Myoepithelioma of the Soft Palate: a Case Report Giving Special Attention to the Differential Diagnosis

Abstract

ObjectivesThe aim of this pilot study was to evaluate the effectiveness of cutting needle biopsy in the diagnosis of solid oral lesions.Material and MethodsThe biopsies were carried out on seven patients who presented with solid oral lesions with sizes ranging from 2 to 6 cm. Specimens were obtained from each lesion before conventional biopsies using a cutting needle with 18-gauge x 9 cm (MD TECH, Gainesville, FL, USA). A total of 64 specimens processed by hematoxylin-eosin staining method, were obtained. Afterwards, the analysis was performed by an oral pathologist, in two different stages, with and without the clinical history of each lesion. Then, these answers were compared with the final histological diagnosis.ResultsResults presented by the descriptive analysis showed that the correct diagnosis using cutting needle biopsy without the clinical history of lesions was registered in 37.5% of cases, while with the clinical history in 76.6%.ConclusionsDespite the promising results as a potential technique for biopsies and histological diagnosis of oral lesions, the cutting needle biopsy should be analyzed carefully in those cases.

Tru-cut needle biopsy: A novel approach in the diagnosis of solid oral pathologies

“…Hoffman was to report a tru-cut needle biopsy in 1931. [ 1 ] Traditional biopsy, cautery, suction, or “punches” were satisfactory at the time, but they had significant drawbacks, such as increased trauma and occasionally insufficient material for microscopic study. The tru-cut needle biopsy procedure is a novel minimally invasive technique, on the other hand, was a faster, safer, and less morbid technique that could be done under local anaesthetic and provided a tissue sample for a good histological diagnosis.…”

“…Cemento-ossifying fibroma is an odontogenic tumour under the category of fibro-ossifying lesions which are characterized by replacing normal health fibrous architecture with collagen and fibroblast-containing calcified tissue. Cemento-ossifying fibroma was initially classified as a fibro-osseous neoplasm according to World Health Organization (WHO),[ 1 2 ] whereas later in 1972, ossifying fibroma (OF) and cementifying fibroma was considered to be a tumour of the bone origin and odontogenic origin, respectively. [ 3 ] But WHO in the year 1992 classified these for the final time under the same category of the common denomination as cements-ossifying fibroma and its histological variants.…”