Rare Cancer Diagnosis for Entertainer Thomas Gottschalk: Understanding Epithelioid Angiosarcoma
A rare and aggressive cancer, epithelioid angiosarcoma, has been publicly revealed as the diagnosis for German entertainer Thomas Gottschalk. The 75-year-old has already undergone two surgeries and continues to receive treatment. This diagnosis shines a light on a particularly uncommon malignancy, affecting a limited number of individuals, especially in Austria, where estimates suggest between ten and 20 cases.
What is Epithelioid Angiosarcoma?
Epithelioid angiosarcoma is a malignant tumor that grows rapidly and originates from the cells lining blood vessels. Occurring in roughly one to two people per million inhabitants annually, the term “angio” refers to vessels, while “sarcoma” denotes a soft tissue tumor. While angiosarcomas can develop anywhere in the body, they are frequently found in the scalp, manifesting as red or dark red spots, as well as in the heart, abdomen, and limbs.
According to a specialist from the Clinical Department of Oncology at the University Clinic for Internal Medicine, the epithelioid variant – a subtype – is more prevalent in men and typically affects deeper soft tissues like the abdomen or urogenital region.
Treatment and Prognosis
When angiosarcoma is localized and hasn’t spread, treatment focuses on a curative approach, aiming for complete eradication of the cancer. “I know many patients who have lived for years and decades after localized angiosarcoma,” one oncologist stated. However, metastatic angiosarcoma – cancer that has spread – is treated with the goal of managing the disease, though some patients have lived for up to ten years even with metastasis.
Due to the rarity of this cancer, predicting recovery rates is challenging. Standard risk calculations used for more common cancers like breast or lung cancer are not applicable. Angiosarcomas located in the abdominal cavity often present late in their development, contributing to a less favorable prognosis.
“There is no typical symptom,” the oncologist explained, emphasizing that symptoms vary depending on the tumor’s location. Pain may arise if the cancer presses on organs like the bladder or ureter, potentially accompanied by blood in the urine. Cardiac angiosarcomas can cause irregular heartbeats, while those on the scalp or limbs may present as dark red spots. Advanced tumors can constrict blood vessels, leading to severe and difficult-to-treat circulatory pain, known as ischemia.
Therapeutic Approaches
Treatment strategies depend on the stage of the cancer. Localized angiosarcomas are typically “radically removed,” meaning the tumor and surrounding tissue are excised with a margin of healthy tissue to ensure complete removal. This surgery may be preceded by systemic treatments like chemotherapy, tyrosine kinase inhibitors (targeted therapies blocking cancer cell signaling), or immunotherapy to shrink the tumor. Immunotherapy utilizes artificially produced antibodies to enhance the immune system’s ability to recognize and destroy cancer cells. These therapies can also be administered after successful surgery.
In cases of metastatic angiosarcoma, chemotherapy, tyrosine kinase inhibitors, or immunotherapy are essential, with surgery considered as a potential option followed by continued systemic therapies. Radiation therapy also remains a viable treatment modality.
Early Detection and Screening
Unfortunately, there are currently no screening tests or tumor markers available for the early detection of epithelioid angiosarcoma. Unlike prostate cancer, which utilizes PSA as a marker, or ovarian cancer, which uses CA 125, this rare cancer lacks a comparable diagnostic tool. As a result, deep-seated angiosarcomas are often discovered only when symptoms emerge, typically at a later stage.
