Angular dermoid cysts are common periorbital tumours of
embryonic origin in children and adolescents; and arise along the bony sutures
as a result of abnormal ectodermal sequestration during development. Usually
present in early childhood, are characteristically small benign and
slow-growing lesions. External angular dermoid present in the superotemporal
quadrant is more common compared to internal angular dermoid in the superonasal
quadrant. We report an unusual case of a large internal angular dermoid cyst
indenting the globe in a 3-year-old girl who presented with a left upper eyelid
mass at a medial angle since one year of age. There was mild mechanical ptosis
but no displacement of the globe. Non-contrast computed tomography image
revealed a well-defined rounded cystic lesion (15x14 x19 mm) medially in the
extraconal region of the left orbit, indenting on the globe. The cyst was
excised completely by anterior orbitotomy through a small superior lid crease
incision. Cosmetic outcome after surgery was excellent with equal palpebral
aperture height in both eyes.
Usually, mass effects on the globe and surrounding
structures are features of deep orbital dermoid; can rarely occur in cases of
large anterior periorbital dermoid, as was seen in this case. Early surgical
excision is recommended and performed in the majority of cases, particularly to
restore facial cosmesis and to avoid pressure effects from large dermoid cysts.
Author(s)details:-
Suwarna Suman
Department of Ophthalmology, All India Institute of Medical Sciences
Jodhpur, Rajasthan, India.
Hemant Uttamrao
Rathod
Department of Ophthalmology, All India Institute of Medical Sciences
Jodhpur, Rajasthan, India.
Arushi Kumar
Department of ENT, Nalanda Medical College & Hospital, Patna, Bihar,
India.
Virendra K. Pal
Eye Hospital, Regional Institute of Ophthalmology Sitapur, UP, India.
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here :- https://doi.org/10.9734/bpi/mria/v3/27
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