{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T05:28:19Z","timestamp":1775539699236,"version":"3.50.1"},"reference-count":22,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2017,1,31]],"date-time":"2017-01-31T00:00:00Z","timestamp":1485820800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["aao-hnsfjournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Otolaryngol.--head neck surg."],"published-print":{"date-parts":[[2017,3]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To define the presence and relationship of the petrosquamous stalactite (PsS)\u2014a condensation of the trabecular Korner\u2019s septum into a bony plate of the petrosquamous suture\u2014to surrounding structures and understand its surgical implications.<\/jats:p><\/jats:sec><jats:sec><jats:title>Study Design<\/jats:title><jats:p>Series of cadaver dissections.<\/jats:p><\/jats:sec><jats:sec><jats:title>Setting<\/jats:title><jats:p>University of Missouri Alumni Temporal Bone and Microvascular Laboratory.<\/jats:p><\/jats:sec><jats:sec><jats:title>Subjects and Methods<\/jats:title><jats:p>Anatomic dissections were conducted on 15 consecutive formalin\u2010preserved and frozen adult human temporal bones. A calibrated Dino\u2010Lite Premier Digital Microscope was used to photograph dissections of each bone. Measurements were conducted with DinoCapture 2.0 software, with measurement agreement between 2 authors.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The PsS was present in all specimens. A conserved vascular structure courses within the structure, and the superior malleolar ligament inserts on it. The mean \u00b1 SEM distances from the PsS to the tegmen tympani and incus buttress were 2 \u00b1 0.24\u00a0mm and 4.23 \u00b1 0.14\u00a0mm, respectively. The shortest distance from the PsS to the posterior body of the incus was 1.25 \u00b1 0.13\u00a0mm, while the greatest distance from the posterior prominence of the PsS to the posterior body of the incus was 4.58 \u00b1 0.25\u00a0mm.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The PsS is a consistently identifiable structure that may facilitate identification of the tegmen tympani and guide the otologic surgeon from the mastoid antrum to the incus. It is important to recognize the contribution of the PsS to the division of the epitympanic space when cholesteatoma involves the region, to avoid leaving a nidus for future disease.<\/jats:p><\/jats:sec>","DOI":"10.1177\/0194599816679943","type":"journal-article","created":{"date-parts":[[2017,1,31]],"date-time":"2017-01-31T18:10:04Z","timestamp":1485886204000},"page":"549-553","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["The Petrosquamous Stalactite: Anatomic Characterization and Mastoid Surgical Implications"],"prefix":"10.1002","volume":"156","author":[{"given":"Michael D.","family":"Puricelli","sequence":"first","affiliation":[{"name":"Department of Otolaryngology\u2013Head and Neck Surgery University of Missouri Columbia Missouri USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maxwell D.","family":"Newby","sequence":"additional","affiliation":[{"name":"University of Missouri School of Medicine Columbia Missouri USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andrew J.","family":"Fishman","sequence":"additional","affiliation":[{"name":"Neurosciences Institute at Northwestern Regional Medical Group Winfield Illinois USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Arnaldo L.","family":"Rivera","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology\u2013Head and Neck Surgery University of Missouri Columbia Missouri USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2017,1,31]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1097\/MAO.0000000000000824"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00276-004-0235-1"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.5812\/iranjradiol.9400"},{"key":"e_1_2_10_5_1","first-page":"741","article-title":"Sinus tympani: anatomic considerations, computed tomography, and a discussion of the retrofacial approach for removal of disease","volume":"16","author":"Pickett BP","year":"1995","journal-title":"Am J Otol"},{"key":"e_1_2_10_6_1","first-page":"193","article-title":"Surgical anatomy of the epitympanic space","volume":"17","author":"Wong DL","year":"1996","journal-title":"Am J Otol"},{"issue":"5","key":"e_1_2_10_7_1","first-page":"193","article-title":"Anatomy of the mastoid emissary vein and venous system of the posterior neck region: neurosurgical implications","volume":"61","author":"Reis CV","year":"2007","journal-title":"Neurosurgery"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.otohns.2004.02.009"},{"key":"e_1_2_10_9_1","first-page":"686","article-title":"The anatomic relationship between the second genu of the facial nerve and the incus: a high\u2010resolution computed tomography study","volume":"21","author":"Luntz M","year":"2000","journal-title":"Am J Otol"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1447-073X.2007.00175.x"},{"key":"e_1_2_10_11_1","first-page":"873","article-title":"Morphometry and CT measurements of useful bony landmarks of skull base","volume":"52","author":"Ray B","year":"2011","journal-title":"Rom J Morphol Embryol"},{"key":"e_1_2_10_12_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00276-012-0947-6"},{"key":"e_1_2_10_13_1","doi-asserted-by":"publisher","DOI":"10.1097\/MAO.0b013e31824b7882"},{"key":"e_1_2_10_14_1","doi-asserted-by":"publisher","DOI":"10.1007\/s12070-011-0159-0"},{"key":"e_1_2_10_15_1","first-page":"13","article-title":"Iatrogenic surgical trauma in otology","volume":"8","author":"Bellucci R","year":"1983","journal-title":"J Laryngol Otol Suppl"},{"key":"e_1_2_10_16_1","doi-asserted-by":"publisher","DOI":"10.3109\/00016489709113427"},{"key":"e_1_2_10_17_1","first-page":"561","article-title":"Computed tomography of temporal bone pneumatization: 2. 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