Warning has been issued by scientists regarding a lesser-known form of skin cancer that is more lethal than melanoma and is more prevalent in WA than anywhere globally.
Merkel cell carcinoma, although rare, exhibits a higher level of aggressiveness than melanoma, the skin cancer recognized as the deadliest.
A study conducted in WA and published in an international dermatology journal indicates a grim survival outlook, revealing that only one-third of patients survive five years post-treatment, whereas 90 percent of melanoma patients do.
Utilizing data from the State’s cancer registry, scientists at the WA Institute for Medical Research tracked trends in skin cancer, discovering that WA has the highest reported rates globally.
This research marks the first comprehensive investigation of the cancer in Australia, even though the country holds the highest rate of sun-related cancers worldwide.
In contrast to melanoma lesions that usually appear dark and irregular, Merkel cell carcinoma typically presents as a raised pink or flesh-toned bump on the skin.
Lin Fritschi, a researcher leading the epidemiology group at WAIMR, noted that like other skin cancers, Merkel cell carcinoma seems to result from sun exposure.
Each year in WA, the cancer is diagnosed in approximately one individual out of every 100,000, juxtaposed with melanoma rates of 30 to 40 individuals per 100,000.
Professor Fritschi mentioned that the rate of Merkel cell carcinoma is nearly double that observed in other regions.
It is frequently located in sun-exposed regions such as the face and scalp, with risks escalating with age.
“Even when patients have the tumor excised, recurrence is common,” she remarked.
“This form of skin cancer appears challenging to treat, and it’s possible that patients are not diagnosed as promptly as with melanoma, which is more familiar and conspicuous. This cancer doesn’t have an obviously aggressive appearance.”
Terry Slevin, chairman of Cancer Council Australia’s national skin cancer committee, highlighted that the findings underscore the importance of sun safety measures.
“The study implies that rates here rank among the highest in the world, aligning with results for other skin cancers and melanoma,” he stated.
“While many believe our sun safety campaigns are making a significant impact, the statistics indicate that skin cancer cases continue to rise, serving as a stark reminder.”
by David Livingstone
