Philippine Journal of Otolaryngology Head and Neck Surgery最新文献

{"title":"Combined Cartilage Graft Reconstruction of the Nasal Tip Complex after Resection of Nasal Tip Schwannoma: A Case Report","authors":"Faith Jennine Bacalla, Joman Laxamana","doi":"10.32412/pjohns.v38i1.2151","DOIUrl":"https://doi.org/10.32412/pjohns.v38i1.2151","url":null,"abstract":"ABSTRACT \u0000Objective: To present a rare case of nasal tip schwannoma and describe its resection and reconstruction using combined cartilage grafts. \u0000Methods: \u0000     Design: Case Report     Setting: Tertiary Government Training Hospital     Patient: One \u0000Results: A 13-year-old boy presented with a progressively enlarging nasal tip and severe left nasal obstruction causing breathing difficulties and psychosocial distress. There was a bulging septal mass obstructing 90% of the left nasal cavity. Septal incision biopsy revealed schwannoma and definitive surgery via open rhinoplasty approach was done. The non-encapsulated schwannoma extended from the subcutaneous nasal tip to the left septal mucosa. There was no evidence of skin or cartilage invasion, but prolonged pressure from the expansile schwannoma caused severe lower lateral cartilage and anterior septal atrophy leading to a collapsed and expanded nasal tip after resection. To correct this, a total reconstruction of the anterior tip complex was done using combined ear cartilage seagull wing graft, shield graft and septal extension graft. Conclusion: Nasal tip and septal schwannoma is rare and can cause significant nasal obstruction and deformity. Complete excision is vital to avoid recurrence. Total reconstruction of the lower lateral cartilages using autologous septal and ear cartilage grafts may be a safe and effective technique that yields acceptable aesthetic results.","PeriodicalId":33358,"journal":{"name":"Philippine Journal of Otolaryngology Head and Neck Surgery","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42652744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association of Glycemic Index Using HbA1c and Sensorineural Hearing Loss in Diabetes Mellitus Type 2 Patients: A Systematic Review and Meta-Analysis","authors":"Mark Randell Quines, C. E. Gloria","doi":"10.32412/pjohns.v38i1.2133","DOIUrl":"https://doi.org/10.32412/pjohns.v38i1.2133","url":null,"abstract":"ABSTRACT \u0000Objective: To systematically review the available evidence on the association of HBA1c levels and development of sensorineural hearing loss and to quantitatively analyze the available data on HBA1c levels in patients with type 2 diabetes mellitus and sensorineural hearing loss to determine an HbA1c level that may be associated with the risk of having sensorineural hearing loss. \u0000Methods: \u0000       Design: Systematic Review and Meta-analysis     Eligibility Criteria: Cross-sectional studies, or cohort studies which were limited to English language that investigated the correlation of glycemic index using HBA1c and sensorineural hearing loss among adult type 2 diabetic patients which were done from January 2010 to December 2021. Studies with no published outcome, incomplete data or that were ongoing as of August 1, 2022 were also excluded. \u0000   Information Sources: MEDLINE (through PubMed), Cochrane Library, Scopus, Embase (through OVID@journal), Directory of Open Access Journals (DOAJ), Google Scholar and HERDIN Plus \u0000       Risk of Bias: Risk of Bias was assessed using the Guidelines for Cochrane Collaboration       Synthesis of Results: Results were presented using forest plots for representation.Results: A total of 8 studies were reviewed with 2,103 participants in all. Six articles compared hearing loss incidence between diabetic and non-diabetic patients. Overall, there were a total of 881 diabetic patients and 1222 non-diabetic patients. There was a significantly lower incidence of sensorineural hearing loss in non-diabetic patients with a risk ratio of 1.89, 95% CI [1.65, 2.16]. Three articles compared the HbA1c levels of diabetic patients with or without sensorineural hearing loss. Diabetic patients without sensorineural hearing loss had significantly lower HbA1c levels compared to those with sensorineural hearing loss with mean difference of 1.04, 95%CI [0.82, 1.25].Conclusion: In conclusion, this meta-analysis showed a higher prevalence rate of sensorineural hearing loss among patients with diabetes mellitus compared to non-diabetic patients. Moreover, poor glycemic control among diabetic patients with a glycemic index based on HbA1c of more than 8.3 (6.97-9.6) is associated with sensorineural hearing loss.","PeriodicalId":33358,"journal":{"name":"Philippine Journal of Otolaryngology Head and Neck