Lund-Kennedy Endoscopic Score (Rhinosinusitis)
Lund-Kennedy endoscopic score for chronic rhinosinusitis (Lund-Kennedy 1997; modified Psaltis 2014).
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Polyps, left
- 2 — beyond middle meatus
- Polyps, right
- 1 — confined to middle meatus
- Edema, left
- 1 — mild
- Edema, right
- 1 — mild
- Discharge, left
- 1 — clear / thin
- Discharge, right
- 0 — none
Result: Lund-Kennedy modified 6/12.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Per side, 0-2 each
- polyps (0 absent, 1 middle meatus, 2 beyond), edema (0-2), discharge (0 none, 1 clear, 2 purulent).
- Modified 0-12
- polyps + edema + discharge, both sides — the reliable general-use score (correlates with SNOT-22).
- Original 0-20
- adds scarring + crusting (post-op findings, optional). Higher is worse; no validated severity cutoff.
What you enter
- Polyps, left (0 absent, 1 middle meatus, 2 beyond)
- Polyps, right (0-2)
- Edema, left (0 absent, 1 mild, 2 severe)
- Edema, right (0-2)
- Discharge, left (0 none, 1 clear, 2 purulent)
- Discharge, right (0-2)
- Scarring, left (post-op, optional; default 0)
- Scarring, right (post-op, optional; default 0)
The other 2 fields
- Crusting, left (post-op, optional; default 0)
- Crusting, right (post-op, optional; default 0)
How this is calculated
Lund VJ, Kennedy DW. Staging for rhinosinusitis. Otolaryngol Head Neck Surg. 1997;117(3 Pt 2):S35-S40; Psaltis AJ, Li G, Vaezeafshar R, Cho KS, Hwang PH. Modification of the Lund-Kennedy endoscopic scoring system. Laryngoscope. 2014;124(10):2216-2223. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.