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Table 1 Characteristics of superficial HNSCC (n = 17) and lesions (n = 20) in high-risk patients who had prior or present HNSCC and ESCC

From: Natural history of superficial head and neck squamous cell carcinoma under scheduled follow-up endoscopic observation with narrow band imaging: retrospective cohort study

Sex, n (%)
 Men 17 (100)
 Women 0 (0)
Age, median (range), years 69 (52–86)
Synchronous cancer, n (%)
 HNSCC 7 (41)
 ESCC 7 (41)
Prior cancer, n (%)
 HNSCC 7 (41)
 ESCC 8 (47)
Lesion size, median (range), mm 10 (3–20)
Macroscopic type, n (%)
 Type 0-IIa 8 (40)
 Type 0-IIb 10 (50)
 Type 0-IIc 1 (5)
 Type 0-IIa + 0-I 1 (5)
Location, n (%)
 Oropharynx 3 (15)
 Hypopharynx 12 (60)
 Larynx 5 (25)
  1. HNSCC head and neck squamous cell carcinoma, ESCC esophageal squamous cell carcinoma