Brain parasite cysts contain multiple active forms, not dormant cells, explaining treatment resistance and reactivation patterns.

Medically reviewed by Susan Bard, MD Key Takeaways A pilonidal cyst is a painful lump located at the base of the spine at the top of the buttocks.Symptoms can include a painful lump, discharge, and ...

Arachnoid cysts are benign, cerebrospinal fluid-filled sacs that typically arise from developmental anomalies in the arachnoid membrane. Although often discovered incidentally, these lesions can ...

A University of California, Riverside team of scientists has found that Toxoplasma gondii, a common parasite affecting up to ...

Bile duct cysts are atypical enlargements that develop within your biliary system. They may disrupt the normal flow of bile from the gallbladder and liver to your small intestine. Bile duct growths ...

DEAR MAYO CLINIC: I am a 59-year-old man who had a Baker’s cyst 20 years ago. It returned three years ago. I had surgery, which was supposed to take care of things. I have had it drained twice, only ...

Pineal cysts can occur in the brain’s pineal gland. While most people with pineal cysts never experience symptoms, some may develop headaches, vision changes, or sleep disturbances. Pineal cysts are ...

Vaginal cysts come in four main types including Bartholin's gland and Müllerian cysts. Most vaginal cysts will go away on their own and do not require medical treatment. See a doctor if the cyst ...