HFE-related hemochromatosis: an update for the rheumatologist

Area of Science:

• Medicine
• Genetics
• Rheumatology

Background:

• Hereditary hemochromatosis (HH) is a common genetic disorder causing iron overload, particularly in Caucasian populations.
• The C282Y homozygous mutation in the HFE gene is the most frequent cause of HH.
• While classic symptoms like skin hyperpigmentation and diabetes are less common, musculoskeletal issues are prevalent.

Purpose of the Study:

• To describe the clinical and radiographic features of musculoskeletal involvement in HFE-related hemochromatosis.
• To highlight the persistence and potential worsening of arthropathy despite phlebotomy treatment.
• To emphasize the need for research into the pathogenesis and treatment of HH-associated joint disease.

Main Methods:

• Review of clinical presentations and radiographic findings in patients with HFE-related hemochromatosis.
• Analysis of the impact of phlebotomy on organ manifestations, including musculoskeletal symptoms.
• Assessment of the risk of severe arthritis and need for joint replacement surgery.

Main Results:

• Musculoskeletal symptoms are common in HFE-related hemochromatosis, affecting joints like the metacarpophalangeal, wrist, hip, and ankle.
• Symptoms mimic osteoarthritis, pseudogout, and rheumatoid arthritis, with radiographic evidence of degenerative changes and chondrocalcinosis in up to 50% of patients.
• Joint symptoms often persist or worsen with phlebotomy, increasing the risk of severe arthritis requiring joint replacement.

Conclusions:

• HFE-related hemochromatosis frequently leads to significant arthropathy.
• Musculoskeletal symptoms in HH are often refractory to standard treatment and can necessitate surgical intervention.
• Further research is crucial to understand the pathogenesis of HH arthropathy and develop effective treatments.