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Litigation in thyroid cytology and histopathology in England: a very brief overview.

This brief review discusses legal issues in thyroid cytology and histopathology in England. The principal risks in thyroid cyto/histopathology are either underdiagnosis of a malignant condition as benign, overdiagnosis of a benign condition as malignant, or the failure to recognise or the overdiagnosis as malignant of a benign or inflammatory condition. There are multiple diagnostic pitfalls in both cytology and histopathology and these are reasonably well documented. The interobserver reproducibility as assessed by kappa statistics of some of the major criteria for malignancy, specifically papillary-type nuclei in the diagnosis of papillary thyroid carcinoma, capsular invasion or vascular invasion are comparatively poor hence diagnoses of well differentiated papillary or follicular carcinoma may often be to some extent subjective. This article reviews the current legal situation in England discussing recent legal case precedents with a suggestion for improving communication and the preoperative consent process for patients.