2020年4月15日 · Parasinus mucocele . DISCUSSION . Mucoceles of the paranasal sinuses are epithelial-lined, mucus-containing sacs inside a paranasal sinus. They typically arise from chronic inflammation, scarring or surgical manipulation resulting in obstruction of the sinus ostia, although a compartment of a septated sinus can similarly become obstructed [1].

2005年12月1日 · The cause of vertical binocular diplopia in this patient was a ethmoidal sinus mucocele pressing on the globe resulting in effacement of the superior oblique tendon with anterolateral displacement of the trochlea thus causing a limitation to elevation in adduction classically known as Brown Syndrome.

2010年1月12日 · CT of the orbits and the paranasal sinuses is essential. Evidence of sinusitis mandates otolaryngology involvement. Lumbar puncture is necessary if meningeal signs and symptoms develop. Conjunctival cultures add very little information. Nasal cultures may be appropriate if there is significant nasal discharge in the setting of sinusitis.

Orbital(Osteoma(Gina(M.(Rogers,(MD(and(Keith(D.(Carter,(MD(June(3,(2011((Chief(Complaint:!Left!eyelid!mass! ...

2011年6月3日 · More often, osteomas originate from the paranasal sinuses. Among the bony orbital tumors, fibrous dysplasias and osteomas are the most commonly encountered entities (Selva et al 2004). An osteoid osteoma is a benign skeletal neoplasm of unknown etiology that is composed of osteoid and woven bones.

2010年1月12日 · sinuses. Other extensions of periorbital structures include the face/eyelids, dacryocystitis and dental infections. Exogenous causes include trauma and orbital/periorbital surgery. An orbital foreign body (specifically organic) should always be entertained in the setting of an orbital cellulitis that is not responding to antibiotic therapy.

2010年2月16日 · OD: 2+ erythema/edema of the right upper and lower eyelids, more pronounced medially. Prominent chemosis, especially temporally. No pain with palpation over the lids or sinuses. 2-3 mm of ptosis of the right upper eyelid. OS: within normal limits; Petechial mucosal hemorrhages intraorally.

2011年11月28日 · Orbital leiomyosarcoma can also develop from metastatic lesions from distant sites and from secondary extension from the paranasal sinuses [Kaltreider, et al., 1987]. Rarely, patients can develop primary leiomyosarcoma of the orbit not associated with a history of retinoblastoma; this typically occurs in older females with a mean age of is 63.8 ...

2006年1月23日 · Pagetoid spread is the infiltration of single tumor cells or nests of tumor cells into the overlying epithelium. When this infiltration becomes confluent it is called Bowenoid change. Sebaceous cell carcinoma may also spread through direct extension into adjacent structures such as the intracranial cavity, orbit and paranasal sinuses.

2017年6月14日 · They account for 5-10% of eyelid malignancies and may spread perineurally to invade the orbit or paranasal sinuses. The overall risk of metastasis is less than 5%, but the risk increases to 20-30% when present on lips, ears, or eyelids.