Giant mucoceles of the frontal sinus are rare but their recognition is important in the differential diagnosis of proptosis and fronto-orbital lesions. The authors describe a patient with frontal giant mucocele with intracranial as well as orbit and ethmoid sinus involvement. Thirty-two years after a frontal sinus fracture, a 51-year-old female presented with headache, and left exophthalmos and...

A case of exophthalmos due to zygomatic mucocele in a puppy with ipsilateral segmental maxillary atrophy is reported. A 7-month-old, mixed breed, male dog suffered the sudden-onset of unilateral painful exophthalmos and a gradual swelling of the right temporal region. A compressing, right retrobulbar mass was observed by ultrasound. Computed tomography revealed a large multiloculated cyst-like ...

Frontal mucocele is not commonly masked as upper lid abscess.A 72-year-old Chinese man with underlying hyperthyroidism complained of left upper eyelid swelling of 6 months duration. The swelling had persisted and worsen when intravenous antibiotic was changed oral type. Visual acuity on presentation was hand motion and reverse relative afferent pupillary defect was present. Because the swelling...

A 66 year old Indian gentleman presented with a 3 days history of headache and gradual progressive loss of vision in his eft eye, ophthalmological assessment showed no light perception in his left eye with papilledema and afferent papillary defect. Computed tomography (CT) and Magnetic Resonance Imaging (MRI) were done and showed an expanding lesion in the left anterior clinoid process encroach...

Other tumors include vascular tumors (e.g. hemangiomas, lymphangioma), lacrimal gland tumors (e.g. dacryoadenitis, benign mixed tumor, sarcoidosis and adenoid cystic carcinoma), and growths that extend from the sinuses into the orbit (e.g. squamous carcinoma, mucocele). Metastatic cancer can also form an orbital tumor. Lastly, an orbit tumor can also be caused by inflammation (e.g. pseudotumor,...

There are various causes that can lead to compressive optic neuropathy. We present here orbital apex cyst as an unusual cause of compressive optic neuropathy in a 49-year-old male. He presented with 2 weeks painless loss of vision in the left eye with left-sided headache. He had had left functional endoscopic sinus surgery for left nasal polyps 4 years earlier. Magnetic resonance imaging of bra...

Three cases of craniofacial fibrous dysplasia are reported, all presenting to the ophthalmologist first. They all had ocular complications due either to direct involvement of the orbital bones or to secondary complications. Sphenoidal mucocele is added to the other complications previously reported, and accordingly a classification of the various ways that fibrous dysplasia can affect the ocula...

A 65-year-old male presented with a 3-year history of orbital symptoms. An imaging-based diagnosis of fibrous dysplasia involving the skull base was made at another institution. CT showed a diffuse sinonasal mass and ground-glass appearance of the bones of the anterior skull base with bony defects and mucocele formation. MRI demonstrated an accompanying intracranial and orbital rind of soft tis...

This study evaluated the efficacy of the modified endoscopic Lothrop procedure (MELP) for complicated frontal mucoceles and endoscopic marsupialization for other paranasal sinus mucoceles. It was a retrospective, consecutive case review of sinus mucoceles treated endoscopically by a single surgeon over a four-year period (1998-2002). There were 41 mucoceles in 28 patients, including 24 frontal,...

Mucocele is defined as an epithelial-lined, mucus-containing benign sac completely filling the sinus and can be seen expanding to induce pressure effects on surrounding structures. Frontoethmoidal mucocele is by far the most common due to the complexity of its drainage, and incidence of maxillary mucocele is least. A 20-year-old female presented with a chief complaint of protruding right eyebal...