Fine-Needle Aspiration Utilization for Malignant Thyroid Neoplasms in the Community Hospital Setting: A Quality Improvement Study.

BACKGROUND: Thyroid nodules are increasingly common. Although guidelines have been published, it is unclear whether recommendations for the use of fine-needle aspiration (FNA) and ultrasonography are followed. OBJECTIVE: To evaluate the impact of a quality improvement initiative regarding utilization of FNA and ultrasonography before resection of malignant thyroid neoplasms at a community-based hospital. METHODS: A retrospective medical record review of patients who received thyroidectomy with histologically proven malignant thyroid neoplasms at a community-based teaching center in the Midwest in 2014 revealed inconsistent use of FNA and ultrasonography per national guidelines. Thus, a quality improvement initiative was conducted using the PDSA (Plan, Do, Study, Act) method and included both an intradepartmental outreach effort and an interdisciplinary hospital cancer committee presentation. To determine the success of the initiative, medical records were reviewed from January 1, 2015, through July 1, 2016 (after the initiative) and compared with findings from 2014 (before the initiative). RESULTS: The medical records of 366 patients were reviewed over a 2.5-year period, and 23 records (12 in 2014 and 11 in 2015-2016) met the inclusion criteria. In 2014, FNA was performed on 58% of patients before operative management of thyroid malignancy. After the quality improvement initiative, FNA was performed on 100% of patients before operative management of thyroid malignancy (P=.0155). Before the quality improvement initiative, 75% of patients undergoing an operation for malignant thyroid neoplasms underwent preoperative ultrasonography, compared with 100% after the initiative (P=.0753). CONCLUSION: A performance improvement initiative that used the PDSA framework effectively influenced physician adherence to national guidelines for thyroid neoplasms.

Hyalinizing trabecular tumor of the thyroid gland and its significant diagnostic issue.

BACKGROUND: Hyalinizing trabecular tumors (HTT) are rare follicular cell-derived tumors of the thyroid gland that are infrequently reported in otolaryngology literature. We present here an interesting case of HTT which provides the basis for review of this entity's clinical characteristics, criteria useful in making the diagnosis, and any currently available therapeutic modalities. CASE PRESENTATION: A 70-year-old Caucasian female underwent a CT scan of her chest and was incidentally found to have a nodule within the right thyroid lobe. Gross examination of the excised thyroid lobe revealed a circumscribed and encapsulated lesion (tan / gritty in texture), confined to the gland. Histologic sections of the lesion revealed a circumscribed neoplasm with a trabecular and organoid architecture associated with abundant dystrophic calcification. Neoplastic cells showed a spindled morphology with clumped chromatin and ample eosinophilic cytoplasm. CONCLUSIONS: Histologically, HTT is a follicular cell-derived tumor composed of neoplastic cells arranged in a trabecular pattern with hyalinization and calcification of extracellular material. Distinguishing features of HTT include minimal cytologic atypia with a low nuclear: cytoplasmic ratio, cellular aggregates around hyalinized material, and nuclei with clumped chromatin and occasional grooves and/or pseudoinclusions. Though debated in the literature, the general consensus is that this tumor is a benign entity. It is our hope that additional clinical research will elicit awareness of these rare tumors.