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Parotid Gland Oncocytoma and Its Clinicopathological Approach: A Case Report Dewi, I Gusti Ayu Sri Mahendra; Sudarsa, I Wayan; Mahastuti, Ni Made; Patriawan, Putu; Paskarani, Putu Erika; Heryanto, Budi
Indonesian Journal of Cancer Vol 19, No 1 (2025): March
Publisher : http://dharmais.co.id/

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33371/ijoc.v19i1.1233

Abstract

Introduction: Oncocytoma is a benign tumor of the salivary glands consisting of oncocyte cells, occurring in approximately 2% of all salivary gland neoplasms, most of which occur in the parotid gland. This tumour most commonly occurs in the sixth to eighth decades of life, with a mean age of 64 years and without gender predilection. The clinical presentation is often misdiagnosed as pleomorphic adenoma, cystic lesion, and inflammation.Case Presentation: A 63-year-old male, complained of a lump under the right ear, for 7 years ago. It feels painless and slightly enlarged since a month before surgery. Based on clinical examination suspected as benign cystic lesion due to inflammation and ultrasound suggesting a benign tumour mass with multiple lymphadenopathies at the right and left submandibular and right parotid. Then, the resected tumour continued for histopathological examination. Microscopically, the tumor cells are confined to the tissue. It consists of a uniform large polygonal cell with granular eosinophilic cytoplasm without any mitosis and necrotic area.Conclusions: Oncocytoma is a rare benign tumor of the salivary glands, especially affecting the parotid gland. Clinical and radiologically it is often misdiagnosed, so histopathological examination is needed for diagnostic confirmation for the best patient outcomes
Conventional Radiological Findings of an Anterior Mediastinal Mass at Ngoerah Hospital Putu Patriawan; Lorensius Ivan Pantekosta; Dewa Gde Mahiswara Suadiatmika
KOLONI Vol. 5 No. 2 (2026): JUNI 2026
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/koloni.v5i2.936

Abstract

The most common anterior masses, often referred to by the acronym 4T, consist of thymoma, teratoma, thyroid tissue, and lymphoma (terrible lymphoma). These masses present unique challenges due to their proximity to critical thoracic structures. Although advances in imaging aid in characterization, an accurate diagnosis often requires a multimodal approach integrating radiological, histological, and molecular techniques. The anterior mediastinum, located in front of the heart and bounded by the sternum, undergoes significant changes from childhood to adulthood. In children, the mediastinum houses the large thymus, a vital immune organ; in adults, the mediastinum transitions into a smaller space as thymic function diminishes and the gland atrophies. This evolution leaves an area vulnerable to tumor formation. This case report discusses three distinct cases of anterior mediastinal masses. From the cases presented, it is evident that chest radiography plays a crucial role in establishing the initial diagnosis of patients with mediastinal abnormalities, specifically anterior mediastinal masses. However, in the previously discussed cases, only a single-projection chest X-ray—the posterolateral (PA) view—was performed. As explained in the available literature, in patients suspected of having mediastinal abnormalities, chest X-rays should be performed using two projections: posteroanterior and lateral.