{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,28]],"date-time":"2026-07-28T04:36:45Z","timestamp":1785213405545,"version":"3.55.0"},"reference-count":16,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2026,4,2]],"date-time":"2026-04-02T00:00:00Z","timestamp":1775088000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Background: Posterior neck lipomatosis, commonly referred to as a buffalo hump, is characterized by abnormal accumulation of adipose and fibrofatty tissue in the dorsocervical region, leading to aesthetic deformity and functional discomfort. Ultrasound-assisted liposuction (UAL) has been widely used as a minimally invasive treatment option, particularly for fibrous adipose tissue; however, surgical outcomes may vary depending on regional anatomical characteristics. Methods: This retrospective observational study included five patients with idiopathic posterior neck lipomatosis who underwent UAL using a superwet infiltration technique. Liposuction was performed through three access ports, with initial deep-plane debulking followed by contour refinement. Postoperative outcomes were assessed based on clinical examination, standardized photographic documentation, and patient-reported satisfaction during follow-up. Results: The mean follow-up duration was 8.2 months (range, 7\u201310 months). All patients demonstrated visible improvement in dorsocervical contour following UAL. The mean volume of tumescent infiltration was 176 mL (range, 100\u2013250 mL), and the mean lipoaspirate volume was 178 mL (range, 110\u2013280 mL). Four patients achieved satisfactory contour improvement and reported high satisfaction. One patient exhibited residual dorsocervical prominence consistent with relative undercorrection, despite adequate aspiration volume and ultrasonic application. No major perioperative or postoperative complications were observed. Conclusions: Ultrasound-assisted liposuction appeared to provide favorable short-term contour improvement in this small series of idiopathic posterior neck lipomatosis. However, dense fibrous septation and deep fascial tethering in the dorsocervical region may limit complete correction in selected patients, even when aspiration volume and ultrasonic application are considered adequate. Recognition of these anatomical constraints may help refine surgical planning, improve preoperative counseling, and guide expectations regarding residual fullness.<\/jats:p>","DOI":"10.3390\/jcm15072704","type":"journal-article","created":{"date-parts":[[2026,4,2]],"date-time":"2026-04-02T14:09:54Z","timestamp":1775138994000},"page":"2704","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Ultrasound-Assisted Liposuction for Idiopathic Buffalo Hump: Anatomical Considerations and Technical Implications"],"prefix":"10.3390","volume":"15","author":[{"given":"Jeeyoon","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Plastic and Reconstructive Surgery, Eunpyeong St. Mary\u2019s Hospital, College of Medicine, The Catholic University of Korea, Tongil-ro 1021, Seoul 03312, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-0619-6322","authenticated-orcid":false,"given":"Yerin","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Plastic and Reconstructive Surgery, Eunpyeong St. Mary\u2019s Hospital, College of Medicine, The Catholic University of Korea, Tongil-ro 1021, Seoul 03312, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9435-4026","authenticated-orcid":false,"given":"Eunyoung","family":"Rha","sequence":"additional","affiliation":[{"name":"Department of Plastic and Reconstructive Surgery, Eunpyeong St. Mary\u2019s Hospital, College of Medicine, The Catholic University of Korea, Tongil-ro 1021, Seoul 03312, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1597-795X","authenticated-orcid":false,"given":"Jongweon","family":"Shin","sequence":"additional","affiliation":[{"name":"Department of Plastic and Reconstructive Surgery, Eunpyeong St. Mary\u2019s Hospital, College of Medicine, The Catholic University of Korea, Tongil-ro 1021, Seoul 03312, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,4,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1289","DOI":"10.1001\/jama.2013.2552","article-title":"A 51-year-old man with HIV and cervicodorsal lipodystrophy (buffalo hump)","volume":"309","author":"Shridharani","year":"2013","journal-title":"JAMA"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"617","DOI":"10.1016\/j.clindermatol.2021.08.018","article-title":"The Buffalo Hump of Cushing Syndrome","volume":"40","author":"Hoenig","year":"2022","journal-title":"Clin. Dermatol."