PT  - JOURNAL ARTICLE
AU  - Daniel Warden
AU  - Kamil Cieply
AU  - Brandon Armstrong
AU  - Michelle Nelson
TI  - Rhabdomyosarcoma presenting as intramuscular haematoma due to brachioradialis tear after trauma
AID  - 10.1136/bcr-2022-250699
DP  - 2023 Mar 01
TA  - BMJ Case Reports
PG  - e250699
VI  - 16
IP  - 3
4099  - http://casereports.bmj.com/content/16/3/e250699.short
4100  - http://casereports.bmj.com/content/16/3/e250699.full
SO  - BMJ Case Reports2023 Mar 01; 16
AB  - A man in his 40s with a history of neurofibromatosis type 1 presented to the emergency department with worsening anterior elbow pain and swelling after falling from a chair 2 months prior. An X-ray showed soft tissue swelling without fracture and the patient was diagnosed with a rupture of the biceps muscle. MRI of the right elbow showed a brachioradialis tear with a large haematoma along the humerus. This was initially thought to be a haematoma; therefore, wound evacuation was done twice. When the injury failed to resolve, a tissue biopsy was performed. This revealed a grade 3 pleomorphic rhabdomyosarcoma. It is important to consider malignancy in the differential diagnosis with rapidly growing masses even if the initial presentation is suggestive of a benign condition. Neurofibromatosis type 1 is also associated with a higher risk of malignancy than the general population.