Lund-Mackay CT Sinus Score
Lund-Mackay CT sinus score (Lund & Mackay 1993): 5 sinus systems scored 0/1/2 per side plus the ostiomeatal complex; total 0-24, higher = more radiologic sinus disease.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Maxillary (R)
- 2
- Anterior ethmoid
- 1
- Ostiomeatal complex occluded, right
- Yes
- Maxillary (L)
- 1
Result: Lund-Mackay CT score 6 of 24 — higher = more radiologic sinus disease.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- 0-24
- 5 sinus systems x 0-2 per side + OMC 0/2 per side; higher = more radiologic sinus disease. A staging score, not a diagnosis.
What you enter
- Maxillary (R)
- Anterior ethmoid (R)
- Posterior ethmoid (R)
- Sphenoid (R)
- Frontal (R)
- Maxillary (L)
- Anterior ethmoid (L)
- Posterior ethmoid (L)
The other 4 fields
- Sphenoid (L)
- Frontal (L)
- Ostiomeatal complex occluded, right
- Ostiomeatal complex occluded, left
How this is calculated
Lund VJ, Mackay IS. Staging in rhinosinusitis. Rhinology. 1993;31(4):183-184. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.