Alopecia Areata: How Not to Miss Satoyoshi Syndrome?

The mini review discussed Satoyoshi syndrome, a multisystem disorder with suspected autoimmune origins, characterized by alopecia, muscle spasms, and diarrhea. It was noted that 60% of patients had antinuclear antibodies (ANA). The syndrome primarily affected girls and young women and could be misdiagnosed as alopecia areata due to similar trichoscopic features. The authors developed diagnostic criteria for Satoyoshi syndrome and proposed two subtypes: ANA-positive, which generally responded well to systemic glucocorticosteroid therapy, and ANA-negative, which had a less favorable prognosis. They recommended that patients with alopecia areata, especially alopecia totalis, be evaluated for muscle spasms, diarrhea, and ANA to avoid missing a diagnosis of Satoyoshi syndrome.