Incidence and histopathological behavior of papillary microcarcinomas: study of 429 cases.

CONCLUSIONS: In this study, PMC was found in 49.9 percent of patients, which, to our knowledge, is higher than any other reported incidence. A threshold of >/=4 mm was more significant than 5 mm for carrying increased risk for extrathyroidal spread. There was no significant difference in PMC incidence in patients with malignant vs benign disease.
PMID: 18984270 [PubMed - in process] (Source: Otolaryngology - Head and Neck Surgery)