Laptop Toasts Boy

Doctors in the UK have reported a peculiar case in the journal BMJ Case Reports, revealing how a boy's laptop may have caused a rash on his skin over an extended period. According to a story by Ars Technica, the boy initially visited an emergency department with reddish markings on his abdomen in a lace-like pattern. Initially, nurses thought the markings were "spontaneous bruising," but they did not find any skin abnormalities elsewhere on his body or indications of pain. The boy also had no prior history of trauma or illnesses that could explain the markings.

Upon conducting a chest x-ray, doctors discovered an unusual buildup in the boy's lung, though its significance remained unclear. After questioning the boy, they found no signs of a traumatic injury, even after conducting a CT scan. The boy was discharged with antibiotics for a suspected lung infection. However, several weeks later, the rash had worsened, with parts of his abdomen turning pinkish and displaying clear signs of skin breakdown, complete with mottled patches of dark brown.

This led the doctors to suspect that the boy had experienced heat damage. When they asked the boy about potential heat sources, none were found. Intriguingly, during further questioning, the boy mentioned that he homeschooled and spent long hours using his laptop, sometimes for up to eight hours a day, often while charging. He typically rested the laptop on his torso while lying down. This crucial piece of information allowed for a diagnosis of erythema ab igne (EAI), also known as "toasted skin syndrome."

EAI is caused by repeated, close exposure to low heat, which gradually damages the skin over time. While it is often associated with heat pads and space heaters, a warm laptop can also cause it. The condition results in a distinctive lace-like rash, which explained the boy's symptoms. EAI is benign, and in most cases, the rash disappears once exposure to the heat source is stopped, taking weeks to months to heal.

Once properly diagnosed, the boy's rash was addressed, and he returned several months later to confirm that he had fully recovered. Now that he's healthy, the boy may consider studying at a desk instead of resting his laptop on his body.