Fig. 2
From: Neuronal intranuclear inclusion disease with mental abnormality: a case report
a-c: Skin biopsy performed 3 months after onset. a: Light microscopy showed hyperkeratosis of the epidermis. A few lymphocytes and tissue cells infiltrated through the superficial vessels of the dermis. b and c: Electron microscopy showed round-shaped intranuclear inclusions in the nucleus of the fibrocytes (arrow). The intranuclear inclusions had clear borders and were composed of fibrous substances without a membrane structure