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Table 7 Acute toxicities RTOG (Radiation Treatment Oncology Group) grades for lesions treated with IGSRT (Image-Guided Superficial Radiation Therapy) [8]

From: Updated results of 3,050 non-melanoma skin cancer (NMSC) lesions in 1725 patients treated with high resolution dermal ultrasound-guided superficial radiotherapy, a multi-institutional study

RTOG

Number of Lesions (n = 2,310)*

0

1

1

1818

2

471

3

16

4

4

  1. *Certain study locations did not maintain a procedure to record RTOG toxicity grades for IGSRT patients in the initial study year(s), accounting for the missing values on this measure of safety.