| Rheumatologic diseases |
- Systemic lupus erythematosus
- Reactive arthritis
|
| Gastrointestinal diseases |
- Inflammatory bowel disease
- Celiac disease
|
| Autoinflammatory conditions |
- Periodic fever, aphthous stomatitis, pharyngitis and adenitis (PFAPA) syndrome
- Hyperimmunoglobulinemia D syndrome
- A20 haploinsufficiency
|
| Infections |
- Herpes simplex virus
- Human immunodeficiency virus
|
| Dermatologic diseases |
- Stevens-Johnson syndrome
- Pemphigoid
- Pemphigus
- Lichen planus
- Linear IgA bullous dermatosis
|
| Hematologic conditions |
| |
| Other |
- Drugs including methotrexate, other chemotherapy and nicorandil
- Nutritional deficiencies such as vitamin B12, iron and folic acid
- Recurrent aphthous stomatitis
|
