Morton neuroma

Case contributed by Andrew Dixon

Presentation

12 month history of forefoot pain.

Patient Data

Age: 50 years
Gender: Female
mri

Abnormal soft-tissue between the 3rd and 4th metatarsal heads.

Split image: Left image shows abnormal soft-tissue between the 3rd and 4th metatarsal heads. Right image shows the corresponding normal web space on the other foot.

Annotated image

Red highlights position and shape of the Morton's neuroma. 

Case Discussion

Morton's neuroma is seen as presence of abnormal soft-tissue located between the 3rd and 4th metatarsal heads (3rd web space) which is T1 isointense to muscle.  The tissue bulges inferiorly and superiorly to appear "figure of eight" or dumbbell shaped. 

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