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Related Experiment Videos

Lymphocytic infiltration in pediatric thyroid carcinomas.

H Van Savell1, Stephen M Hughes, Charles Bower

  • 1Department of Pathology, Arkansas Children's Hospital, 800, Little Rock, AR 72202, USA. vansavelljr@yahoo.com

Pediatric and Developmental Pathology : the Official Journal of the Society for Pediatric Pathology and the Paediatric Pathology Society
|November 18, 2004
PubMed
Summary

Pediatric follicular thyroid carcinomas are more frequently associated with lymphocytic infiltrates than papillary thyroid carcinomas. This finding highlights a potential link between thyroiditis and specific thyroid cancer types in children.

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Area of Science:

  • Endocrinology
  • Pediatric Oncology
  • Surgical Pathology

Background:

  • Lymphocytic thyroiditis is linked to increased papillary thyroid carcinoma incidence in some studies.
  • The relationship between thyroiditis and follicular thyroid carcinoma, particularly in pediatric cases, is less understood.
  • Previous observations of pediatric follicular thyroid carcinomas with lymphocytic infiltrates prompted further investigation.

Purpose of the Study:

  • To examine the association between lymphocytic infiltrate and pediatric thyroid carcinomas.
  • To compare the prevalence of lymphocytic infiltrates in pediatric follicular versus papillary thyroid carcinomas.
  • To investigate the nature of the lymphocytic infiltrate using immunohistochemistry.

Main Methods:

  • Retrospective review of primary malignant thyroid neoplasms from surgical files (1984-2000).

Related Experiment Videos

  • Analysis of ten pediatric thyroid carcinoma cases (six papillary, four follicular).
  • Routine immunohistochemistry to characterize lymphocytic infiltrates (B cells, T cells).

    • Main Results:

    • All four pediatric follicular carcinomas exhibited a lymphocytic infiltrate.
    • Four of seven pediatric papillary carcinomas showed an associated lymphoid infiltrate.
    • Lymphocytic infiltrates were present bilaterally, adjacent to and separate from tumors; T cells were widespread, B cells less common.

    Conclusions:

    • Pediatric follicular thyroid carcinomas are more commonly associated with lymphocytic infiltrates than pediatric papillary carcinomas.
    • The findings suggest a stronger association between thyroiditis and follicular thyroid carcinoma in the pediatric population.
    • Further research is warranted to elucidate the specific mechanisms underlying this association.