[Lipoma of the skull base. A case report].
OBJECTIVE
Intra osseous lipomas are rare benign tumours that occur most frequently within the metaphysis of long bones. Involvement of the skull base is exceptional. We report a case of a lipoma of the skull base discovered incidentally.


METHODS
A 45 year-old female patient consulted for galactorrhea with Hyperprolactinemia.


RESULTS
MRI showed, in addition to the microadenoma, a high signal intensity T1 and T2 and fat saturated expansive lesion of the body and the right greater wing of the sphenoid. CT-scan of the skull base showed that this lesion was a well circumscribed fat containing and trabeculated lytic lesion leading to the diagnosis of a lipoma of the sphenoid.


CONCLUSIONS
Lipomas of the skull base are exceptional. They are well recognized on CT-scan and MRI and in typical cases biopsies are not necessary. No treatment is necessary for asymptomatic lesions.
Service de Radiologie, Hôpital La Rabta, Tunis, Tunisie. nouira.kais@gnet.tn
K
K
Nouira
H
H
Hila
A
A
Mekni
M
M
Azaïz
S
S
Sahtout
E
E
Menif
R
R
Slim
D005260:Female; D006801:Humans; D008067:Lipoma / Q000175:diagnosis*; D008875:Middle Aged; D012888:Skull Neoplasms / Q000175:diagnosis*; D013100:Sphenoid Bone