5-Inch-Long ‘Dragon’s Horn’ Grows from Man’s Back

Post 8784

5-Inch-Long ‘Dragon’s Horn’ Grows from Man’s Back

By Mindy Weisberger – Senior Writer 4 days ago


The enormous growth began as a lesion that steadily expanded over several years.

A hardened skin growth on a man's back

After doctors removed the horny growth, they found that it was cancerous.
(Image: © BMJ Case Reports 2019)

A brownish-yellow, hardened skin growth on a man’s back grew to such massive proportions that it resembled a giant dragon’s horn by the time surgeons finally removed it.
The so-called horn started out humbly as a rough, scaly lesion that first appeared in the middle of a 50-year-old man’s back years ago, according to findings published online in the December 2019 issue of the journal BMJ Case Reports.

Over the next three years, the patch of toughened skin grew progressively bigger. Eventually, it formed a thick, curved, horn-like structure that extended nearly to the man’s waist; at the time of its removal, the growth measured 5.5 inches (140 millimeters) long and over 2 inches (60 mm) wide, reaching just over 2 inches (55 mm) thick.

Conical “horns” such as these, also known as cutaneous horns, consist of compacted keratin and are most commonly found in patients from the ages of 60 to 70 years old, according to the dermatology website DermNet NZ. While cutaneous horns can form anywhere on the body, they typically appear in places that are exposed to the sun, such as the head and ears, the backs of hands, and the forearms.
Cutaneous horns are generally small, but some — such as the recently excised back horn — can reach astonishing proportions. One famous example, preserved and exhibited in The Mütter Museum of The College of Physicians of Philadelphia, measures approximately 8 inches (20 centimeters) long and was removed from a 70-year-old woman and donated to the museum in the 1940s.
Another human horn in The Mütter Museum’s collection is displayed on a wax figure that was sculpted from a living model. This horn belonged to a 19th-century French woman known as Madame Dimanche, and the structure measured nearly 10 inches (25 cm) long.

Cancer link
Horn-like growths are often associated with skin cancer, and in nearly 16% of those cases, the cancer is malignant, according to the case report. In the current case, after surgeons removed the growth, they closed the wound with a skin graft from the man’s thigh. When they examined the mass, they identified squamous cell carcinoma, a type of skin cancer caused by the runaway growth of cells that make up the epidermis, the skin’s outermost layer.
While the patient didn’t have a family history of skin cancer or a personal history of excessive sun exposure, he had fair skin and was a smoker, placing him in a higher-risk group for developing a malignant growth, according to the report.
The horn likely grew to be as big as it did only because its owner neglected to treat it for several years, even though he lived “in a developed country with access to free health care,” the authors remarked. The surgery to remove the man’s horn took place in the United Kingdom.
“This highlights that, despite current public skin-cancer awareness and rigorous health care measures, cases like this can still arise and slip through the net,” the authors wrote.


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