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Vegni F, Feraco A, Policardo F, Tralongo P, De Stefano I, Ferraro G, Zhang Q, Carlino A, Navarra E, Mulè A, Rossi ED. Cystic lesions in the salivary gland. Pitfalls to be avoided on cytology. Cytopathology 2023; 34:542-550. [PMID: 37377125 DOI: 10.1111/cyt.13263] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023]
Abstract
Cystic lesions of the salivary glands are very uncommon entities. However, on occasion, some neoplasms of the salivary glands show a cystic component, which may be predominant or only partially cystic. Basal cell adenoma, canalicular adenoma, oncocytoma, sebaceous adenoma, intraductal papilloma, epithelial-myoepithelial carcinoma, intraductal carcinoma, and secretory carcinoma are such cystic entities. Cystic degeneration and necrosis, which can develop within solid tumours, represent another possibility. The ability to recognise this type of lesion is a challenge in diagnostic cytology because hypocellular fluid is frequently recovered. Furthermore, evaluating all of the differential diagnoses for cystic lesions of the salivary glands is helpful in obtaining the correct diagnosis. Herein, we evaluate the various types of cystic lesions within the salivary glands.
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Affiliation(s)
- Federica Vegni
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "Agostino Gemelli"-IRCCS, Rome, Italy
| | - Angela Feraco
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "Agostino Gemelli"-IRCCS, Rome, Italy
| | - Federica Policardo
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "Agostino Gemelli"-IRCCS, Rome, Italy
| | - Pietro Tralongo
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "Agostino Gemelli"-IRCCS, Rome, Italy
| | - Ilenia De Stefano
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "Agostino Gemelli"-IRCCS, Rome, Italy
| | - Giulia Ferraro
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "Agostino Gemelli"-IRCCS, Rome, Italy
| | - Qianqian Zhang
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "Agostino Gemelli"-IRCCS, Rome, Italy
| | - Angela Carlino
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "Agostino Gemelli"-IRCCS, Rome, Italy
| | - Elena Navarra
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "Agostino Gemelli"-IRCCS, Rome, Italy
| | - Antonino Mulè
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "Agostino Gemelli"-IRCCS, Rome, Italy
| | - Esther Diana Rossi
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "Agostino Gemelli"-IRCCS, Rome, Italy
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Ribeiro EA, Maleki Z. Cystic Salivary Gland Neoplasms: Diagnostic Approach With a Focus on Ancillary Studies. Adv Anat Pathol 2022; 29:365-372. [PMID: 36044380 DOI: 10.1097/pap.0000000000000361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Cystic salivary gland cytology can be challenging due to the fact that a cystic mass can be the clinical presentation of both non-neoplastic and neoplastic conditions. Neoplastic lesions consist of both benign and malignant neoplasms. The cytomorphologic features of these entities can overlap and the cystic background may additionally contribute to the complexity of these lesions and their interpretation. Ancillary studies have been reported in several studies to be beneficial in further characterization of the cellular components and subsequent diagnosis of the cystic lesions of the salivary gland. Fluorescence in situ hybridization, real-time polymerase chain reaction, and next-generation sequencing are now being utilized to detect molecular alterations in salivary gland neoplasms. MALM2 rearrangement is the most common gene fusion in mucoepidermoid carcinoma. PLAG1 rearrangement is present in more than half of pleomorphic adenomas. AKT1:E17K mutation is the key diagnostic feature of the mucinous adenocarcinoma. NR4A3 overexpression is highly sensitive and specific for the diagnosis of acinic cell carcinoma. MYB fusion is noted in adenoid cystic carcinoma. ETV6:NTRK3 fusion is helpful in diagnosis of secretory carcinoma. p16 and human papillomavirus (HPV) studies differentiate HPV-related squamous cell carcinoma from non-HPV-related neoplasms with overlapping features. NCOA4:RET fusion protein is the main fusion in intraductal carcinoma.
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Affiliation(s)
- Efrain A Ribeiro
- Department of Pathology, The Johns Hopkins University School of Medicine and The Johns Hopkins Hospital, Baltimore, MD
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