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Updated: May 30, 2026

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery

Published on: September 27, 2024

Factors predictive of complex Mohs surgery cases.

Seema Sahai¹, Hobart W Walling

¹Department of Dermatology, University of Iowa, Iowa City, IA 52241, USA.

The Journal of Dermatological Treatment

|July 27, 2011

Summary

Complex Mohs surgery cases are predicted by recurrent or aggressive tumors, larger size, and specific locations like the nose and ear. Understanding these factors aids pre-operative planning for Mohs surgeons.

Area of Science:

Dermatology
Surgical Oncology
Pathology

Background:

Mohs surgery offers tissue-sparing skin cancer excision, minimizing recurrence.
Predictive factors for complex Mohs surgery cases require further study.

Purpose of the Study:

Identify patient, tumor, and surgeon characteristics associated with complex Mohs surgery cases.
Determine factors influencing the need for multiple surgical stages in Mohs procedures.

Main Methods:

Retrospective review of Mohs surgery cases over a 3-year period.
Comparison of cases requiring ≥4 stages (complex) versus ≤3 stages (non-complex).
Analysis of surgical logs from fellowship-trained Mohs surgeons.

Main Results:

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Recurrent tumors (OR 6.88), infiltrative/morpheaform basal cell carcinoma (BCC) (OR 3.0), and tumors >1 cm (OR 2.0) were associated with complexity.
Nose (OR 2.05) and ear (OR 3.0) tumors, particularly on the nasal tip and helix, were more complex.
Complex cases had larger post-operative areas and higher rates of flap/graft repair.

Conclusions:

Mohs surgery complexity is similar in academic and private practice settings.
Pre-operative identification of recurrent/aggressive tumors, larger size, and specific locations (nose, ear) can predict surgical complexity.
This knowledge aids Mohs surgeons in pre-operative case planning.