Collision sebaceous and basal cell carcinomas of the eyelid.

Objective: To report a rare case of collision sebaceous and basal cell carcinomas of the eyelid.

Design: Interventional case report.

Methods: An 80-year-old woman presented with a nodular lesion at the center of the left lower eyelid.

Bilateral consecutive blindness due to sphenoid sinus mucocele with unilateral partial recovery.

Background: We present an interventional case report of a rare occurrence of sphenoid sinus mucocele causing bilateral consecutive blindness with unilateral partial recovery after endoscopic surgery.

Methods: A 64-year-old woman with known sphenoid sinus mucocele and right blindness was referred because of an acute drop of vision to hand motion in her only-seeing left eye over 5 days. Imaging revealed a large mucocele enlarging the sphenoid sinus, eroding the base of the skull, protruding into the cranial cavity, and compressing the left optic nerve.

Removal of giant vernal papillae by CO2 laser.

Background: We report our experience in removing giant papillae in cases with severe vernal keratoconjunctivitis using CO2 laser.

Methods: Five cases with conjunctival giant papillae due to severe vernal keratoconjunctivitis were treated with CO2 laser. All cases were resistant to conventional treatment.

The silent sinus syndrome.

Patients with silent sinus syndrome typically present for investigation of facial asymmetry. Unilateral, spontaneous enophthalmos and hypoglobus are the prominent findings at examination. Imaging of the orbit and sinuses characteristically show unilateral maxillary sinus opacification and collapse with inferior bowing of the orbital floor.

Isolated congenital histiocytosis in the palpebral conjunctiva in a newborn.

Purpose: To report a rare case of congenital histiocytosis in a newborn without skin involvement.

Design: Interventional case-report.

Methods: A full-term baby presented with a mass over the palpebral conjunctiva of his left upper lid.

Rhinolithiasis: a very late complication after dacryocystorhinostomy with rubber-gum and polyethylene stenting.

Purpose: To describe a rare case of rhinolith formation 21 years after dacryocystorhinostomy (DCR) with rubber gum and polyethylene tubing surgery.

Design: Interventional case report.

Methods: A 23-year-old-woman underwent uneventful left DCR with rubber gum and polyethylene tubing for chronic dacryocystitis.

Endoscopic orbital decompression for Graves' ophthalmopathy.

Background: In patients with Graves' ophthalmopathy, orbital decompression surgery is indicated for compressive optic neuropathy, severe corneal exposure, or for cosmetic deformity due to proptosis. Traditionally this has been performed through a transantral approach, but the associated complication rate is high. More recently, endoscopic orbital decompression has been performed successfully with significantly fewer postoperative complications.

Ophthalmic manifestations in Langerhans cell histiocytosis.

Histiocytosis of childhood is characterized by localized or generalized proliferation of cells of the mononuclear phagocyte system and the dendritic cell system. In patients with Langerhans cell histiocytosis, the orbit is the most involved site encountered in ophthalmic practice, usually as a lytic lesion in the zygomaticofrontal suture. Patients usually present with acute or chronic periorbital swelling.

Blast injury caused by a booby-trapped cellular phone.

Terrorists are recently using cellular phones to remotely detonate bombs. A patient was injured while assembling a bomb connected to a cellular phone. The patient sustained combined injury to the head and to the dominant hand which held the phone.

Intrasinus wood foreign body causing orbital cellulitis in congenital insensitivity to pain with anhidrosis syndrome.

A 2-year-old boy with congenital insensitivity to pain with anhidrosis (CIPA) was referred with a 2-day history of left periorbital swelling and mucoid conjunctival discharge. Marked worsening was noted despite intramuscular ceftriaxone treatment for 3 days, with marked proptosis, conjunctival chemosis, and a frozen eye. Orbital cellulitis was suspected.

Langerhans cell histiocytosis with periorbital cellulitis.

Purpose: To report a case of Langerhans cell histiocytosis presenting as periorbital cellulitis.

Design: Interventional case report.

Methods: A 3-year-old girl presented with periorbital swelling of the right upper lid laterally of two days' duration.