Thyroid fine-needle aspiration reporting rates and outcomes before and after Bethesda implementation within a combined academic and community hospital system.

Context: The current study compares data from our hospital system before and after the 2008 implementation of the Bethesda System for Reporting Thyroid Cytology (BSRTC).

Objective: To show the effects the BSRTC has had on the reporting rates and outcomes for thyroid lesions.

Design: A search for thyroid fine-needle aspiration biopsies (FNABs) was performed for 2002-2005 (before BSRTC) and 2009-2011 (after BSRTC).

Diagnostic pitfalls of Hashimoto's/lymphocytic thyroiditis on fine-needle aspirations and strategies to avoid overdiagnosis.

Objective: The importance of identifying papillary carcinoma or lymphoma amidst background Hashimoto's/lymphocytic thyroiditis (H/LT) is well documented. However, avoidance of overdiagnosing neoplasms on thyroid fine-needle aspiration (FNA) with only H/LT has not been adequately addressed.

Study Design: This study aimed to identify cytomorphologic features leading to overdiagnosing neoplasms within background H/LT.

Disseminated blastomycosis diagnosed by fine-needle aspiration of the thyroid.

Blastomycosis is an uncommon disease caused by the dimorphic fungus Blastomyces dermatitidis. It can manifest as chronic pulmonary symptoms or disseminated disease. Only three previous cases of blastomycosis involving the thyroid have been reported, of which two were diagnosed by fine-needle aspiration.

Diagnostic utility of P504S/p63 cocktail, prostate-specific antigen, and prostatic acid phosphatase in verifying prostatic carcinoma involvement in seminal vesicles: a study of 57 cases of radical prostatectomy specimens of pathologic stage pT3b.

Context: Seminal vesicle invasion by prostatic carcinoma is directly associated with tumor staging; verification is challenging when the tumor demonstrates cribriform or papillary growth patterns or there are back-to-back small-gland proliferations. P504S is overexpressed in prostatic carcinoma and high-grade prostatic intraepithelial neoplasia with cytoplasmic immunoreactivity. p63 has positive immunoreactivity in basal cell nuclei of benign prostatic glands.