Impact of Anatomical Location on Stage Requirements in Mohs Micrographic Surgery: A Retrospective Cross-Sectional Study of 501,209 Cases Using TriNetX (2004–2024)

SKIN The Journal of Cutaneous Medicine 2026 Open access

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Authors: Travis S. Dowdle, Ryan G. Koch, Corley C. Pruneda, Juan Pinto-Cuberos, Renat Ahatov, Frank T. Winsett, Richard F. Wagner
DOI: 10.25251/04ybey79
Cited by: 0
References: 4

Abstract

Objective To analyze the number of stages required for tumor clearance in Mohs micrographic surgery (MMS) by anatomical location and diagnosis. Methods The number of stages required for tumor clearance in Mohs micrographic surgery (MMS) varies by anatomical location and diagnosis. This study analyzed 501,209 MMS cases from the TriNetX database. Cases were categorized using CPT codes (single-stage: 17311/17313, multi-stage: 17312/17314) and linked to anatomical sites via ICD-10 codes. Tumors were stratified into non-melanoma skin cancer subtypes: squamous cell carcinoma in situ, basal cell carcinoma, and squamous cell carcinoma. Results Tumors on the ears required more stages across all subtypes (P

Fields of Study & Subjects

Nonmelanoma Skin Cancer Studies Cutaneous Melanoma Detection and Management Cancer and Skin Lesions

Publication details

Journal / source
SKIN The Journal of Cutaneous Medicine
Volume
10
Issue
1
Pages
2878–2887
Publication date
13 January 2026