Related Experiment Video
Updated: Jun 10, 2026

Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
Published on: July 5, 2021
[Five cases of invasive rhino-orbital-skull base aspergillosis with orbit apex syndrome initial presentation]
Qiuyi Qu1, Xingyu Wang, Lianghong Teng
1Department of Otorhinolaryngology-Head and Neck Surgery, Xuanwu Hospital, Capital University of Medical Science, Beijing, 100053, China.
Objective:
Although rare, invasive rhino-orbital-skull base aspergillosis usually is fatal and necessitates prompt diagnosis, surgical intervention and antifungal treatment.
Method:
A case series of 5 patients, with review of treatments and outcomes.
Result:
Five patients initially presented with orbital apex syndrome without apparent rhino-sinus disease. Histologic examination revealed invasive aspergillosis. Four patients underwent transnasal endoscopic surgical exploration of rhino-orbital-skull base, and three of them simultaneously underwent optic nerve decompression. One patient underwent the rhinopharyngeal biopsy. Following surgical debridement and antifungal drug, Two patients achieved various degree of recovery, 1 patient (case 5) showed vision improvement, from counting fingers to 0.1 and symptom-free during 65 months follow-up. One patient (case 1) showed no recovery of vision from no light perception, but symptom-free during 43 months follow-up. Other three patients respectively died of massive intracranial spread (case 3), postoperative brainstem hemorrhage (case 2) and sepsis (case 4).
Conclusion:
Invasive sino-orbital-skull base aspergillosis often may resemble inflammatory conditions. Early diagnosis and surgical intervention are required to improve vision and survival. The endoscopic surgical exploration and biopsy often are necessary to rule out fungal sinus infection before considering steroid use, especially in immunocompromised individuals. The patients with invasive rhino-orbital-skull base aspergillosis usually have a poor prognosis.
Related Concept Videos
Brain Abscess l: Introduction
Cryptococcal Meningitis
Cranial Bones: Lateral View
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...