Related Experiment Video
Updated: May 20, 2026
09:53
Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
Published on: July 5, 2021
Aneurysmal bone cyst of the ethmoid sinus: A case report
Nitin Raj Sinha1, Wojciech Szmigielski, Maneesh Khanna
1Department of Radiology, Hamad Medical Corporation, Al Amal Hospital, Doha, Qatar.
Polish Journal of Radiology
|July 18, 2012
Summary
Aneurysmal bone cysts (ABCs) are rare in the ethmoid bone. Imaging like MRI and CT can help diagnose this benign bone lesion in this unusual facial location.
Area of Science:
- Otorhinolaryngology
- Radiology
- Pathology
Background:
- Aneurysmal bone cysts (ABCs) are benign, expansile bone lesions typically found in long bones.
- ABCs are uncommon in facial bones and exceptionally rare in the ethmoid bone, with only ten prior cases reported.
- This study focuses on a case of ABC in the ethmoid bone, highlighting its rarity and diagnostic challenges.
Observation:
- A young adolescent presented with decreased vision and right eye pain.
- MRI revealed an expansile, multiloculated lesion in the right ethmoid bone with fluid levels, extending into the orbit.
- CT imaging provided detailed bone characterization.
Findings:
- Histopathological examination of biopsy and resected tissue confirmed the diagnosis of aneurysmal bone cyst.
- The lesion's characteristic appearance on MRI and CT facilitated confident diagnosis.
Implications:
- This case underscores the importance of considering ABCs in the differential diagnosis of ethmoid bone lesions, despite their rarity.
- Advanced imaging techniques (MRI and CT) are crucial for accurate diagnosis of ABCs in rare anatomical locations.
- Early and accurate diagnosis is essential for appropriate management and to prevent potential complications such as vision loss.
Related Concept Videos
01:27Cranial Bones: Lateral View
The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
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...
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...
01:26Brain Abscess l: Introduction
A brain abscess is a focal, intracerebral infection characterized by a localized collection of pus within the brain parenchyma, resulting from microbial invasion and the body’s inflammatory response. It progresses through stages: early and late cerebritis, followed by early and late capsule formation, reflecting tissue destruction, immune response, and eventual encapsulation.Etiology and PathogenesisCausative organisms vary with source and host factors, often involving polymicrobial infections,...
01:21Aneurysm II: Clinical Manifestations and Diagnostic Studies
Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...