'Something inside is tightening': How a doctor cracked the case of a rare disease in a 42-year-old man

Inflammatory diseases affecting the connective tissue around muscles can quietly turn everyday movements into painful tasks. A rare condition called Eosinophilic Fasciitis does exactly that, and is often missed because of how uncommon it is. Writing in TOI, Dr Lata Bichile, consultant rheumatologist at the Centre for Arthritic and Rheumatic Diseases Treatment, Mumbai, shared a real-life case that highlights why awareness and early diagnosis matter.

A Patient With Pain, Stiffness and No Obvious Clues

According to TOI, a 42-year-old engineer, identified as MK, visited Dr Bichile’s OPD in August 2023 with his wife. He had been dealing with swelling and stiffness in his right forearm for four months. The pain shot from his wrist to his fingers, making simple actions like bending his elbow or turning his wrist difficult.

Over time, similar stiffness and pain appeared in both thighs and his left upper arm. Sitting down, standing up and even lifting his arm became painful. “It feels as if something inside is tightening,” he told the doctor. As reported in TOI, MK had no fever, weight loss, breathing issues, cough, colour changes in his fingers or known allergies, an important detail in narrowing down the diagnosis.

Subtle Signs Pointed to a Rare Condition

Dr Bichile wrote in TOI that while MK’s hands and feet looked completely normal, the skin over his forearm and thighs appeared slightly puckered, as if tethered down. His right elbow movement was restricted, and his median nerve seemed affected, causing finger numbness. However, muscle strength, reflexes and other organ systems were normal.

This unusual combination made Dr Bichile suspect Eosinophilic Fasciitis, also known as Shulman syndrome, a rare inflammatory disease affecting the fascia, the thin connective tissue surrounding muscles. As per TOI, only a few hundred cases have been reported worldwide since the condition was first described in 1974.

Tests, MRI and a Clear Diagnosis

Blood tests showed high inflammation markers (ESR and CRP) and very high eosinophil levels, a type of white blood cell linked to inflammation. Muscle enzyme levels were normal, helping rule out muscle disease. Autoimmune tests including ANA, Anti-Scl70, Anti-centromere and ANCA were all negative, excluding other conditions such as systemic sclerosis, Dr Bichile noted in TOI.

Since MK declined a biopsy, an MRI of the thighs was ordered. Imaging revealed inflammation and fluid along the fascial layers, with thickening but no muscle damage, a classic MRI finding of Eosinophilic Fasciitis. “It was rare, but treatable, and we had caught it early,” Dr Bichile wrote in TOI.

Early Treatment Made All the Difference

As per TOI, MK was started on high-dose steroids, carefully adjusted to his body weight, along with a steroid-sparing medication for long-term safety. Physiotherapy was added to support recovery, and close follow-ups were scheduled.

Three months later, the change was remarkable. His elbow movement returned to normal, thigh stiffness eased, shoulder pain disappeared and skin tightening reduced significantly. He was able to continue working without interruption. Dr Bichile credited his consistency, trust in treatment and calm courage for his recovery.

A Reminder That Rare Does Not Mean Untreatable

In her TOI report, Dr Bichile shared that in a medical career spanning nearly 35 years, she has seen only two cases of Eosinophilic Fasciitis. “But every rare patient reinforces the importance of awareness, early diagnosis and trust in treatment,” she wrote.

This case, reported in TOI, shows how rare inflammatory diseases can disguise themselves as routine aches and pains. Sometimes, success in medicine is not dramatic, it is simply a pain-free walk, a restored elbow bend, or a patient returning to work feeling whole again.