SUMMARY: Over 5000 cases; Treatment Indications; Functional indications; Obsessive-Compulsive Disorders; Multi Centers in Iraq ( Basra, Erbil, Baghdad, Al-Taj Center, Saad Al Witry Neuroscience Hospital, Baghdad; Brain Tumors- all types; AVM, Nasopharyngeal CA; Pituitary Tumors; Trigeminal Neuralgia, Mesial Temporal Sclerosis; Cavernous Malformations ; Deep-seated tumors; Residual and Recurrent tumors; Tumor bed; Hypophesectomy for painful metastases; Tremors; Poor Surgical Candidates; Focal Brain Stem Tumors, Other tumors; Corpus Callosectomy; Uveal Disorders and other indications. Large Experience & Results