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World Journal of Surgery
Published in: World Journal of Surgery 5/2008

Open Access 01-05-2008

Papillary Microcarcinoma

Authors: Shiro Noguchi, Hiroto Yamashita, Shinya Uchino, Shin Watanabe

Published in: World Journal of Surgery | Issue 5/2008

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Abstract

Background

Papillary microcarcinoma (PMC) is increasing in incidence because of diagnosis by ultrasound-guided fine-needle aspiration cytology.

Methods

Between January 1966 and December 1995, we treated 6019 patients with papillary cancer; among them, 2070 patients with PMC were studied.

Results

PMC is essentially very similar to papillary cancer that is 11 mm or larger and has a very good prognosis. Smaller tumors and younger patients have a better prognosis. Among PMC, larger tumors (6–10 mm) recur in 14% at 35 years compared with 3.3% in patients with smaller tumors. Patients older than 55 years have recurrence in 40% at 30 years, with a worse prognosis than younger patients who have a recurrence rate of less than 10%. Extracapsular invasion by the primary tumor also has a higher recurrence rate. The majority of recurrences are in the neck. Therefore, annual ultrasound of the neck is effective for recurrence surveillance.

Conclusion

Papillary microcarcinoma is similar to larger papillary carcinomas with tumor characteristics and age-based recurrence rate that extends for many years, justifying long surveillance after surgery.
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Metadata
Title
Papillary Microcarcinoma
Authors
Shiro Noguchi
Hiroto Yamashita
Shinya Uchino
Shin Watanabe
Publication date
01-05-2008
Publisher
Springer-Verlag
Published in
World Journal of Surgery / Issue 5/2008
Print ISSN: 0364-2313
Electronic ISSN: 1432-2323
DOI
https://doi.org/10.1007/s00268-007-9453-0

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