Keywords:
Eyes, Paediatric, Oncology, CT, MR, Screening, Surgery, Neoplasia, Cancer, Metastases
Authors:
D. BASRAOUI1, F. JAAFARI2, H. Jalal1; 1Marrakesh/MA, 2MARRAKECH/MA
DOI:
10.1594/ecr2018/C-0776
Results
The average age of our patients was 5 years,
mostly female (n = 7) .
The most frequent reason for consultation was unilateral exophthalmia in 92% of cases (Figure 1).
All our patients underwent a CT examination,
five of them only performed MRI; for financial reasons .
· CT findings:
CT scan shows a mass iso dense with respect to the muscles,
extra-connal,
homogeneous and well circumscribed,
taking the contrast in a moderate to intense way (figure 2),
aspect found in our series (figure 7),
with calcifications occurring only if bone destruction,
sometimes thickening of the eyelids,
sometimes thinning or destruction of the bones,
which can be observed in up to 40% of patients,
more rarely necrosis,
hemorrhage and cavitation with ring enhancement.
It can also be used to evaluate the invasion of the naso-sinus cavities and the cavernous sinus.
[1]
· MR findings :
The MRI shows a mass in iso or hyposignal in T1 sequence,
in hyper signal in T2 sequence compared to the muscles with a moderate to intense enhancement (figure 3).
The mass can deform or displace the globe and extraocular muscles but rarely invades these structures.
It also makes it possible to establish the balance of periorbital extension,
as well as to the sinuses and the meninges,
which makes change the tumoral stage and thus the therapeutic management and the prognosis.
[2]
All these examinations allowed us to objectify an hypodense mass compared to the muscles in 84% cases,
the 5 cases that had an MRI showed an orbital expansive process in hyposignal with respect to the muscles on the T1 sequence in hypersignal on the sequence T2 and is enhanced after injection of contrast.