Secretory carcinoma of the salivary gland, a rare entity : An international multi-institutional study
Wiles, Austin B.; Gabrielson, Matthew; Baloch, Zubair W.; Faquin, William C.; Jo, Vickie Y.; Callegari, Fabiano; Kholova, Ivana; Song, Sharon; Centeno, Barbara A.; Ali, Syed Z.; Tommola, Satu; Fadda, Guido; Petrone, Gianluigi; Wang, He; Rossi, Esther D.; Pantanowitz, Liron; Maleki, Zahra (2022)
Wiles, Austin B.
Gabrielson, Matthew
Baloch, Zubair W.
Faquin, William C.
Jo, Vickie Y.
Callegari, Fabiano
Kholova, Ivana
Song, Sharon
Centeno, Barbara A.
Ali, Syed Z.
Tommola, Satu
Fadda, Guido
Petrone, Gianluigi
Wang, He
Rossi, Esther D.
Pantanowitz, Liron
Maleki, Zahra
2022
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tuni-202206065496
https://urn.fi/URN:NBN:fi:tuni-202206065496
Kuvaus
Peer reviewed
Tiivistelmä
Background: Secretory carcinoma (SC) of the salivary gland is a rare entity with limited published literature on cytomorphology. The authors present the largest cohort to date of SC fine-needle aspiration (FNA) cases. Methods: FNA cases of histologically confirmed SC were retrospectively retrieved from 12 academic institutions in the United States, Italy, Finland, and Brazil. The collated data included patient demographics, imaging findings, cytopathologic diagnoses according to the Milan System for Reporting Salivary Gland Cytopathology, cytomorphologic characteristics, and immunohistochemical/molecular profiles. Results: In total, 40 SCs were identified (male-to-female ratio, 14:26) in patients with a mean age of 52 years (age range, 13-80 years). Ultrasound imagining revealed a hypoechoic, ovoid, poorly defined, or lobulated mass. The most common primary site was the parotid gland (30 of 40 tumors). Regional lymph node metastasis (9 patients) and distant metastasis (4 patients; brain, liver, lungs, and mediastinum) were noted. Two patients died of disease. FNA smears were cellular and demonstrated mainly large, round cells with intracytoplasmic vacuoles or granules and round-to-oval nuclei with smooth nuclear contour, minimal irregularities, and prominent nucleoli arranged predominantly in clusters, papillary formations, and single cells. The background was variable and contained inflammatory cells, mucin, or proteinaceous material. The diagnoses were malignant (19 of 38 tumors; 50%), suspicious for malignancy (10 of 38 tumors; 26%), salivary gland neoplasm of uncertain malignant potential (7 of 38 tumors; 18%), and atypia of undetermined significance (2 of 38 tumors; 6%) according to the Milan System for Reporting Salivary Gland Cytopathology. Two malignant cases (2 of 40 tumors; 5%) were metastases. The neoplastic cells were immunoreactive for S100 (23 of 24 tumors), mammaglobin (18 of 18 tumors), GATA-3 (13 of 13 tumors), AE1/AE3 (7 of 7 tumors), and vimentin (6 of 6 tumors). ETV6-NTRK3 fusion was detected in 32 of 33 tumors by fluorescence in situ hybridization (n = 32) and next-generation sequencing (n = 1). Conclusions: Familiarity with cytomorphologic features and the immunohistochemical/molecular profile of SC can enhance diagnostic accuracy.
Kokoelmat
- TUNICRIS-julkaisut [19195]