[Deep muscular lipoma of the shoulder. Apropos of 4 cases].
OBJECTIVE
The authors report 4 cases of inter and intra-muscular lipoma of the shoulder and make a review of the diagnosis of this localization.


METHODS
All 4 cases had shoulder pain and some limitation of shoulder motion, one had hypoesthesia on the lateral side of the arm. 3 had magnetic resonance imaging (MRI) and two ultrasonography examination, three of them had a surgical resection and for one surgery was considered too aggressive and had a MRI control one year later.


RESULTS
There was no problem for the surgical procedure and the histology confirmed the diagnosis. The last patient had a rehabilitation program and the MRI control showed lesion stability.


CONCLUSIONS
Lipoma are rare, X-rays, ultra-sonography and CT scans are not sufficient, MRI is the best exploration to differentiate lipoma and lipo-sarcoma, but the main problem is for low grade sarcoma. Histology is the only way to make the diagnosis with the whole tumor.
Le Huec
J C
JC
Service d'Orthopédie-Traumatologie, CHU Pellegrin, Bordeaux.
Leger
O
O
Schaeverbeke
T
T
Moinard
M
M
Rupp
L
L
Le Rebeller
A
A
D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008067:Lipoma / Q000175:diagnosis* / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D019042:Muscle Neoplasms / Q000175:diagnosis* / Q000601:surgery; D011379:Prognosis; D012782:Shoulder