Background: The relationship between esophageal squamous cell carcinoma (ESCC) and Lugol-voiding lesions (LVLs) in patients with head and neck squamous cell carcinoma (HNSCC) is unclear.
Aim: To investigate the characteristics of ESCC and the relationship between ESCC and LVLs in patients with HNSCC.
Methods: Between 2003 and 2006, 157 patients with primary HNSCC underwent Lugol chromoendoscopy at the Hiroshima University Hospital, Hiroshima, Japan. Of the patients, 135 were followed up for more than 6 months. We retrospectively analyzed the incidence of synchronous and metachronous ESCC and cumulative proportions of patients without metachronous ESCC with or without multiple LVLs.
Results: Synchronous and metachronous ESCC were detected in 17 of 157 (10.8%) and 9 of 135 (6.7%) patients, respectively. The incidence of synchronous and metachronous ESCC was significantly higher in patients with LVLs compared with the incidence in those without LVLs [13 of 32 (40.6%) vs. 4 of 125 (3.2%), P<0.0001 and 8 of 19 (42.1%) vs. 1 of 116 (0.9%), P<0.0001, respectively]. Cumulative proportions of patients without metachronous ESCC were significantly lower in patients with multiple LVLs compared with that in those without multiple LVLs (P<0.0001).
Conclusions: Patients who had HNSCC, especially those with multiple LVLs in the esophagus, should be followed with close endoscopic observation with Lugol chromoendoscopy.