Abnormal dermis morphology Papillary dermis eosinophilic hyaline material 2024-03-30T13:20:05Z Accumulation of eosinophilic hyaline material observed around the papillary dermis and the blood vessels located in it. The papillary dermis is the uppermost layer of the dermis. It intertwines with the rete ridges of the epidermis and is composed of fine and loosely arranged collagen fibers.