lipofuscin

Introduction

Yellow-brown, finely granular intracytoplasmic pigment, particularly prominent in liver & heart of aging patients. Represents indigestible residue of autophagocytic vesicles. Composed of polymers of lipids & phospholipids complexed with protein.

More general terms

• abnormal morphologic structure (malformation)
• lipid
• pigment

More specific terms

• retinal pigment epithelium lipofuscin

Additional terms

• N-retinylidine-N-retinyl ethanolamine
• neuronal ceroid lipofuscinosis