{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T04:55:35Z","timestamp":1760244935746},"reference-count":16,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2007,10,17]],"date-time":"2007-10-17T00:00:00Z","timestamp":1192579200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Cutan Pathol"],"published-print":{"date-parts":[[2007,11]]},"abstract":"<jats:p><jats:bold>Background:\u2002<\/jats:bold> Nodular hidradenoma is a distinctive sweat gland neoplasm. In addition to the well\u2010known histological and cytological features, we hereby describe for the first time nuclear grooving as a useful morphological feature to aid in its diagnosis.<\/jats:p><jats:p><jats:bold>Methods:\u2002<\/jats:bold> All cases were analyzed for anatomic location, size, age, sex and histology, with attention focused mainly on the nuclear features. A semiquantitative method was used to estimate the percentage of nuclear grooves in five consecutive high\u2010power fields (\u00d740), with confirmation on \u00d7100. Electron microscopy was also performed to confirm light microscopic observation.<\/jats:p><jats:p><jats:bold>Results:\u2002<\/jats:bold> Totally, 34 cases of nodular hidradenoma were studied. All the tumors showed two types of cells. One type of cell contained clear cytoplasm with small, round nuclei. The second type of cell, which was the predominant type, had elongated nuclei. In 30 (88%) of the 34 cases, about 30% of these cells at \u00d740 and \u00d7100 magnification showed nuclear grooving. Electron microscopy on these samples confirmed nuclear grooves.<\/jats:p><jats:p><jats:bold>Conclusions:\u2002<\/jats:bold> In this study, we reviewed 34 cases of nodular hidradenoma. In addition to the classical features, both histologically and cytologically, we describe for the first time the nuclear grooves as a frequent finding in these neoplasms. This finding was also confirmed by electron microscopy. We believe that this newly described histological feature will aid the practicing pathologist to make this important diagnosis.<\/jats:p>","DOI":"10.1111\/j.1600-0560.2007.00743.x","type":"journal-article","created":{"date-parts":[[2007,10,18]],"date-time":"2007-10-18T11:43:07Z","timestamp":1192707787000},"page":"871-875","source":"Crossref","is-referenced-by-count":9,"title":["\u2018Nuclear grooves\u2019 in nodular hidradenoma: frequency and significance of an unrecognized histopatological feature"],"prefix":"10.1111","volume":"34","author":[{"given":"Amna","family":"Khurshid","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nausheen","family":"Yaqoob","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hafeez A.","family":"Devan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shahid","family":"Pervez","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2007,10,17]]},"reference":[{"key":"e_1_2_6_2_2","volume-title":"Atlas of tumor pathology (Non\u2010melanocytic tumors of the skin)","author":"Lund HZ","year":"1957"},{"key":"e_1_2_6_3_2","first-page":"691","article-title":"Clear cell myo\u2010epithelioma of the skin, report of ten cases","volume":"28","author":"Lever WF","year":"1952","journal-title":"Am J Pathol"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1002\/1097-0142(196903)23:3<641::AID-CNCR2820230318>3.0.CO;2-B"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1038\/jid.1967.134"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/0190-9622(90)70270-R"},{"key":"e_1_2_6_7_2","doi-asserted-by":"crossref","first-page":"651","DOI":"10.1001\/archderm.1968.01610120041005","article-title":"Solid\u2010cystic hidradenoma of the skin. 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