Intraoral lipomas: A clinicopathological study of 43 cases, including four cases of spindle cell/pleomorphic subtype

Abstract

Background: The purpose of this cross-sectional study was to evaluate radiologically, the relation between the distance from the cementoenamel junction (CEJ) to the facial bone crest (FBC), and the facial alveolar bone (FAB) width at maxillary anterior teeth. A further aim was to assess if the CEJ-FBC distance had an impact in the prevalence to find a FAB thickness greater than one mm. Study design: CBCT images were retrospectively obtained from the database of the Oral Surgery Unit of the University of Valencia. The teeth were divided in 3 groups according to the CEJ-FBC distance: Shorter (≤3mm), Middle (>3 ≤4.5 mm) and Larger (>4.5 mm). FAB thickness was measured by two different examiners at 1, 2 and 3 mm apical to the FBC. Normality of means were evaluated by Kolmogorov-Smirnov test and an ANOVA-type linear model was performed. Results: 82 patients were included in the study, with 156 central incisors, 149 lateral incisors and 152 canines analyzed. A significant greater FAB thickness in Shorter (≤3mm CEJ-FBC) than Middle and Larger group was observed in all distances measured apical to the FBC. There was a significant inverse relation between the distance CEJ-FBC and FAB thickness at all distances measured. The prevalence of a FAB thickness equal or greater than one mm was 35.9% of all teeth analyzed from Shorter, 17.4% of Middle and 8.9% of Larger group at 1 mm apical to the FBC. Rojo-Sanchis J, Peñarrocha-Oltra D, Peñarrocha-Diago M, Zaragozí-Alonso R, Viña-Almunia J. Relation between the distance from the cementoenamel junction to the bone crest and the thickness of the facial bone in anterior maxillary teeth: A cross-sectional tomographic study. Med Oral Patol Oral Cir Bucal. 2019 May 1;24 (3):e409-15.

Intraoral soft tissue lipomas: clinicopathological features from 91 cases diagnosed in a single Oral Pathology service

“…Mean size ranges from 1.1 to 3.0 cm and they are virtually always asymptomatic ( 1 , 4 , 5 , 7 , 8 , 10 , 12 , 14 ). Although there seems to be no gender predilection for intraoral lipomas, most studies show a female ( 1 , 3 , 5 , 6 - 8 , 12 , 13 ) rather than male ( 2 , 4 , 9 , 11 ) predilection. Mean age of the affected patients is usually on the 6th to 7th decades of life and most patients are in their fourties to sixties ( 1 , 3 - 12 , 14 ).…”

Angiofibrolipoma of the soft palate: A very rare cause of upper air way obstruction in an infant.

“…Lipomas can be histologically classified into different types depending on the admixture of mesenchymal elements such as fibrolipomas, fibromyolipomas, osteolipoma, intramuscular lipoma, angiolipoma, salivary gland lipoma, spindle cell/ pleomorphic lipoma, chondrolipoma or myxoid lipoma 1,2,4,6,8 . Lipomas and fibrolipomas account for approximately 80% of all lipomas, followed by intramuscular lipomas and spindle cell lipomas 1,2,12 . One of the rarest of the variants is angiofibropilopma which was initially grouped under harmatoma 11 .…”

“…One of the rarest of the variants is angiofibropilopma which was initially grouped under harmatoma 11 . Kershisnik et al in 1986, described the first case of angiofibrolipomas which contained fat cells, blood vessels, and connective tissue 12 .…”

“…The aetiology of lipomas remains elusive till date [1][2][3]11,12 . Different theories of differentiation of multi-potent mesenchymal cells in fat tissue, cartilage and bone, to metaplasia of a preexisting lipoma are described 2 .…”

“…Surgical excision is the treatment of choice for lipomas and pedunculated lesions are easy to excise [1][2][3] . Recurrence after surgical excisions are very rare for oropharangeal lipomas as compared to the deep lipomas which have a recurrence rate of 30% to 50%, probably because of the difficulty of complete surgical removal 1,3,12 .…”