Subacute cutaneous lupus associated with Hashimoto's thyroiditis

Area of Science:

• Dermatology
• Rheumatology
• Endocrinology

Background:

• Subacute cutaneous lupus erythematosus (SCLE) is a photosensitive autoimmune skin condition.
• SCLE often presents with mild systemic symptoms and specific autoantibodies.
• Hashimoto's thyroiditis is an autoimmune endocrine disorder frequently associated with other autoimmune diseases.

Observation:

• A patient with pre-existing Hashimoto's thyroiditis and Sjögren's syndrome was monitored.
• The patient subsequently developed symptoms consistent with subacute cutaneous lupus erythematosus.
• The onset of SCLE occurred two years after the initial diagnosis of Hashimoto's thyroiditis and Sjögren's syndrome.

Findings:

• This case presents a potential new association between Hashimoto's thyroiditis, Sjögren's syndrome, and subacute cutaneous lupus erythematosus.
• The described patient exhibited characteristic features of SCLE alongside established autoimmune conditions.
• No prior literature has documented this specific combination of autoimmune diseases.

Implications:

• This case suggests a possible link or predisposition between Hashimoto's thyroiditis/Sjögren's syndrome and the development of SCLE.
• Further research is warranted to investigate the immunological mechanisms underlying this potential association.
• Clinicians should consider screening for SCLE in patients with Hashimoto's thyroiditis and Sjögren's syndrome.