Two Cases of Acinic Cell Carcinoma of Parotid Gland – Rare Papillary Cystic Variant: One Unusual Presentation in Older Male Patient
نویسندگان
چکیده
ACCs are usually low grade, well‐differentiated neoplasms that constitute 2.5%–4% of parotid gland tumors.[1] The mean age of occurrence is in the fifth decade, but the papillary cystic variant is reported to occur in younger patients compared to the classic type. The most favored site is the parotid (86%), occasionally the submaxillary gland, minor salivary glands.[1] ACC is a neoplastic growth of epithelial cells showing serous acinar differentiation shows a female predilection.[2]
منابع مشابه
Primary Diffuse Large B-cell Lymphoma of the Breast: A Rare Case and Review of Literature
1. Jayaram G, Othman MA, Kumar M, Krishnan G. Papillary cystic type of acinic cell carcinoma of parotid: Fine needle aspiration cytological features of a high grade variant with oncocytic metaplasia. Malays J Pathol 2002;24:107‐12. 2. Shah A, Patwari M, Deshmukh RS. Acinic cell carcinoma, papillary‐cystic variant of the parotid gland: A case report with review of literature. Oral Oncol Extra 20...
متن کاملAcinic Cell Carcinoma of the Parotid Gland with Four Morphological Features
Acinic cell carcinoma arising in salivary glands is a rare tumor, accounting for 2% to 5% of the primary neoplasms of the parotid gland. When these tumors are well-differentiated, the neoplasia has innocuous aspect, due to the similarity to normal parotid tissue. This makes the diagnosis difficult. Initially the malignancy of this tumor was uncertain; however, recent studies have declared it as...
متن کاملPapillary cystic acinic cell carcinoma: report of a rare lesion with unusual presentation
Introduction: Acinic cell carcinoma is an uncommon low grade tumour of the salivary glands that constitutes 2.5 to 4% of parotid gland tumours. Acinic cell carcinoma -Papillary cystic variant (ACC-PCV) is histologically composed of tumor with papillary and cystic growth patterns, with varying proportions of one or more cell types. It has been conferred significance because it has a poorer progn...
متن کاملCentral Acinic Cell Carcinoma of the Mandible Simulating as Benign Odontogenic Lesion: A Case Report
Centrally occurring salivary gland tumors are rare. Because of a considerable overlap between the clinical and histopathological features, this group of tumors often produces a diagnostic difficulty to the clinicians and oral pathologists. Acinic cell carcinoma (ACC) is an unusual, low-grade, malignant salivary gland tumor that represents approximately 2% of the salivary gland tumors with almos...
متن کاملPapillary cystic type of acinic cell carcinoma of parotid: fine needle aspiration cytological features of a high grade variant with oncocytic metaplasia.
A 60-year-old female developed a right parotid swelling six months after surgery for intra-oral squamous cell carcinoma. Fine needle aspiration (FNA) cytological smears showed dissociated large and small pleomorphic tumour cells with abundant mitoses and oncocytic features. A cytological diagnosis of parotid acinic cell carcinoma (ACC) was made. Histological study of the subtotal parotidectomy ...
متن کامل