A 34-year-old Abu Dhabi resident has made a remarkable recovery after doctors identified Adult-Onset Still’s Disease, an extremely rare autoimmune condition that affects only a handful of people worldwide each year. Early diagnosis and treatment at Burjeel Hospital proved crucial in preventing potentially life-threatening complications.
ABU DHABI: What is Adult-Onset Still’s Disease, and why is it so difficult to diagnose? The question has gained attention after doctors in Abu Dhabi successfully identified and treated a rare case of Adult-Onset Still’s Disease in a 34-year-old resident whose unexplained symptoms had baffled medical teams for weeks.
The patient, who had previously enjoyed good health, began experiencing persistent high-grade fever that continued for more than two weeks. Multiple hospital visits and routine investigations failed to identify the cause. Despite blood cultures, infection screening, and other standard diagnostic tests, doctors could not determine why his condition was rapidly worsening.
As the fever persisted, he developed severe joint pain, overwhelming fatigue, inflammation throughout the body, and signs of liver involvement. Although he remained clinically stable, the combination of symptoms raised concerns about a potentially serious underlying illness.
Doctors at Burjeel Hospital launched an extensive investigation led by specialists in internal medicine. Their assessment eventually pointed towards Adult-Onset Still’s Disease, a rare autoimmune disorder estimated to affect only one to four people per million worldwide.
According to Dr. Niyas Khalid, Specialist in Internal Medicine, Adult-Onset Still’s Disease is among the most challenging inflammatory disorders to diagnose because it closely resembles several other serious medical conditions.
The disease often mimics severe infections, autoimmune disorders, liver disease, and even certain cancers. As a result, diagnosis frequently requires ruling out numerous alternative causes before reaching a conclusion.
One of the biggest challenges in this case was the absence of a characteristic skin rash often associated with the disease. Medical experts note that such rashes may be subtle or difficult to detect in individuals with darker skin tones.
What ultimately helped doctors reach the diagnosis was a distinctive combination of prolonged fever, severe inflammation, liver involvement, and exceptionally high ferritin levels. Ferritin, a protein linked to iron storage, can also act as an important marker of inflammation. The patient’s extraordinarily elevated ferritin level served as a critical clue, especially after infectious and autoimmune causes had been excluded.
If left untreated, Adult-Onset Still’s Disease can become dangerous. The immune system becomes overactive and attacks healthy tissues, leading to widespread inflammation. In severe cases, patients may develop organ damage, chronic inflammatory arthritis, liver failure, or a life-threatening immune reaction known as macrophage activation syndrome.
Once the diagnosis was established, doctors immediately started high-dose corticosteroid therapy, the standard treatment for the condition. The response was dramatic. Within 24 hours, the patient’s fever subsided. Within 48 hours, his energy levels improved significantly and joint pain began to ease.
The patient described the experience as life-changing, recalling weeks of physical weakness, emotional exhaustion, and uncertainty before receiving the correct diagnosis.
Although he has recovered well, ongoing monitoring remains essential because Adult-Onset Still’s Disease can return in some cases. Regular follow-up appointments with internal medicine and rheumatology specialists will help ensure long-term stability and early detection of any recurrence.
