Etiology and familial inheritance of pleomorphic adenomas

Authors

  • Krysten Clark University of Pittsburgh, School of Dental Medicine

DOI:

https://doi.org/10.5195/d3000.2017.70

Keywords:

Pleomorphic Adenoma, Carcinoma ex Pleomorphic Adenoma, PLAG1

Abstract

Background: A pleomorphic adenoma is the most common salivary gland neoplasm in both children and adults. Pleomorphic adenomas are derived from ductal and myoepithelial cells and are most commonly found in the superficial lobe of the parotid gland. The purpose of this article is to discuss the genes involved in pleomorphic adenomas and the possible autosomal dominant mode of inheritance. Case Description: The first patient was a white male who was diagnosed with carcinoma ex pleomorphic adenoma, a highly aggressive tumor, at the age of 57. He had an undiagnosed pleomorphic adenoma for approximately 15 years prior. The tumor was excised and the patient underwent radiation in the location of his parotid gland for 4 years until he deceased. The second patient is a white female, his daughter, who was diagnosed with a benign pleomorphic adenoma at the age of 46. Her salivary gland tumor was excised and normal follow up appointments occurred. Practical Implications: Pleomorphic adenomas most commonly affect the parotid gland, the largest of the three major salivary gland tumors. Occurrence and excision of this salivary gland tumor will cause a decrease in the secretion of saliva, leading to a dry mouth and an increased risk of caries.

Author Biography

Krysten Clark, University of Pittsburgh, School of Dental Medicine

University of Pittsburgh School of Dental Medicine

References

PLAG1 gene alterations in salivary gland pleomorphic adenoma and carcinoma ex-pleomorphic adenoma: a combined study using chromosome banding, in situhybridization and immunocytochemistry. Martins C, Fonseca I, Roque L, Pereira T, Ribeira C, Bullerdiek J, Soares J. Modern Pathology. 2005; 18:1048–1055. 6 May 2006. PMID: 15920557.

Salivary gland tumors in survivors of childhood cancer. Whatley WS, Thompson JW, Rao B. 2006 March; 124 (3):385-388. PMID: 16500432

Smoking and risk of parotid gland tumors: a nationwide case-control study. Sadetzki S, Oberman B, Mandelzweig L, Chetrit A, Ben-Tal T, Jarus-Hakak A, Duvdevani S, Cardis E, Wolf M. 2008 May 1; 112(9): 1974-82. PMID: 18361448

Simian Virus 40 Sequences and Expression of the Viral Large T Antigen Oncoprotein in Human Pleomorphic Adenomas of Parotid Glands. Martinelli, M, Martini, F, Rinaldi, E, Caramanico, L, Magri, E, Grandi, E, Carinci F, Pastore A, Tognon, M. 2002 Oct; 161(4): 1127–1133. PMID: PMC1867276

Conserved mechanism of PLAG1 activation in salivary gland tumors with and without chromosome 8q12 abnormalities: identification of SII as a new fusion partner gene. Astrom AK, Voz ML, Kas K, Roijer E, Wedell B, Mandahl N, Van de Ven W, Mark J, Stenman G. 1999 Feb 15; 59(4): 918-923. PMID 10029085

Lodish H, Berk A, Zipursky SL, Matsudaira P, Baltimore D, Darnell J (2000) Molecular Cell Biology. New York: W. H. Freeman.

PLAG1 gene alterations in salivary gland pleomorphic adenoma and carcinoma ex-pleomorphicadenoma: a combined study using chromosome banding, in situ hybridization and immunocytochemistry. Martins C, Fonseca I, Roque L, Pereira T, Ribeiro C, Bullerdiek J, Soares J. 2005 Aug; 18(8): 1048-1055. PMID: 15920557

Aberrant PLAG1 expression in pleomorphic adenomas of the salivary gland: a molecular genetic and immunohistochemical study. Matsuyama A, Hisaoka M, Nagao Y, Hashimoto H. 2011 May; 458(5): 583-92. PMID 21394649

Mucin expression in pleomorphic adenoma of salivary gland: a potential role for MUC1 as a marker to predict recurrence. Hamada T, Matsukita S, Goto M, Kitajima S, Batra S K, Irimura T, Sueyoshi K, Sugihara K, Yonezawa S. 2004; 57(8), 813–821. PMID PMC1770389

Downloads

Published

2017-06-14

Issue

Section

Mechanisms of Oral Disease