Radiology glossary

Knee findings, explained

Plain-English explainers for common knee imaging terms — meniscal and ACL tears, Baker's cysts, kneecap cartilage wear, tendon problems, and joint effusions — what they mean, how MRI and ultrasound show them, and what to ask your doctor.

• Meniscal Tear — What It Means on Your Report

  A meniscal tear means the knee's cushioning cartilage is torn. Plain-English explainer: MRI tear patterns, pitfalls, phrasing, and next step

• Joint Effusion — What It Means on Your Report

  Joint effusion means extra fluid inside a joint. Plain-English explainer: causes, how MRI and ultrasound show it, and questions for your doc

• ACL Tear — What It Means on Your Report

  An ACL tear means the knee's key stabilizing ligament is torn. Plain-English explainer: MRI signs, pitfalls, phrasing, and what your doctor

• Baker's Cyst — What It Means on Your Report

  A Baker's cyst is a fluid-filled sac behind the knee. Plain-English explainer: causes, when it matters, and questions for your doctor.

• Chondromalacia Patella — What It Means on Your Report

  Chondromalacia patella means softening of the cartilage behind the kneecap. Plain-English explainer and questions for your doctor.

• Patellar Tendinopathy — What It Means on Your Report

  Patellar tendinopathy (jumper's knee) means the tendon below the kneecap is irritated. Plain-English explainer and doctor questions.