Dr. Janssen provides care in the following areas of Rheumatology:
- Ankylosing Spondylitis
- Antiphospholipid Antibody Syndrome
- Enteropathic Arthritis (from Crohn’s and Ulcerative Colitis)
- Giant Cell Arteritis/Temporal Arteritis
- Gout and Pseudogout
- Lupus
- Mixed Connective Tissue Disease
- Myositis
- Osteoarthritis
- Osteoporosis
- Polymyalgia Rheumatica
- Psoriatic Arthritis
- Reactive Arthritis
- Relapsing Polychondritis
- Rheumatoid Arthritis
- Scleroderma
- Sjogren’s Disease
- Vasculitis