Deposits of neuronal ceroid-lipofuscinosis in transitional structures--electron microscopic study.

Deposits of neuronal ceroid-lipofuscinosis in two cases were studied using the electron microscopy. The structure most frequently observed in both cases was a curvilinear body containing fingerprint patterns. Other structures, such as the granular pattern, zebra body-like structure and vacuole, were also observed less frequently. A loose pattern, which had an intermediate curvature between the fingerprint pattern and curvilinear body, was found for the first time. They might play an important role on the morphogenesis in the deposit of neuronal ceroid-lipofuscinosis.