1959 Volume 18 Issue 3 Pages 457-462
The argyrophilic cells in the lobus intermedius of dog and cat were studied.
1. This argyrophilic cell and its processes are impregnated with silver especially well by YANO's borax-formalin method for neuroglia and by RIO HORTEGA's silver carbonate method.
2. This cell can not be stained by GOMORI's CH-P method, GROS-SCHULTZE's method and BODIAN's method for nerve fiber. The cell has no NISSL substance. It can not be silvered by BIELSCHOWSKY-MARESCH-SANO's method for lattice fiber.
3. These argyrophilic cells have their perikaryons at various levels in the lobus intermedius and extend bipolar or multipolar processes which end in cone-like enlargements on the wall of the hypophysial cavity and in the connective tissue between intermediate and posterior lobes. Some processes go further into the lobus posterior.
4. The argyrophilic cell is neither a connective tissue element nor a nerve cell. There is not enough proof to decide that the cell is a neuroglia cell or that it is what ROMEIS called‘undifferenzierte Zellen’. Nothing is known about its origin, its nature and its relations with the neurosecretory system, but it may be supposed to be a cell participating in the mutual functional relations between intermediate and the posterior lobes.
