Abstract:
Introduction:
Orbital dermoid is a congenital benign cystic teratoma
(choristoma) that originates from aberrant ectodermal tissue,
displacement along embryonic lines of closure, when the suture
lines of skull close, epidermal or dermal elements may pinch off
and form cysts.
Purpose:
Describe the imaging presentation of the orbital dermoid.
Material and methods:
During the last 10 years, 3 cases of dermoid were diagnosed during
the imaging examination performed in F. M. C.
“Galaxia”. All 3
patients were boys. The age of these children ranged from 3 to 17
years. There were not recorded any family history or action of any
harmful factor during pregnancy
Results: The volume formation was determined by imaging
examination. Radiological examination was relevant in determining a
volume formation in the form of dental tissue placed intraorbitally,
in 2 cases, as well as intraocular formation, in one case, in all of
them the dimensions were less than 1 x 1 cm. In 2 patients the
underdeveloped tissue included one tooth and in one person - 2
teeth. All 3 cases were operated outside the Republic of Moldova:
surgery was performed to remove the volume formation in patients
with extraocular dermoid and secondary plasty. In case of
intraocular volume formation, enucleation was performed.
Conclusions:
In most cases the intraorbital dermoid cannot be directly visualized
and requires imaging examination to detect a positive diagnosis.
Because visual acuity is affected and considering the risk of
malignancy development during life, surgery with dermoid removal
is recommended.
Description:
Department of Radiology and Imaging, “Nicolae Testemițanu”
State University of Medicine and Pharmacy, Chisinau, Republic
of Moldova
