Characteristics of patients with head and neck squamous cell carcinoma and an esophageal second primary tumor, detected during endoscopic screening.
tumor, head and neck squamous cell carcinoma, dysplasia, avascular, upper gastrointestinal tract
PRIMARY TUMOR, TUMOR, DYSPLASIA, OESOPHAGEAL SQUAMOUS CELL CARCINOMA
HNSCC, head and neck squamous cell carcinoma; SPT, second primary tumor; U/wk, units/week; PY, pack years; TN, tumor, node; IPCL, intrapapillary capillary loops according to the Japanese Esophageal Society classification; AVA, avascular areas; Tx, treatment; HGD, high grade dysplasia; EMR, endoscopic mucosal resection; endo, endoscopic; FU, follow-up; ESD, endoscopic submucosal dissection; CRT, chemoradiotherapy; ESCC, esophageal squamous cell carcinoma; RT, radiotherapy.In the previously published synchronous screening study [3], the grade of dysplasia was reported as low grade dysplasia. Pathological re-assessment was performed by three expert pathologists after 1 year and revealed HGD.Only the characteristics of the first SPT in the upper gastrointestinal tract are shown for this patient.