[Ultrastructural studies on the pterygium. II. Connective tissue, vessels and nerves of the conjunctival part (author's transl)].

摘要: The stromal part of the pterygium is remarkably rich in plasma cells. connective intercellular substance shows two different pathological modifications: A clotting together collagen fibres to broad, osmiophilic, elastoid bands and a widening spaces containing granular nonfibrillar ground-substance . vascular system consists mostly fenestrated sinusoid capillaries. Their endothelial cells frequently show degenerative changes basement membrane vessels can be as thick up 50--100 fold normal size. For first time nervous formations could found pterygium. Axons autonomic join basal epithelial cells, where they form terminal endings. Encapsulated myelinated nonmyelinated corpusles probably stem from sensory system.