Pleomorphic adenoma of the palate

Pleomorphic Adenoma of the Oral Cavity: Systematic Review

Pleomorphic adenomas are the most commonly presented salivary gland tumor; however, exact etiologies are unknown. We present a systemic review investigating the demographics, clinical presentations, characteristics, and anatomical locations of oral cavity pleomorphic adenoma. Three electronic databases (PubMed, MEDLINE, and Scopus) and one search engine (Google Scholar) were used to identify studies published in English with no restrictions on the year of publication up to the first week of August 2022. Studies retrieved from the literature involved clinical presentations, characteristics, and anatomical locations of oral cavity pleomorphic adenoma, data presented as frequencies and percentages. Our systematic review included 71 studies out of 2110 identified. Pleomorphic adenoma in the oral cavity was found more commonly in females [1508 (42.9%)] than males, with an age range of 6-83 years. The most common tumor location was the palate, followed by the lips; the jaw was the least common location identified. Most cases were not characterized of having a pleomorphic adenoma [(2,918 (83%))]. The most commonly mentioned characteristic was a painless mass [(561 (16%))] and the least common characteristics were dysphagia, change in sensation, and ill-fitting prosthesis. Pleomorphic adenoma of the oral cavity can have many presentations. In any oral cavity mass, pleomorphic adenoma should be included in the differential diagnosis and a complete surgical excision preferred treatment.

Management of a giant pleomorphic adenoma of the soft palate: A case report

Key Clinical Message

Benign mixed salivary gland tumor is comprised of epithelial and myoepithelial cells and represents up to 80% of tumors of the parotid gland. It is relatively rare in the soft palate and in other minor salivary glands. Surgery is the standard care.

Abstract

Salivary gland tumors are relatively rare and morphologically diverse group of lesions. Pleomorphic adenoma (PA) is the most common salivary gland tumor, accounting for approximately 80% of all major and minor salivary gland tumors. PA usually affects the parotid gland. Huge PA occurring in soft palate is extremely rare. Patients with these tumors are usually between at the age of 40 and 60 years. The tumors exhibit pleomorphic nature microscopically that may pose diagnostic challenges to pathologists as may confuse PA histopathologically with other salivary gland tumors. Surgery is the standard treatment. The purpose of writing this case study is to describe unusual case of a giant PA of the soft palate found in a 44-year-old male successfully managed at our facility.

A Rare Case of Pleomorphic Adenoma in the Internal Auditory Canal

Pleomorphic adenoma is a common tumor of the salivary gland tumor, but it is rare in the ear. To the authors' knowledge, this patient is the first reported case of pleomorphic adenoma arising in the internal auditory canal. There have been few documents reporting the manifestations and the therapy strategy of this disease. This study clearly demonstrated the experience in treating pleomorphic adenoma, including the characteristics of the clinical manifestation, the key procedures of surgery, and key points of the diagnosis. The translabyrinthine approach under the microscope performed to remove this tumor is a good option for resecting this type of tumor.

Surgical Treatment of a Huge Pleomorphic Adenoma in the Hard Palate of a Young Female Adult: A Case Report

Pleomorphic adenoma is the most common salivary gland tumor. This tumor mostly involves the parotid gland; however, if it occurs in the minor salivary glands, the palate would be the most common site. This lesion is more prevalent in patients with 40 to 60 years of age. Regarding the literature, the incidence of giant pleomorphic adenoma of the palate in young patients is considered a rare finding. Hereby, we present a rare case of pleomorphic adenoma of the palate, with an astonishing size, found in a 27-year-old patient. Furthermore, the surgical treatment of this lesion is described. This case was effectively treated with surgical curettage and tumor resection, emphasizing the significance of early detection in order to minimize complications. Surgical treatment, was beneficial to help the patient resume to normal life. Additionally, the clinical, radiological, and histopathological aspects and potential surgical treatments are discussed.

Surgical Management of Palatal Pleomorphic Adenoma (PPA) Recurrence After 10 years, Treated at a Brazilian Center - A Case Report

Pleomorphic adenoma, considered the most frequent benign mixed neoplasm of the minor salivary glands, occurs mainly in the region of the hard palate, with slight predilection in females and peak of incidence between the third and fifth decades of life. An increase in recurrence rates has been associated with the histopathological variants of the tumor, cellular characteristics, stroma, and capsule rupture during surgical removal of the lesion. The present case report aims to describe the surgical approach performed on the patient, a 45-year-old woman with a recurrent Pleomorphic Adenoma (PA) in the region of the hard palate on the right side, 10 years after initial enucleation of the lesion; her main complaint was an increase in volume in the palatal region. After extensive local surgical excision of the tumor and 2 years of follow-up, there were no signs of recurrence. Computed tomography and a correct histopathological diagnosis are essential to enable the establishment of an appropriate surgical treatment, with the purpose of achieving complete removal of the lesion, with wide surgical margins, including the lining mucosa and the underlying periosteum, as described in the present case.

The Le Fort I osteotomy as surgical approach of an extensive pleomorphic adenoma of the palate

Pleomorphic adenoma (PA) is the most common benign mixed salivary gland tumor. We describe here a peculiar case of a 72-year-old woman with a PA of the palate resected with palatal approach combined with Le Fort I osteotomy, adding to the currently limited scientific literature on intraoral approach for removal of extensive tumors of the midface. The Le Fort I osteotomy approach allows direct visualization of the tumor and ensures a wide excision, increasing safety and minimizing the possibility of recurrence.

Schwannoma in the midline of hard palate: a case report and review of literature

Schwannoma is a benign encapsulated slow-growing tumor that originates from Schwann cells of the peripheral nerve sheath. It usually occurs in the head and neck; however, it is rare in the oral cavity. The tongue is the most common site of intraoral schwannomas, followed by the floor of the mouth, palate, gingiva, vestibular mucosa, lips and mental nerve area. We report a rare case of schwannoma in the midline of hard palate with ulcerated surface in a 21-year-old male with a two-month history of a painless swelling on his palate. Clinical, radiographic and histopathological features along with differential diagnosis and treatment are also discussed.

Neoplasms of the hard palate

PURPOSE

Although the most common neoplastic lesion of the oral cavity is squamous cell carcinoma (SCC), primary neoplastic lesions of the hard palate have not been systematically reviewed to date. The aim of this study was to determine the histopathologic composition and characteristics of neoplasms of the hard palate.

MATERIALS AND METHODS

A retrospective analysis of 66 patients with a primary neoplasm of the hard palate managed at the authors' institution from 1985 through 2012 was performed. Demographic features, malignancy rate, histopathologic characteristics and distribution, TNM staging results, metastasis patterns, and management strategies were investigated.

RESULTS

The sample was composed of 66 patients (mean age, 45.0 yr; 57.6% men). Neoplasms were benign in 57.6% of cases and malignant in 42.4%. Epithelial neoplasms and mesenchymal neoplasms were encountered in 52 patients (78.8%) and 14 patients (21.2%), respectively. Minor salivary gland tumors (MSGTs) were the most common histopathologic group (60.6%), followed by benign mesenchymal tumors (15.2%), SCCs (12.1%), malignant melanomas (6.1%), lymphomas (3.0%), and sarcomas (3.0%). Although 75.0% of malignant epithelial neoplasms were at an advanced stage, there were no pN+ SCC or malignant MSGT cases at presentation.

CONCLUSION

The most common neoplasms of the hard palate were MSGTs. SCCs were relatively rare in this series. Although three-fourths of neoplasms were at an advanced stage, neck metastasis was not a characteristic of malignant epithelial neoplasms located in the hard palate.