Abstract
A 65-year-old woman with primary Sjögren’s syndrome showed mental disturbance and skin lesions suggestive of SLE and dermatomyositis (DM). She had no other physical manifestations of SLE or DM. The laboratory findings were consistent with Sjögren’s syndrome. A biopsy specimen obtained from her facial erythema revealed a hydropic degeneration of the basal cell layer and a positive lupus band test. A large, pruritic and edematous erythema of the back simulated characteristic skin lesions of DM. A muscle biopsy showed the findings of myositis which may be seen in Sjögren’s syndrome without any complications with DM. Her skin lesions and mental disturbance showed a dramatic improvement after the administration of oral prednisolone at 30mg/day. The patient has also since been well controlled with prednisolone at 5mg/day. In conclusion, we consider that all her symptoms were caused by primary Sjögren’s syndrome.
