Cancer Ribbons - O | Personalized Cause
Cancer ribbons colors and meanings for more than 100 types of cancer. Cancer ribbons page includes a brief explanation of cancer type beginning with the letter O.
Cancer Ribbons / Cancer Awareness Ribbons
There are more than 100 types of cancer. Types of cancer are usually named for the organs or tissues where the cancers form, but they also may be described by the type of cell that formed them.
Oral Cancer, Lip and Oral Cavity Cancer and Oropharyngeal Cancer (Head and Neck Cancer)
Head and neck cancers include cancers in the larynx, throat, lips, mouth, nose, and salivary glands. Tobacco use, heavy alcohol use, and infection with human papillomavirus (HPV) increase the risk of head and neck cancers.
Lip and oral cavity cancer is a disease in which malignant (cancer) cells form in the lips or mouth. Most lip and oral cavity cancers start in squamous cells, the thin, flat cells that line the lips and oral cavity. These are called squamous cell carcinomas. Cancer cells may spread into deeper tissue as the cancer grows. Squamous cell carcinoma usually develops in areas of leukoplakia (white patches of cells that do not rub off). Lip and oral cavity cancer is a type of head and neck cancer.
Osteosarcoma and Malignant Fibrous Histiocytoma of Bone
Bone cancer is rare and includes several types. Some bone cancers, including osteosarcoma and Ewing sarcoma, are seen most often in children and young adults.
Osteosarcoma and malignant fibrous histiocytoma (MFH) of the bone are diseases in which malignant (cancer) cells form in bone. Osteosarcoma usually starts in osteoblasts, which are a type of bone cell that becomes new bone tissue. Osteosarcoma is most common in adolescents. It commonly forms in the ends of the long bones of the body, which include bones of the arms and legs. In children and adolescents, it often forms in the long bones, near the knee. Rarely, osteosarcoma may be found in soft tissue or organs in the chest or abdomen. Osteosarcoma is the most common type of bone cancer.
Malignant fibrous histiocytoma (MFH) of bone is a rare tumor of the bone. It is treated like osteosarcoma. Ewing sarcoma is another kind of bone cancer.
Ovarian cancer is a disease in which malignant (cancer) cells form in the ovary. Ovarian epithelial cancer, fallopian tube cancer, and primary peritoneal cancer form in the same kind of tissue and are treated in the same way. These cancers are often advanced at diagnosis. Less common types of ovarian tumors include ovarian germ cell tumors and ovarian low malignant potential tumors.
Childhood Ovarian Cancer - see Unusual Cancers of Childhood
Ovarian cancer is a disease in which malignant (cancer) cells form in the ovary. The ovaries are a pair of organs in the female reproductive system. They are located in the pelvis, one on each side of the uterus (the hollow, pear-shaped organ where a fetus grows). Each ovary is about the size and shape of an almond. The ovaries produce eggs and female hormones (chemicals that control the way certain cells or organs function). Most ovarian tumors in children are benign (not cancer). They occur most often in females aged 15 to 19 years.
There are several types of malignant ovarian tumors:
Germ cell tumors
Tumors that start in egg cells in females. These are the most common ovarian tumors in girls.
Tumors that start in the tissue covering the ovary. These are the second most common ovarian tumors in girls.
Tumors that begin in stromal cells, which make up tissues that surround and support the ovaries. Juvenile granulosa cell tumors and Sertoli-Leydig cell tumors are two types of stromal tumors. Other tumors, such as small cell carcinoma of the ovary, are a very rare tumor.