Lupus erythematosus tumidus (LET) is a rare form of chronic cutaneous lupus erythematosus (CCLE). It is characterized by the presence of red, raised, and scaly patches on the skin. These patches may be itchy and can be found on the face, neck, chest, and upper arms. LET is considered to be a milder form of CCLE and is usually treated with topical corticosteroids.

The symptoms of Lupus erythematosus tumidus (LET) vary from person to person, but may include:

- Raised, red patches on the skin
- Skin Lesions that may be itchy or painful
- Joint Pain and swelling
- Fatigue
- Fever
- Hair loss
- Mouth sores
- Abnormal blood tests
- Kidney problems
- Anemia
- Abnormal liver function tests
- Abnormal cholesterol levels

The exact cause of lupus erythematosus tumidus (LET) is unknown. However, it is believed to be an autoimmune disorder, meaning that the body’s immune system mistakenly attacks its own healthy tissues. This can be triggered by certain environmental factors, such as exposure to ultraviolet light, certain medications, and infections. Genetic factors may also play a role in the development of LET.

1. Sun protection: Avoiding direct sunlight and wearing protective clothing and sunscreen can help reduce the risk of flares.

2. Topical corticosteroids: These medications can help reduce inflammation and redness.

3. Systemic corticosteroids: These medications can help reduce inflammation and suppress the immune system.

4. Antimalarial medications: These medications can help reduce inflammation and suppress the immune system.

5. Immunosuppressants: These medications can help reduce inflammation and suppress the immune system.

6. Phototherapy: This treatment uses ultraviolet light to reduce inflammation and suppress the immune system.

7. Biologic therapies: These medications can help reduce inflammation and suppress the immune system.

1. Female gender
2. Age between 20-40
3. Family history of lupus
4. Exposure to ultraviolet light
5. Certain medications, such as hydralazine, procainamide, and quinidine
6. Certain infections, such as Epstein-Barr virus, cytomegalovirus, and parvovirus
7. Smoking
8. Stress

There is no cure for Lupus erythematosus tumidus, but medications can be used to manage the symptoms. These medications include corticosteroids, antimalarials, immunosuppressants, and biologics. Additionally, lifestyle modifications such as avoiding sun exposure, using sunscreen, and avoiding stress can help reduce symptoms.