KEY FACTS Terminology Definition: Purulent accumulation between bony orbital wall & orbital periosteum You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology Venous vascular malformation of orbit characterized by endothelial-lined cavernous spaces Pseudoencapsulated morphology distinguishes orbital cavernous venous malformation from venous malformations elsewhere in head & neck Synonymous with cavernous "hemangioma" (misnomer) You’re Reading a Preview Become a Clinical…
KEY FACTS Terminology Definition: Congenital vascular malformation with variable lymphatic and venous vascular elements You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology Congenital orbital ectodermal inclusion lesion resulting in choristomatous cyst Dermoid : Includes dermal appendages Epidermoid : Dermal adnexal structures absent You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become…
KEY FACTS Terminology Coloboma = gap or defect of ocular tissue May involve any or all structures of embryonic cleft Types of posterior coloboma Optic disc coloboma Choroidoretinal coloboma Related but distinct anomalies Morning glory disc anomaly Peripapillary staphyloma You’re…
Imaging Approach and Indications Imaging of the orbit encompasses 2 clinically distinct areas of ophthalmology. Eye (or globe) Bony orbit, soft tissues, and periorbita Lesions in these 2 areas result in specific clinical profiles. When a patient is referred for…
KEY FACTS Imaging Arises from maxilla, nasal septum, and skull base Nasal septum location: Posterosuperior vomer Bone CT: Chondroid matrix calcification and narrow bony transition zone 50% with chondroid matrix MR: Increased (high) signal on T2 images and heterogeneous enhancement…
KEY FACTS Terminology Malignant salivary type of adenocarcinoma You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here
KEY FACTS Terminology Rare, aggressive, sinonasal nonsquamous cell epithelial or nonepithelial malignant neoplasm of varying histogenesis You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log…
KEY FACTS Terminology Sinonasal non-Hodgkin lymphoma: Extranodal lymphoproliferative malignancy You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here