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Systemic mastocytosis presenting as osteoporosis--a case report
R Mathew1, V Dhillon, P Shepherd
1Department of Rheumatology, Western General Hospital, Edinburgh, Scotland, UK. drrengi@yahoo.com
Clinical Rheumatology
|March 24, 2009
Summary
Systemic mastocytosis, a rare disorder of mast cells, can cause secondary osteoporosis. This case highlights osteoporotic vertebral fractures as a rare initial sign of systemic mastocytosis.
Area of Science:
- Hematology
- Endocrinology
- Bone Biology
Background:
- Mastocytosis is a clonal disorder involving mast cell proliferation and accumulation in organs, primarily the skin.
- Systemic mastocytosis (SM) is an uncommon cause of secondary osteoporosis, implicated in approximately 1.25% of cases.
- The pathogenesis of osteoporosis in SM is multifactorial, involving enhanced osteoclastic activity and mast cell mediators.
Observation:
- A middle-aged male presented with osteoporotic vertebral fractures.
- These fractures were identified as a rare presenting manifestation of systemic mastocytosis.
Findings:
- Systemic mastocytosis can manifest initially with osteoporotic vertebral fractures.
- This case underscores the importance of considering SM in patients with idiopathic osteoporosis.
Implications:
- Early recognition of systemic mastocytosis is crucial for managing secondary osteoporosis.
- Investigating mastocytosis in patients with unexplained osteoporosis may lead to earlier diagnosis and treatment.
- Understanding the link between mast cell mediators and bone metabolism can inform therapeutic strategies.
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