Question 1

What is Kaposi Sarcoma and what causes it?

Accepted Answer

Kaposi Sarcoma (KS) is a type of cancer that forms in the lining of blood and lymph vessels. It causes abnormal tissue growths or lesions that can appear on the skin, in the mouth, or in internal organs. It’s caused by infection with human herpesvirus 8 (HHV-8), especially in people with weakened immune systems.

Question 2

Which virus causes Kaposi Sarcoma, and how is it linked to HIV?

Accepted Answer

Kaposi Sarcoma is caused by human herpesvirus 8 (HHV-8), also known as Kaposi Sarcoma-associated herpesvirus (KSHV). In people with HIV, immune suppression allows the virus to multiply, increasing the risk of KS. It is considered an AIDS-defining illness.

Question 3

Are Kaposi Sarcoma lesions contagious or infectious?

Accepted Answer

The lesions are not contagious, but HHV?8 can be transmitted via saliva, blood, or sexual contact. However, development of KS usually requires both HHV?8 infection and immune suppression. Source

Question 4

Who is at risk for developing Kaposi Sarcoma?

Accepted Answer

People at higher risk include those with HIV/AIDS, organ transplant recipients on immunosuppressants, and older men of Mediterranean, Eastern European, or sub?Saharan African descent where HHV?8 prevalence is higher. Source

Question 5

Can Kaposi Sarcoma occur without HIV?

Accepted Answer

Yes. While KS is strongly associated with HIV, it can also occur in individuals with other forms of immune suppression or, rarely, in people with no known immune issues. This is called “classic” Kaposi Sarcoma and tends to progress more slowly.

Question 6

What does Kaposi Sarcoma look like and where does it usually appear?

Accepted Answer

KS lesions often appear as red, purple, or brown patches or nodules on the skin, especially on the legs, feet, or face. They can also develop in the mouth, lymph nodes, lungs, or digestive tract. Lesions may be flat or raised and can be painless or tender.

Question 7

How is Kaposi Sarcoma diagnosed?

Accepted Answer

Diagnosis typically involves a physical exam and biopsy of a lesion. Additional tests like blood work, imaging, or endoscopy may be used to check for internal involvement. Diagnosis is confirmed by identifying cancerous cells and HHV-8 infection in tissue samples.

Question 8

How fast does Kaposi Sarcoma spread and is it life-threatening?

Accepted Answer

The progression of KS varies. In people with HIV, KS can spread quickly if not treated. In classic KS (not linked to HIV), it tends to progress slowly. While not always life-threatening, KS can become serious if it affects internal organs or causes severe immune complications.

Question 9

How is Kaposi Sarcoma treated?

Accepted Answer

Treatment depends on disease type and severity. For HIV-associated KS, starting or optimizing antiretroviral therapy (ART) is essential and may cause lesion regression. Local or systemic therapies (e.g. chemotherapy, radiation, surgical removal) may be needed for extensive disease. Source

Question 10

What are the treatment options for Kaposi Sarcoma in people with HIV?

Accepted Answer

For people with HIV, starting or optimizing antiretroviral therapy (ART) is essential and may shrink lesions on its own. Additional treatments like chemotherapy or local therapies may be used for more aggressive cases or widespread lesions.

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