Zheng M, Plonowska KA, Strohl MP, Ryan WR. Surgeon-performed ultrasound for the assessment of parotid masses.
Am J Otolaryngol 2018;
39:467-471. [PMID:
29778636 DOI:
10.1016/j.amjoto.2018.04.011]
[Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 04/06/2018] [Accepted: 04/14/2018] [Indexed: 11/17/2022]
Abstract
BACKGROUND
Studies on parotid gland ultrasound assessments performed specifically by surgeons are seldom reported.
METHODS
Retrospective series of a single academic surgeon experience, analyzing 70 new parotid masses with evaluable preoperative SP-US characteristics, location measurements, and perioperative events.
RESULTS
31/70 masses were malignant. SP-US characteristics significantly associated with both malignancy and positive margins included extraparenchymal extension, irregular borders, hypervascularity, infiltration, and the lack of deep enhancement. The larger the skin-to-deep-aspect-of-tumor distance, the more likely the tumor was deep to FN. For the 39 cytologically benign tumors, neither CT nor MRI provided additional information to change management except for full delineation of parapharyngeal space extension in 2 cases.
CONCLUSION
SP-US can help predict parotid mass benignity/malignancy, positive margin risk, and tumor relation to FN. SP-US may be used as the sole imaging in cytologically benign tumors unless the deep tumor extent cannot be identified.
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