Colloid cysts are benign intraventricular lesions that may present with a variety of neurologic symptoms, most commonly headache from obstructive hydrocephalus.
Jul. 11, 2019
Aerobic gram-negative Neisseria meningitidis diplococcal bacteria (aerobic gram-negative, magnification 1150x). (Courtesy of Centers for Disease Control and Prevention Public Health Image Library, image 6423; contributed by Dr. Douglas Lanska.)