Keywords:
Neoplasia, Inflammation, Biopsy, Ultrasound, PET-CT, Salivary glands
Authors:
C. Vilches Catalan, S. De Águeda, M. D. Montero, C. Martín-Hervás, A. Santiago Hernando, J. I. Rodríguez Martín; Madrid/ES
DOI:
10.26044/ecr2019/C-1303
Methods and materials
Patient population: Retrospective observational analyses of patients were referred after physical examination by specialist or after visualization of the nodule by other imaging techniques.
In total 83 patients from our hospital with nodular lesions in major salivary glands (submaxillary or parotid) Period: November 2015 to November 2017.
Data acquisition: All patients underwent ultrasonography (with high frequency transducers,
12 MHz) of both parotids and submaxillary glands with acquisition of images in at least two perpendicular planes of the study lesion,
as well as Doppler US study.
All biopsies were performed by two radiologists with more than 30 years of experience performing US-guided FNAC.
The lesion to be biopsied was localized by using a linear transducer (12 MHz).
The area was sterilized by using povidone-iodine solution.
It was used a 25-gauge needle.
The specimen from each pass was extruded onto a glass slide and smeared with a second slide in the conventional manner by a pathologist.
Data analysis: The images were reviewed retrospectively by a third-year radiology resident.
The reviewer was blinded to the original radiology report,
and the final result (cytology).
Different variables were analyzed: age,
sex,
validity of cytological sample,
history of oncological disease,
previous PET-CT,
nodular echographic pattern (homogeneous or heterogeneous solid,
cystic and solid-cystic) and cytological diagnosis.
Statistical analysis: IBM SPSS Statistics was used to obtain results and statistical analysis.
The statistical test that was used to analyze the relationship between the variables studied was the Chi-square technique and the degree of significance established (p) to reject the null hypothesis was 0.05.