publicly, rather than keeping a personal journal?
• What topics do you think you’ll write about?
• Who would you love to connect with via your blog?
• If you blog successfully throughout the next year, what would you hope to have accomplished?

You’re not locked into any of this; one of the wonderful things about blogs is how they constantly evolve as we learn, grow, and interact with one another — but it’s good to know where and why you started, and articulating your goals may just give you a few other post ideas.

Can’t think how to get started? Just write the first thing that pops into your head. Anne Lamott, author of a book on writing we love, says that you need to give yourself permission to write a “crappy first draft”. Anne makes a great point — just start writing, and worry about editing it later.

When you’re ready to publish, give your post three to five tags that describe your blog’s focus — writing, photography, fiction, parenting, food, cars, movies, sports, whatever. These tags will help others who care about your topics find you in the Reader. Make sure one of the tags is “zerotohero,” so other new bloggers can find you, too.