Enkephalin immunoreactive stalked cells and lamina IIb islet cells in cat substantia gelatinosa.

Neurons in lamina II of the lumbar spinal cords of colchicine-pretreated cats were stained immunocytochemically for enkephalin. Two morphological types were found. The most common type had the light microscopic characteristics of stalked cell. The other type was found in the deep part of the lamina and had the light and electron microscopic characteristics of the lamina IIb islet cell.