Who nasopharyngeal carcinoma classification?

According to the World Health Organization (WHO), NPC is classified into 3 subtypes: Keratinizing squamous cell carcinoma (WHO type 1) Nonkeratinizing squamous cell carcinoma (WHO type 2) Undifferentiated or poorly differentiated carcinoma, including lymphoepithelioma and anaplastic variants (WHO type 3)

What type of cancer is nasopharyngeal cancer?

Nasopharyngeal cancer is a type of head and neck cancer. It starts in the nasopharynx, the upper part of the throat behind the nose and near the base of skull. Cancer starts when cells begin to grow out of control. Cells in nearly any part of the body can become cancer, and can spread to other areas.

What are the 4 major classifications of cancer please describe each category?

Four main types of cancer are:

• Carcinomas. A carcinoma begins in the skin or the tissue that covers the surface of internal organs and glands.
• Sarcomas. A sarcoma begins in the tissues that support and connect the body.
• Leukemias. Leukemia is a cancer of the blood.
• Lymphomas.

What are the 3 classifications for cancer?

The main types of cancer

• carcinoma – this cancer begins in the skin or in tissues that line or cover internal organs.
• sarcoma – this cancer begins in the connective or supportive tissues such as bone, cartilage, fat, muscle or blood vessels.
• leukaemia – this is cancer of the white blood cells.

Is NPC A SCC?

World Health Organisation (WHO) classifies NPC into the following three types, based on their histological appearance: Type I – Keratinising Squamous Cell Carcinoma (SCC) Type II – Non-keratinising Squamous Cell Carcinoma (SCC)

What is Stage 3 nasopharyngeal cancer?

Stage 3 nasopharyngeal cancer means one of the following: The cancer has spread to nearby bones and air cavities (sinuses). It might also have spread to lymph nodes on one or both sides of the neck, or behind the throat, but not anywhere else. The affected lymph nodes are not more than 6 cm across.

Is NPC squamous cell carcinoma?

Nasopharyngeal carcinoma (NPC) is the most common primary malignancy of the nasopharynx. The WHO divides NPC into three subtypes: Type 1 (I) is squamous cell carcinoma; Type 2a (II) is keratinizing undifferentiated carcinoma; Type 2b (III) is nonkeratinizing undifferentiated carcinoma.

What are the 5 categories of cancer?

Five major categories of cancer, based on their histological characteristics, are: carcinoma; sarcoma; myeloma; leukemia; and lymphoma. In addition, there are also some mixed types.

What are the 6 categories of cancer?

Based on tissue types cancers may be classified into six major categories:

• Carcinoma. This type of cancer originates from the epithelial layer of cells that form the lining of external parts of the body or the internal linings of organs within the body.
• Sarcoma.
• Myeloma.
• Leukemia.
• Lymphoma.
• Mixed types.

What are the 5 main types of cancer?

What are the 5 types of cancer?

• Carcinoma. This type of cancer affects organs and glands, such as the lungs, breasts, pancreas and skin.
• Sarcoma. This cancer affects soft or connective tissues, such as muscle, fat, bone, cartilage or blood vessels.
• Melanoma.
• Lymphoma.
• Leukemia.

What is metastatic nasopharyngeal carcinoma?

Cancer that spreads to other areas of the body. Nasopharyngeal carcinoma frequently spreads (metastasizes) beyond the nasopharynx. Most people with nasopharyngeal carcinoma have regional metastases. That means cancer cells from the initial tumor have migrated to nearby areas, such as lymph nodes in the neck.

What is NPC virus?

Nasopharyngeal carcinoma (NPC) is consistently associated with Epstein-Barr virus (EBV) infection in regions in which it is endemic, including Southern China and Southeast Asia. The high mortality rates of NPC patients with advanced and recurrent disease highlight the urgent need for effective treatments.

What is fossa of Rosenmuller?

The fossa of Rosenmüller is a bilateral projection of the nasopharynx just below the skull base. It is also called the lateral pharyngeal recess or simply the pharyngeal recess. The fossa is covered by nasopharyngeal mucosa and is the most common site of origin of nasopharyngeal carcinoma (NPC).

What is nasopharyngeal cancer stage 4?

Stage IV nasopharyngeal cancer is divided into stages IVA and IVB. In stage IVA, (1) cancer has spread to the brain, the cranial nerves, the hypopharynx, the salivary gland in the front of the ear, the bone around the eye, and/or the soft tissues of the jaw.

What is Stage 2 nasopharyngeal?

Stage 2. Stage 2 nasopharyngeal cancer means one of the following: No cancer is seen in the nasopharynx, or the cancer is within the nasopharynx and may have grown into the nasal cavity or oropharynx. There is cancer in the lymph nodes on one side of the neck, or behind the throat on one or both sides of the neck.

What is nasopharyngeal carcinoma NPC?

Nasopharyngeal carcinoma (also known as NPC) is a rare tumor of the head and neck which originates in the nasopharynx. The nasopharynx is located at the very back of the nose near the Eustachian tubes (Figure).

Is there a new who classification system for nasopharynx tumors?

This article has been cited by other articles in PMC. The current WHO classification system for tumors of the head and neck has made few changes from the previous edition with regards to tumors of the nasopharynx.

What kind of cancer is nasopharyngeal cancer?

About nasopharyngeal cancer. Nasopharyngeal cancer may also be called nasopharyngeal carcinoma or NPC. It is 1 of 5 main types of cancer in the head and neck region, a grouping called head and neck cancer. NPC is a disease of the nasopharynx, which is the air passageway at the upper part of the pharynx, or throat, behind the nose.

What is nasopharyngeal carcinoma (SCC)?

In spite of the relatively non-specific nature of the appellation, “nasopharyngeal carcinoma” remains the diagnostic term of choice for all squamous cell carcinomas (SCCs) of the nasopharynx. The WHO then subtypes these cancers as non-keratinizing and keratinizing types, as well as basaloid SCC.

What is the prevalence of nasopharyngeal malignancies?

The tumors are very rare and represent less than 1% of nasopharyngeal malignancies. They occur over a wide age range (reported ages: 9–64 years), equally in both sexes, and can involve any part of the nasopharynx.