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Báo cáo y học: " Intramuscular myxoid lipoma in the proximal forearm presenting as an olecranon mass with superficial radial nerve palsy: a case report"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Intramuscular myxoid lipoma in the proximal forearm presenting as an olecranon mass with superficial radial nerve palsy: a case report. | Lewkonia et al. Journal of Medical Case Reports 2011 5 321 http www.jmedicalcasereports.eom content 5 1 321 JOURNAL OF MEDICAL CASE REPORTS CASE REPORT Open Access Intramuscular myxoid lipoma in the proximal forearm presenting as an olecranon mass with superficial radial nerve palsy a case report Peter Lewkonia1 Shaun AC Medlicott2 and Kevin A Hildebrand1 Abstract Background Extremity lipomas may occur in any location including the proximal forearm. We describe a case of a patient with an intramuscular lipoma presenting as an unusual posterior elbow mass. Case presentation We discuss the case of a 57-year-old Caucasian man who presented with a tender posterior elbow mass initially diagnosed as chronic olecranon bursitis. A minor sensory disturbance in the distribution of the superficial radial nerve was initially thought to be unrelated but was likely caused by mass effect from the lipoma. No pre-operative advanced imaging was obtained because the diagnosis was felt to have already been made. At the time of surgery a fatty mass originating in the volar forearm muscles was found to have breached the dorsal forearm fascia and displaced the olecranon bursa. Tissue diagnosis was made by histopathology as a myxoid lipoma with no aggressive features. Post-operative recovery was uneventful. Conclusion We present a case of an unusual elbow mass presenting with symptoms consistent with chronic olecranon bursitis a relatively common condition. The only unexplained pre-operative finding was the non-specific finding of a transient superficial radial nerve deficit. We remind clinicians to be cautious when diagnosing soft tissue masses in the extremities when unexplained physical findings are present. Background Nerve entrapment at the elbow has been described affecting the median ulnar and radial nerves as well as their divisions. Symptoms are variable and depend on the location of the lesion and cause of entrapment. Over the past three decades radial tunnel syndrome has come .