{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,13]],"date-time":"2025-05-13T14:52:50Z","timestamp":1747147970695,"version":"3.40.5"},"reference-count":10,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2021,7,15]],"date-time":"2021-07-15T00:00:00Z","timestamp":1626307200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Diagnostic Cytopathology"],"published-print":{"date-parts":[[2021,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Phyllodes tumor (PT) is a fibroepithelial lesion of breast known for presence of a heterogenous stroma. However occurrence of a keratin cyst within PT is a rare incidence. An inadequate sampling during fine needle aspiration (FNA) of such lesions may result in an erroneous cytological diagnosis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Case report<\/jats:title><jats:p>In the present case, ultrasound guided FNA smears from the breast lump in a 31\u2010year\u2010old lady with a clinical suspicion of malignancy, were repeatedly interpreted as an epidermal inclusion cyst, which was ultimately reported as a borderline PT on mastectomy.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The case report aims at highlighting the importance of a diligent FNA technique keeping in mind the possibility of the various uncommon lesions especially while dealing with such a heterogenous tumor as phyllodes.<\/jats:p><\/jats:sec>","DOI":"10.1002\/dc.24828","type":"journal-article","created":{"date-parts":[[2021,7,15]],"date-time":"2021-07-15T12:17:37Z","timestamp":1626351457000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Keratin cyst as a diagnostic pitfall in aspiration cytology of phyllodes tumor"],"prefix":"10.1002","volume":"49","author":[{"given":"Pranoy","family":"Paul","sequence":"first","affiliation":[{"name":"Department of Pathology and Laboratory Medicine AIIMS Rishikesh  Rishikesh India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3859-599X","authenticated-orcid":false,"given":"Shruti","family":"Agrawal","sequence":"additional","affiliation":[{"name":"Department of Pathology and Laboratory Medicine AIIMS Rishikesh  Rishikesh 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