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"5942","DOI":"10.1111\/jocd.15255","article-title":"Liposuction to improve the dorsocervical fat pad in esthetic need: Anatomical study and clinical case series","volume":"21","author":"Wang","year":"2022","journal-title":"J. Cosmet. Dermatol."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"147","DOI":"10.1016\/j.asj.2007.12.003","article-title":"Excisional lipectomy for HIV-associated cervicodorsal lipodystrophy","volume":"28","author":"Warren","year":"2008","journal-title":"Aesthet. Surg. J."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"685","DOI":"10.5999\/aps.2020.02285","article-title":"Excisional lipectomy versus liposuction in HIV-associated lipodystrophy","volume":"48","author":"Barton","year":"2021","journal-title":"Arch. Plast. Surg."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"e16112","DOI":"10.1097\/MD.0000000000016112","article-title":"Clinical outcome after lipectomy in the management of patients with human immunodeficiency virus-associated dorsocervical fat accumulation: An observational cohort study","volume":"98","author":"Chen","year":"2019","journal-title":"Medicine"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"1374","DOI":"10.1086\/379073","article-title":"Use of ultrasonography-assisted liposuction for the treatment of human immunodeficiency virus-associated enlargement of the dorsocervical fat pad","volume":"37","author":"Piliero","year":"2003","journal-title":"Clin. Infect. Dis."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"946","DOI":"10.1016\/j.bjps.2007.10.086","article-title":"Buffalo hump in HIV patients: Surgical management with liposuction","volume":"62","author":"Sharma","year":"2009","journal-title":"J. Plast. Reconstr. Aesthet. Surg."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"1843","DOI":"10.1097\/01.prs.0000267341.14550.a7","article-title":"Surgical algorithm for management of HIV lipodystrophy","volume":"120","author":"Davison","year":"2007","journal-title":"Plast. Reconstr. Surg."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"574","DOI":"10.1097\/00002030-200402200-00030","article-title":"Long-term efficacy of the surgical treatment of buffalo hump in patients continuing antiretroviral therapy","volume":"18","author":"Gervasoni","year":"2004","journal-title":"Aids"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"989","DOI":"10.1097\/PRS.0000000000010077","article-title":"The Superficial Fascia System: Anatomical Guideline for Zoning in Liposuction-Assisted Back Contouring","volume":"151","author":"Si","year":"2023","journal-title":"Plast. Reconstr. Surg."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"4359","DOI":"10.1007\/s00266-025-05016-2","article-title":"TARD Treatment Strategy for Buffalo Hump Based on Dorsocervical Esthetic Subunits","volume":"49","author":"Liu","year":"2025","journal-title":"Aesthet. Plast. Surg."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"572","DOI":"10.1093\/bjd\/ljaf209","article-title":"Dermoscopy-guided high-frequency ultrasound for preoperative assessment of basal cell carcinoma lateral margins: A pilot study","volume":"193","author":"Boostani","year":"2025","journal-title":"Br. J. Dermatol."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"100446","DOI":"10.1016\/j.xjidi.2025.100446","article-title":"Dermoscopy-guided high-frequency ultrasound: Principles and applications in dermatology","volume":"6","author":"Boostani","year":"2026","journal-title":"JID Innov."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"207e","DOI":"10.1097\/PRS.0000000000012212","article-title":"Dissector-Assisted Liposuction for Dorsocervical Fibro-Lipodystrophy (Buffalo Hump): Results from 57 Patients","volume":"157","author":"Zheng","year":"2025","journal-title":"Plast. Reconstr. Surg."},{"key":"ref_16","doi-asserted-by":"crossref","unstructured":"Zhou, R., Ding, A., and Wang, D. (2025). The TABLE Technique: A Targeted Open Approach for Fibrous-dominant Dorsocervical Hump (Buffalo Hump). Aesthet. Surg. J., sjaf188.","DOI":"10.1093\/asj\/sjaf188"}],"container-title":["Journal of Clinical Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2077-0383\/15\/7\/2704\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,2]],"date-time":"2026-04-02T14:27:04Z","timestamp":1775140024000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2077-0383\/15\/7\/2704"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,4,2]]},"references-count":16,"journal-issue":{"issue":"7","published-online":{"date-parts":[[2026,4]]}},"alternative-id":["jcm15072704"],"URL":"https:\/\/doi.org\/10.3390\/jcm15072704","relation":{},"ISSN":["2077-0383"],"issn-type":[{"value":"2077-0383","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,4,2]]}}}