Stump neuroma - upper limb
History of upper limb amputation with recurrent stump pain and numbness.
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There about two well defined fusiform mass lesions showing an intermediate signal on T1WI and hyperintense signal on T2WI seen at the course of ulnar and median nerves.
After contrast administration, the largest shows peripheral enhancement and the other one being heterogeneous in enhancement.
Amputation at the wrist (wrist disarticulation).
Neuromas are a non-neoplastic proliferation that occurs at the end of an injured nerve (as can occur in amputation). Detection of neuroma is usually difficult when the neuroma is less than 1 cm 1,2.
- 1. Singson RD, Feldman F, Slipman CW, Gonzalez E, Rosenberg ZS, Kiernan H. Postamputation neuromas and other symptomatic stump abnormalities: detection with CT. (1987) Radiology. 162 (3): 743-5. doi:10.1148/radiology.162.3.3809488 - Pubmed
- 2. Provost N, Bonaldi VM, Sarazin L, Cho KH, Chhem RK. Amputation stump neuroma: ultrasound features. (1997) Journal of clinical ultrasound : JCU. 25 (2): 85-9. doi:10.1002/(sici)1097-0096(199702)25:2<85::aid-jcu7>3.0.co;2-f - Pubmed