# Kaposi's Sarcoma - Category: chronic - Review status: reviewed (every claim checked against a document named on this page) - Sources: ICPC-3 (WONCA International Classification of Primary Care, 3rd edition) class SD25.01 - condition scope only, no dose · Kaposi Sarcoma - StatPearls - NCBI Bookshelf - https://www.ncbi.nlm.nih.gov/books/NBK534839/ · No dose - referral pathway, no medicine given in primary care - Verified date: 2026-08 ## Verified against - No dose - referral pathway, no medicine given in primary care - Kaposi's Sarcoma - disease-level clinical article (kaposis-sarcoma-full.txt) - Kaposi's Sarcoma - disease-level clinical article (kaposis-sarcoma-clinical.txt) ## Treatment metadata - No drug therapy in primary care (Referral & Advice) ## Complete treatment card ```text KAPOSI'S SARCOMA Sources: ICPC-3 (WONCA International Classification of Primary Care, 3rd edition) class SD25.01 - condition scope only, no dose · Kaposi Sarcoma - StatPearls - NCBI Bookshelf - https://www.ncbi.nlm.nih.gov/books/NBK534839/ · No dose - referral pathway, no medicine given in primary care Review status: REVIEWED against No dose - referral pathway, no medicine given in primary care, Kaposi's Sarcoma - disease-level clinical article (kaposis-sarcoma- full.txt), Kaposi's Sarcoma - disease-level clinical article (kaposis-sarcoma-clinical.txt) (2026-08) IS IT THIS? - reference only, to read alongside your own examination SYMPTOMS - what the patient reports (3) - The best-known form is in people whose immunity is suppressed, by AIDS or by the drugs given after an organ transplant - The cause is human herpesvirus 8, also called the Kaposi sarcoma herpesvirus - Red flag: the course differs by form, from indolent to aggressive and fatal in the anaplastic types SIGNS - what you find (2) - Skin exam looks for purplish lesions or enlarged lymph nodes as possible Kaposi sarcoma [lymphadenopathy] - Mucocutaneous surfaces get particular attention since they're a common site for lesions to appear TESTS (4) - Definitive diagnosis needs a biopsy or excision of the suspicious area - Pathology shows the characteristic spindle-cell vascular proliferation within the dermis - Positive LANA1 staining, a marker for HHV-8, on immunohistochemistry helps separate Kaposi sarcoma from look-alike lesions - Immunostains for this tumor also come back positive for BCL-2, CD34, PECAM-1, factor VIII, D2-40, and VEGFR-3 IF NOT THIS - what else fits (6) - On histology, Kaposi sarcoma's spindle-cell vascular pattern overlaps with granuloma annulare, spindle cell or tufted hemangioma, kaposiform hemangioendothelioma, angiosarcoma, and several other spindle-cell tumors - On mucocutaneous surfaces, Kaposi sarcoma must be distinguished from nevi, pyogenic granuloma, bacillary angiomatosis, hemangioma, angiosarcoma, and melanoma - The classic form sits on the legs of elderly men of Mediterranean or Eastern European descent - The endemic African form is in children, with lymph nodes enlarged all over the body - The HIV-related form is in a patient not taking antiretroviral therapy, spread through skin and internal organs - The iatrogenic form is in a patient suppressed by treatment, spread the same way Source StatPearls "Kaposi Sarcoma" - disease-level clinical article Status traced to the source above 1. NO DRUG THERAPY IN PRIMARY CARE (REFERRAL & ADVICE) [1st line] Adult A vascular malignancy presenting as purple-red patches, plaques, or nodules on the skin, strongly associated with HIV/AIDS and immunosuppression; the GP's role is recognising the lesion, testing for HIV, and referring to oncology/dermatology for biopsy and specialist treatment. - Refer, with advice Peds Children follow the same pathway: recognise and refer. No primary-care medicine is implied. Source No dose - referral pathway, no medicine given in primary care Why A vascular malignancy presenting as purple-red patches, plaques, or nodules on the skin, strongly associated with HIV/AIDS and immunosuppression; the GP's role is recognising the lesion, testing for HIV, and referring to oncology/dermatology for biopsy and specialist treatment. Caution Undiagnosed HIV infection must be considered and tested for in any patient with suspicious lesions. No medicine is prescribed for this in primary care - this entry is for recognition and referral. Anything given is decided by the service it is referred to. RED FLAG - Pulmonary involvement in Kaposi sarcoma causes respiratory distress and is a major cause of death. RED FLAG - Visceral organ involvement, particularly in the lungs, carries a worse prognosis. RED FLAG - Rapidly spreading lesions or involvement of internal organs indicate advanced disease. Prices are indicative (dataset snapshot 2026-06); verify with the pharmacy. ``` --- Dawaa Reference is a reference for prescribers, not a medical device, and does not replace clinical judgement. [Privacy policy](/privacy)