Risk of Parathyromatosis after Fine-Needle Aspiration

Kendrick, Michael L.; Charboneau, J. William; Curlee, Kathleen J.; Van Heerden, Jon A.; Farley, David R.
March 2001
American Surgeon;Mar2001, Vol. 67 Issue 3, p290
Academic Journal
Reoperative surgery for hyperparathyroidism (HPT) is fraught with hazard. When preoperative imaging studies are inconclusive or patient comorbidities are extensive fine needle-aspiration (FNA) is helpful to confirm the presence of suspected parathyroid tissue in the neck. Some surgeons refrain from using FNA because of the concern of tissue implantation (parathyromatosis). A retrospective review (1984–1996) of all patients diagnosed with HPT undergoing FNA of suspected parathyroid tissue was performed to document whether a correlation exists between FNA of suspected parathyroid tissue and subsequent development of parathyromatosis. Parathyromatosis was considered to have occurred when proven by histology or suspected on the basis of clinical studies. Of 81 patients with HPT undergoing ultrasound-guided FNA to assess abnormalities in the neck 41 patients with confirmed parathyroid tissue were identified. The indications for FNA in these 41 patients were: prior failed cervical exploration (n = 33), prior neck surgery and/or radiation (n = 2), inconclusive noninvasive imaging studies (n = 15), and severe comorbidities (n = 8). Mean follow-up was 5.8 years. No case of FNA-induced parathyromatosis was identified. FNA is useful to confirm the presence of parathyroid tissue in very select patients with hyperparathyroidism. FNA often eliminates the need for other imaging studies, may prevent a needless or likely fruitless re-exploration, and does not cause parathyromatosis.


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