This review summarizes the changes in the 5th edition of the WHO Classification of Endocrine
and Neuroendocrine Tumors that relate to the thyroid gland. The new classification has …

Objective: We aimed to investigate the validity of the Bethesda System for Reporting Thyroid
Cytopathology (TBSRTC) through meta-analysis. Study Design: All publications between …

… Anderson SR, Mandel S, LiVolsi VA, Gupta PK, Baloch ZW. Can cytomorphology differentiate
between benign nodules and tumors arising in Graves’ disease? Diagn Cytopathol 2004;…

Importance Although growing evidence points to highly indolent behavior of encapsulated
follicular variant of papillary thyroid carcinoma (EFVPTC), most patients with EFVPTC are …

Background Approximately 15 to 30% of thyroid nodules evaluated by means of fine-needle
aspiration are not clearly benign or malignant. Patients with cytologically indeterminate …

… E-mail: baloch@mail.med.upenn.edu Received 22 June 2001; Accepted 11 August 2001 …
Lee A, LiVolsi VA, Baloch ZW. Expression of DNA topoisomerase II alpha in thyroid neoplasia. …

On October 22 and 23, 2007, the National Cancer Institute (NCI) hosted" The NCI Thyroid
Fine Needle Aspiration (FNA) State of the Science Conference," a two-day gathering in …

Fine‐needle aspiration (FNA) has proven to be a safe, economical, accurate, and rapid
diagnostic technique. A successful FNA requires a specimen with adequate cellularity, high‐…

Importance Approximately 20% of fine-needle aspirations (FNA) of thyroid nodules have
indeterminate cytology, most frequently Bethesda category III or IV. Diagnostic surgeries can be …

This review focuses on follicular-patterned lesions of the thyroid gland and their differential
diagnosis. Included are a discussion of the features differentiating follicular adenoma from …