PMC6742887_01
(a) The location of lipoma in the proximal forearm, (b-d) range of movements pronation, supination, and flexion, respectively.
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F1
His elbow range of motion had a terminal restriction which probably was causing his disability (Fig. 1).
Magnetic resonance imaging images (T1 weighted) of the tumor (a) sagittal section, (b) coronal image,  axial image showing multiple hypointense bony spicules seen arising from the cortex and in continuity within the well-circumscribed mass.
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F2
The dimension of the mass was estimated to be 8 cm x 8cm x 4.5 cm (Fig. 2). The mass was explored using elliptical incision and it was found underneath brachioradialis muscle.
Intraoperative images of the tumor. (a) Skin incision, (b) soft tissue dissection, (c) capsular dissection, (d) tumor exposure, (e) tumor stalk can be noted, (f) complete excision of the tumor pedicle, (g) skin closure, (h) tumor dimension, and (i) weighing of the tumor.
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F3
The tumor weighed approximately 220 g (Fig. 3).
Plain radiographs of the forearm in anteroposterior and lateral views. (a)Pre-operative image showing soft tissue shadow of the tumor arising from proximal radius (b) post-operative image showing complete excision of the mass.
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F4
The patient was followed-up for 2 years and was found to have a complete range of motion with no radiological or clinical evidence of recurrence of the tumor (Fig. 4).