biopsy of esophagus: squamous cell carcinoma in situ with questionable stromal invasion
biopsy of esophagus: squamous cell carcinoma in situ with questionable stromal invasion
biopsy of esophagus: squamous cell carcinoma in situ with questionable stromal invasion (procedure)
biopsy of esophagus: squamous cell carcinoma in situ with questionable stromal invasion (procedure)