Morton’s neuroma facts #6: Asymtompatic Morton’s neuroma
A study reported in the peer reviewed journal Radiology (1), explored the factors that may define the severity of symptoms of Morton’s neuroma. The prevalence of asymptomatic Morton neuromas in general population is roughly 30%.
The transverse diameter of asymptomatic neuromas is generally smaller than in patients with pain. (Approximately 3mm-7mm or an average 4.5mm as opposed to symptomatic neuromas that are usually in the range of 4mm-8 mm or an average of 5.6 mm). So statistically speaking, the larger Morton’s neuromas are more likely to be painful.
1. Zanetti, M., Strehle, J. K., Zollinger, H., & Hodler, J. (1997). Morton neuroma and fluid in the intermetatarsal bursae on MR images of 70 asymptomatic volunteers. Radiology, 203(2), 516-520.
Janet D. Pearl, MD, MSc is the Medical Director of The Center for Morton’s Neuroma and Complete Spine and Pain Care, an interventional and integrated Pain Management program located in Framingham, Massachusetts. Previously, Dr. Pearl was the Co-Director of the Pain Management Center at St. Elizabeth’s Medical Center, where she was also the Director of the Fellowship program. She is the former Director of a satellite pain center of the Brigham and Women’s Hospital, Pain Management Center, located at the HealthSouth Braintree Rehabilitation Hospital. Dr. Pearl held academic appointments at Harvard Medical School and Tufts Medical School. She serves on the Health Care Services Board of the Commonwealth of Massachusetts Department of Industrial Accidents since 2000 as one of its physician representatives and is Chair of the Committee on Pain Management.