General Surgery — Flashcards

Flashcard 731: _____ is an infection of the soft tissues anterior to the orbital septum, including the eye lids and surrounding tissue

Answer: Preseptal cellulitis

Flashcard 732: How can you differentiate between orbital and preseptal cellulitis? _____ Orbital causes oedema/erythema of conjunctiva as well as eyelids

Answer: Orbital usually has ophthalmoplegia, proptosis, decreased vision and papilloedema

Flashcard 733: Periorbital cellulitis is commonly caused by _____

Answer: superficial infection anterior to the orbital septum (e.g. chalazion, bug bite)

Flashcard 734: What is the likely diagnosis in a patient that presents with a hard, painless bump on the eyelid? _____

Answer: Meibomian cyst (chalazion)

Flashcard 735: Infective conjunctivitis can be caused by _____, bacterial, or fungal/parasitic

Answer: viral

Flashcard 736: Small artery disease can cause central retinal artery occlusion in _____ patients commonly co-morbid with diabetes or/and hypertension.

Answer: older

Extra: Central Retinal Artery Occlusion (CRAO) is essentially an 'ischemic stroke' of the eye. In older patients, the primary risk factors are those that promote atherosclerosis (HTN, DM, Smoking, Hyperlipidemia). In younger patients, we look for cardiac embolic sources, vasculitis, or thrombophilias.

Flashcard 737: Is visual acuity affected in infective conjunctivitis? _____

Answer: No, only potential blurring from discharge

Flashcard 738: _____ is the most common form of skin cancer

Answer: Basal cell carcinoma

Flashcard 739: The most common cause of central retinal artery occlusion is _____

Answer: carotid artery atherosclerosis

Flashcard 740: Is infective conjunctivitis typically unilateral or bilateral?

Answer: Typically starts unilaterally, then becomes bilateral within 24-48 hours.