Dermoid cyst (also known as choristoma) is a benign tumor growing out of a embryonic suture line. The tumour consists of normal cells occurring in an abnormal location. It is usually diagnosed in children when it is first visible but it is not uncommon to have adults coming to the clinic to know if it can be removed.
The MRI scan showed a large intraconal well defined mass sitting right next to the optic nerve causing mass effect which in turn was causing diminution of vision. My working differentials going into surgery- based on location and imaging was Cavernous Hemangioma, Fibrous Histiocytoma, Dermoid cyst, Schwannoma among others.
Nothing beats the feeling of being able to remove a skull base tumour through a small incision in the upper eyelid crease. This here is after the tumour has been completely excised. This picture shows the amount of exposure we can achieve by just the orbital route and also that’s me admiring the orbital anatomy for a few seconds before closing up.
Our team consisting of a Neuro-surgeon, Oculoplastic Surgeon (Me) and Maxillofacial Surgeon operated on him for nearly 10 hours to get this young man back to his pre-accident status. The Neurosurgeon fixed his CSF leak after taking a bi-coronal flap approach and we then painstakingly fixed his frontal bone fractures piece by piece using titanium plates and mesh as a framework. I then repaired both his orbits👀 with pre-fabricated combined medial and floor titanium implants using the trans-conjunctival approach to avoid any extra skin incisions. The left anterior nasal buttress had to be fixed with a titanium mini-plate from an oral incision. The flattened nose 👃still had to be fixed which was then suspended from the frontal bone titanium frame while using internal nasal splints and external POP splint to hold the nasal bones in the desired position. This was perfect team work which reflected in the excellent post-operative outcome.
It is very rare that oculoplastic surgeons are asked to provide access to interventional neuro-radiologists. This is one such case. We have performed such interventions in 3 cases till date at our hospital with similarly successful outcomes. The important thing to remember as a surgeon while accessing the SOV is that the vein is arterialised due to the CCF and bleeding can be very severe is the vessel wall is damaged.
Blepharoplasty is the removal and repositioning of the skin, muscle and fat of the upper and/or lower eyelid. In the upper eyelid the incision is made and hidden in the natural lid crease. In the lower eyelid the incision is made along the skin just beneath the eyelashes or in the moist surface of the eyelid known as conjunctiva.