Aydin Erdinc, Akkuzu Guzin, Akkuzu Babur, Bilezikci Banu
Baskent University Faculty of Medicine, Department of Otorhinolaryngology, Ankara, Turkey.
BMC Ear Nose Throat Disord. 2006 Apr 18;6:6. doi: 10.1186/1472-6815-6-6.
Mucoceles are slowly expanding cystic lesions with respiratory epithelium containing mucus most commonly affecting the frontal and ethmoidal sinuses. They are caused by obstruction of sinus ostium. Mucoceles exert pressure on the bony boundaries and due to the proximity to the brain and orbit extension to these areas are common.
A case of a frontal mucocele with an accompanying orbital abscess mimicking a fronto-orbital mucocele is reported. A 77 year old female patient suffering from left sided proptosis and pain around the left eye was admitted to our department. She had a history of left frontal sinus mucocele one year ago that was offered an osteoplastic frontal sinus surgery that the patient refused. Patient had limitation of eye movements. Fundoscopic examination revealed a minimal papilledema. Coronal computerized tomography and orbital magnetic resonance imaging showed a frontal mucocele with suspicious erosion of the orbital roof and a superiorly localized extraconal mass displacing the orbit lateroinferiorly. Frontal and orbital masses had similar intensities. Thus surgery was planned for a fronto-orbital mucocele. During surgery no defect was found on the orbital roof. Frontal mucocele and orbital cystic mass was removed separately. Pathological examination showed a frontal mucocele and an orbital abscess wall. Postoperatively eye movements returned to normal and papilledema resolved.
Fronto-orbital mucoceles are commonly encountered pathologies, but frontal mucocele with an orbital abscess is a rarely seen and should be kept in mind because their treatments differ.
黏液囊肿是一种缓慢扩张的囊性病变，内衬呼吸道上皮，内含黏液，最常累及额窦和筛窦。它们由鼻窦开口阻塞引起。黏液囊肿对骨质边界施加压力，由于靠近脑和眼眶，向这些区域扩展很常见。
报告一例伴有眶内脓肿的额部黏液囊肿，类似额眶黏液囊肿。一名77岁女性患者因左侧眼球突出和左眼周围疼痛入住我科。她一年前有左侧额窦黏液囊肿病史，曾接受过额窦骨成形术，但患者拒绝了。患者存在眼球运动受限。眼底检查发现轻度视乳头水肿。冠状位计算机断层扫描和眼眶磁共振成像显示一个额部黏液囊肿，怀疑眶顶有侵蚀，眶锥外上方有一局限性肿块，将眼眶向外下移位。额部和眶部肿块信号强度相似。因此计划对额眶黏液囊肿进行手术。手术中未发现眶顶有缺损。分别切除额部黏液囊肿和眶部囊性肿块。病理检查显示为额部黏液囊肿和眶部脓肿壁。术后眼球运动恢复正常，视乳头水肿消退。
额眶黏液囊肿是常见的病变，但伴有眶内脓肿的额部黏液囊肿很少见，应予以重视，因为它们的治疗方法不同。
