They are known as the anterior cranial fossa, middle cranial fossa and posterior cranial fossa. Each fossae accommodates a different part of the brain. The anterior cranial fossa is the most shallow and superior of the three cranial fossae. It lies superiorly over the nasal and orbital cavities.
Benign prostatic hyperplasia: A common, noncancerous enlargement of the prostate gland. The enlarged prostate may compress the urinary tube (urethra), which courses through the center of the prostate, impeding the flow of urine from the bladder through the urethra to the outside. Abbreviated BPH. If BPH is severe enough, complete blockage can occur.
Benign tumor: The growth of benign tumors produce a mass effect that can compress tissues of origin, as in hepatic adenoma (a benign tumor of hepatocytes, or liver cells). Although benign tumors generally grow slowly, cases of fast growing benign.everal benign, or noncancerous, tumors also can form in the liver. Many do not cause. Liver Tumors: Tumors are abnormal masses of tissue that form when cells begin to reproduce at an increased rate. The liver can grow both noncancerous (benign) and.