Aneurysm, saccular: An aneurysm that resembles a small sack. A berry aneurysm is typically saccular. Last Editorial Review: 6/9/2016 A Visual Guide to Heart Disease Medical Illustrations of the Heart Image Collection Take the Heart Disease Quiz! Popular Collections Beware of Deadly Bug Bites & Stings Recognize These Common Eye Conditions Natural Cold & Flu Remedies Managing Blood Sugar Swings Cholesterol: What the Numbers Mean Omega-3 Foods for a Stronger Heart Low-T and Erectile Dysfunction Joint Friendly Exercises The Most Effective Birth Control Lung Cancer Stages & Treatments Migraine Triggers You Can Avoid Why Heart Attacks Happen Foods to Help You Concentrate Your Cancer Questions Answered Stop Wrecking Your Teeth The Dangers of Blood Clots Learn More About Eating Disorders Surgery or Medication for Crohn's?