Regenerative atypical squamous metaplasia in fibreoptic bronchial biopsy sites--a lesion liable to misinterpretation as carcinoma on rebiopsy: report of 5 cases.

Regenerative atypical squamous metaplasia at the site of a previous bronchial biopsy can be mistaken for carcinoma on rebiopsy. Five cases are reported, in three of which an erroneous diagnosis of squamous cell carcinoma led to unnecessary surgical resection.