What is oral Kaposi sarcoma?
Kaposi sarcoma (KS) is a type of cancer in which patches of abnormal tissue grow under the skin or mucous membranes in the mouth, nose, and anus. The cancer can also involve the lungs, GI tract, and other organs. Kaposi sarcoma tumors usually manifest as bluish-red or purple bumps.
Is HIV associated with Kaposi sarcoma?
HIV is an important cofactor in Kaposi sarcoma pathogenesis, and widespread use of antiretroviral therapy has reduced Kaposi sarcoma incidence. However, Kaposi sarcoma remains the second most frequent tumor arising in HIV-infected patients in the United States and is particularly common in sub-Saharan Africa.
How does HIV cause Kaposi sarcoma?
People infected with human immunodeficiency virus (HIV) — the virus that causes AIDS — have the highest risk of Kaposi’s sarcoma. The immune system damage caused by HIV allows cells harboring HHV-8 to multiply. Through unknown mechanisms, the characteristic lesions form.
Which virus is associated with Kaposi sarcoma?
Kaposi sarcoma (KS) is caused by infection with a virus called the Kaposi sarcoma–associated herpesvirus (KSHV), also known as human herpesvirus 8 (HHV8).
How do you get oral melanoma?
Oral melanoma is a rare cancer of the oral mucosa. As it is uncommon, the causes and risk factors are mainly unknown. However, it seems that alcohol and tobacco smoke play a role in developing the disease. Surgical excision of the site is the primary treatment of oral melanoma.
What are the 4 types of Kaposi’s sarcoma?
There are 4 main types of Kaposi’s sarcoma, and each type is treated in a different way.
- HIV-related Kaposi’s sarcoma. Kaposi’s sarcoma is one of the main types of cancer to affect people with HIV.
- Classic Kaposi’s sarcoma.
- Transplant Kaposi’s sarcoma.
- Endemic or African Kaposi’s sarcoma.
Which part of the body is the origin of Kaposi sarcoma?
Kaposi sarcoma generally develops in tissue located below the skin’s surface or in the lining of the mouth, nose, or anus. Areas where tissues have abnormal changes are known as Kaposi sarcoma lesions. These lesions usually appear on the skin as raised blotches or nodules.
What causes oral Melanoacanthoma?
The cause of melanoacanthoma is unknown, but most instances appear to represent a benign neoplasm. Irritation or trauma to the skin may cause some cutaneous melanoacanthomas, especially on the lips. Trauma and irritation of the oral mucosa are believed to cause oral melanoacanthoma.
