Sixty-four canine cutaneous round cell tumors were divided into 25 mast cell. tumors, I5 histiocytomas, nine cutaneous lymphosarcornas and 15 transmissible venereal. tumors. The final diagnosis was made from cytologic, clinical and histologic findings.
Gonadotropin-releasing hormone (GnRH) Written By: Gonadotropin-releasing hormone (GnRH), also known as luteinizing hormone-releasing hormone, a neurohormone consisting of 10 amino acids that is produced in the arcuate nuclei of the hypothalamus. GnRH stimulates the synthesis and secretion of the two gonadotropinsâluteinizing hormone (LH) and follicle-stimulating hormone (FSH)âby the anterior pituitary gland.
1 At the pituitary gland, GnRH stimulates the release of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) into the general circulation.  LH then binds to its target cells (Leydig cells in males and theca cells in females) and increases the expression of steroidogenic acute regulatory protein (StAR)