yemenjmedYemen Journal of MedicinecoVolume 2 Issue 1MultidisciplinaryEnglishJanuary - April 2023 NNY20230510ArticleFirst report of post-vomiting subcutaneous peri-lacrimal drainage system emphysemaEnglishY6263Maher MohamadNajm1EnglishN2EnglishYBashar HasanKayal3EnglishYAbdalmalek MohamadNajm4EnglishYHassan AhmadIbrahim5EnglishY10.32677/yjm.v2i1.3825Subcutaneous emphysema is defined as a trapped air in tissues under the skin. This entity most often occurs in the chest wall and neck but can infrequently happen in other parts of the body like the orbital areaEnglishhttps://yemenjmed.com/admin/abstract?id=56References1619Aghajanzadeh M, Dehnadi A, Ebrahimi H, et al. Classification and Management of Subcutaneous Emphysema: a 10-Year Experience. Indian J Surg. 2015;77(Suppl 2):673-677. Casselman JW, Peene PT, Coppens F, et al. Pneumatocele in a traumatic ruptured lacrimal sac mucocele.and;nbsp;Rofo. 1989;150(1):106-107. Das S, Ali MJ, Bansal S, et al. Lacrimal Sac Pneumatocele Following Blunt Nasal Trauma.and;nbsp;Ophthalmic Plast Reconstr Surg. 2017;33(6):e150-e151. Singh NP, Walker RJE, Cowan F, et al. Retrograde Air Escape via the Nasolacrimal System: A Previously Unrecognized Complication of Continuous Positive Airway Pressure in the Management of Obstructive Sleep Apnea. Annals of Otology, Rhinology and;amp; Laryngology. 2014;123(5):321-324.and;nbsp; Komro J J, Williams P J, Lin D J. Orbital Defect and Emphysema After Nose Blowing: A Case Report and Literature Review. Cureus. 2022;14(12): e32958. Malik S, Ali MJ, Sundararajan M, et al. Retrograde Air Flow through the Lacrimal Drainage System with Valsalva Maneuver. J Otolaryngol Rhinol. 2020; 6:096. Chikkappa MG, Morrison C, Lowe A, et al. Paediatric Boerhaaveand;#39;s syndrome: a case report and review of the literature. Cases J. 2009;2:8302. Roh JL, Park CI. Spontaneous Pharyngeal Perforation After Forceful Vomiting: The Difference from Classic Boerhaaveand;#39;s Syndrome. Clin Exp Otorhinolaryngol. 2008;1(3):174-176.