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Kaposi sarcoma is a malignant neoplasm that arises from the endothelial lining of blood vessels and/or lymphatic vessels, and the malignant portion consists of lesions that can arise in the skin. These lesions may be located on the face, arms, and legs and may appear magenta, graphite, or tan in colour.
Lesions may be found in the genital area or in the oromucosal region of the mouth. In cases of advanced Kaposi's sarcoma, lesions may also be present in the gastrointestinal tract and/or the lungs.
The etiology of Kaposi's Sarcoma is the presence of human herpesvirus-8 (HHV-8) infection. In immunocompetent patients, HHV-8 is usually an asymptomatic infection that is kept in check by host immunity; however, in an immunocompromised individual, this infection has the potential to progress to Kaposi's sarcoma.
What Is Kaposi Sarcoma?
Kaposi sarcoma is a cancer that grows in the lining of blood and lymph vessels. It shows up as clusters of cells, or lesions, which you might spot on your skin, inside your mouth, in lymph nodes, or deep in organs like the lungs, liver, and digestive system. These lesions don’t usually hurt and can be pink, red, purple, or brown. Sometimes they’re flat, other times raised, and they often just look like bruises.
Even though people call it a sarcoma, KS isn’t one in the usual sense. It gets lumped into that category because it starts in blood vessel cells. What really sets KS apart is that it’s always triggered by infection with human herpesvirus 8 (or HHV-8), often called Kaposi sarcoma-associated herpesvirus. Most folks with this virus never get KS. It’s much more common when someone has HHV-8, and their immune system isn’t working well.
KS used to be pretty rare, but cases shot up when AIDS became widespread. Now, thanks to powerful HIV treatments like highly active antiretroviral therapy, people with HIV-related KS are doing a lot better.
Kaposi sarcoma is one disease that has four dominant forms that afflict various populations of people, and are also treated differently.
Classic (Mediterranean) Kaposi Sarcoma.
It is a rare kind that occurs in older men, usually of Mediterranean, Eastern European or Middle Eastern origin. It has no association with HIV and is brought about by the HHV-8 virus in individuals with an age-induced natural deterioration of the immune system. This form is typically slow and manifests itself as lesions on the lower legs and feet.
Kaposi Sarcoma (African) is endemic.
It is widespread in some areas of equatorial Africa. It may cause children and young adults, and is usually more violent than the classic type. It is not linked to HIV.
Kaposi Sarcoma of epidemic (AIDS-related) origin.
This form is the most typically occurring type of Kaposi sarcoma. It is found in individuals who have a defective immune system because of advanced HIV infection. KS can be caused in these individuals by the HHV-8 virus that is common in the general population. This form of KS is becoming rare with modern treatments of HIV.
Iatrogenic (Transplant-related) Kaposi Sarcoma.
It is a kind of type that occurs among patients who are taking immunosuppressant medication following an organ transplant. KS can develop in the host in case of the suppression of the immune system by the HHV-8 virus that may have been latent in the body of the patient. The lesions of the KS tend to shrink or fade away when the immunosuppressant drug can be discontinued or decreased.
Kaposi sarcoma treatment is very individualised and depends on the patient's general health, the kind of KS, and the severity of the disease. Dealing with the underlying problem is a crucial part of treatment.
Medical Treatment (Antiretroviral Therapy and Chemotherapy)
Highly Active Antiretroviral Therapy (HAART): The primary treatment for HIV-associated KS is controlling the HIV virus. Therefore, in the majority of cases, initiating or enhancing a patient's ART may be sufficient for the KS lesions to reduce or vanish without any further intervention.
Chemotherapy: This therapy employs strong drugs to eliminate cancer cells. It is a treatment option for KS that is widespread or rapidly growing, particularly when the lesions are causing pain or other issues.
Targeted Therapy and Immunotherapy: These are innovative types of treatments that are being studied for their effectiveness in treating KS.
Local Treatments
There are a few local methods that can be used to eliminate cancer cells if only one or a few lesions are present. These local procedures include:
Cryosurgery: A small tool freezes and destroys lesions through the application of liquid nitrogen.
Surgical Excision: This procedure removes the lesion through an incision that is only big enough to allow for complete removal.
Radiation Therapy: Radiation can shrink or eliminate painful lesions or visible skin lesions. Radiation can also be used to treat AIDS-related KS in the mouth or in areas that have no surgical treatment option available.
Intra-lesional Chemotherapy: Chemotherapy drugs can be injected directly into the lesion.
The typical cost of treating Kaposi sarcoma in India is between $3,000 and $7,000, depending on the patient's condition, the type of treatment, and the hospital or location you choose.
|
Treatment Type |
Cost in USD |
|
Overall Treatment (Complete) |
$3,000 – $7,000 |
|
Radiation Therapy (per session) |
$24 – $60 |
|
Chemotherapy |
$600 – $2,400 |
|
Surgery (Local excision) |
$1,200 – $3,600 |
|
Immunotherapy |
$1,800 – $4,800 |
|
Targeted Therapy |
$1,800 – $4,800 |
The appearance of lesions tends to produce the symptoms of Kaposi sarcoma. The symptoms may change according to the location of the cancer.
Common Early Signs:
Advanced Symptoms:
Other mechanisms might manifest themselves as the cancer advances and invades other organs within his body:
Several risk factors are associated with Kaposi sarcoma, which are:
Age: Mostly the individuals between the age between 40 and 70 are affected by the Kaposi sarcoma.
Ethnicity: The risk of KS is higher if the person is of Mediterranean, Southwest Asian, Eastern European, or Ashkenazi Jewish origin.
Immune deficiency: The likelihood of developing KS increases if the immune system is weak. This situation might be caused by the use of immunosuppressants or the presence of diseases like HIV/AIDS.
Location: There is a higher risk of endemic KS near the equator in Africa.
Sex: Male gender is more susceptible to the development of Kaposi sarcoma.
Sexual behaviour: Having unprotected intercourse can put you at risk of contracting HHV-8 and HIV. Usually, these viruses are transmitted through bodily fluids.
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