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Updated: Dec 11, 2025

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Sinonasal Diseases Affecting the Orbit - A Radiological Pattern-Based Approach.

Naren Hemachandran1, Sanjay Sharma1

  • 1Department of Radiodiagnosis, AIIMS, New Delhi, India.

Current Problems in Diagnostic Radiology
|August 24, 2020
PubMed
Summary

Diseases affecting the paranasal sinuses can impact the orbit due to their close proximity. This study classifies these sinonasal-orbital diseases into five radiological patterns to aid diagnosis.

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Area of Science:

  • Radiology
  • Ophthalmology
  • Otorhinolaryngology

Background:

  • The orbit and paranasal sinuses share thin bony walls, increasing susceptibility to disease transmission.
  • Sinonasal pathologies frequently involve the orbit, presenting with orbital symptoms.
  • Disease spread can be contiguous or noncontiguous, involving systemic conditions.

Purpose of the Study:

  • To classify sinonasal diseases with orbital involvement based on radiological patterns.
  • To provide a framework for understanding and diagnosing these conditions.
  • To aid in surgical planning and patient follow-up.

Main Methods:

  • Classification of sinonasal-orbital diseases into five distinct radiological patterns.
  • Pattern 1: Fat stranding predominant.
  • Pattern 2: Soft tissue without bone destruction.
  • Pattern 3: Soft tissue with bone destruction.
  • Pattern 4: Bony pathologies.
  • Pattern 5: Sinus volume changes.

Main Results:

  • Each pattern is characterized by hallmark radiological signs and typical disease examples.
  • The classification highlights the diverse radiological appearances of sinonasal pathologies affecting the orbit.
  • Imaging is crucial for identifying disease origin, complications, and guiding management.

Conclusions:

  • A novel radiological classification system for sinonasal-orbital diseases is proposed.
  • This approach offers a new insight and working algorithm to narrow differential diagnoses.
  • Effective use of imaging facilitates accurate diagnosis and management of these complex conditions.