Surgery","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42161776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Intradermal Hyaluronidase: The Answer to Treatment in Softening a Fibrous Thick Supratip Skin in Rhinoplasty?","authors":"E. Yap, John Michael Porquez","doi":"10.32412/pjohns.v38i1.2153","DOIUrl":"https://doi.org/10.32412/pjohns.v38i1.2153","url":null,"abstract":"ABSTRACT \u0000     It is a common goal for rhinoplastic surgeons to make the best-looking tip with proper projection, maintaining the tip lobule appearance with a supratip break. (Figure 1) However, a fibrous thick skin with fullness may not achieve the ideal tip. It is one of the nuisances in rhinoplasty that makes tip definition surgery difficult. The supratip area remains firm and convex causing a wide bulbous feature of the tip. Several techniques have been introduced with good results however some may still result in supratip fullness because of the firm fibrous nature of thick skin.1-3      Hyaluronidase is an enzyme that depolymerizes hyaluronic acid which is present in the epithelium.4 The use of intradermal hyaluronidase for thick skin was discovered by the junior author (JMP) in one of his rhinoplasties when he injected hyaluronidase in a nose with fillers containing hyaluronic acid. The fillers not only instantly dissolved but the skin also softened, so he tried injecting intradermally in his subsequent rhinoplasties on non-filler noses with fibrous thick skin and indeed found the same effect of softening of the fibrous supratip skin. We here describe the technique used in this preliminary clinical series. \u0000METHODS \u0000     A vial of 1,500 I.U. of hyaluronidase (Liporase, Skin Lab Medical, Essex, UK) is mixed with 1.0 ml of Normal Saline Solution (NSS) and 0.1 - 0.2ml (150u – 300u) is aspirated and may be diluted with 0.8ml of PNSS in a 1 cc tuberculin syringe or given as concentrated dose. Intradermal injection into fibrous thick skin can be performed intraoperatively before incision or after closure when defatting and tip grafts are put in place but still with supratip fullness. The areas to be injected are the supratip and its sides. (Figure 2). \u0000     A disposable hypodermic needle gauge 30 is used to inject intradermally or subdermally in minute amounts until blanching is noted. These injections are given at equally random spacing. Immediately after injection, finger pressure massage is applied at the supratip area for 1-3 minutes to soften the skin and allow redraping of the skin and soft tissue envelope (SSTE).","PeriodicalId":33358,"journal":{"name":"Philippine Journal of Otolaryngology Head and Neck Surgery","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42467484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Follicular Thyroid Adenoma with Papillary Architecture","authors":"J. Carnate","doi":"10.32412/pjohns.v38i1.2159","DOIUrl":"https://doi.org/10.32412/pjohns.v38i1.2159","url":null,"abstract":"     A 23-year-old woman underwent left thyroid lobectomy and isthmusectomy for a 2 cm diameter firm mass on the left side of the neck that was also visualized on ultrasonography. The specimen consisted of a 22-gram thyroid gland composed of the left lobe, isthmus and a pyramidal lobe. Cut section of the left lobe showed a 3.5 cm diameter solitary, discrete and encapsulated mass with a tan lobulated and solid cut surface. The rest of the thyroid tissues had red-brown meaty cut surfaces. \u0000     Microscopic section shows a follicular-patterned proliferation enclosed by a thin fibrous capsule with frequent Sanderson polster-like papillary excrescences. (Figures 1 and 2) Both the follicular and the papillary structures are lined by cuboidal to columnar follicular epithelial cells that had ample eosinophilic to pale cytoplasm and uniformly sized, minimally enlarged, generally round, and monolayered nuclei without nuclear grooving, folds, pseudoinclusions, and chromatin clearing. There are no mitotic figures seen. Some of the papillary structures have delicate vascular cores. (Figure 3) There are no psammoma bodies noted. The follicles contain variable amounts of pale eosinophilic colloid ranging from colloid-poor crowded follicles to those with ample colloid that have frequent peripheral scalloping. (Figure 4) Exhaustive sections failed to disclose capsular or vascular invasion. Based on the microscopic features, a diagnosis of follicular adenoma with papillary architecture was rendered.","PeriodicalId":33358,"journal":{"name":"Philippine Journal of Otolaryngology Head and Neck Surgery","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46660673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PRESIDENT’S PAGE","authors":"Ricardo Ramirez","doi":"10.32412/pjohns.v38i1.2125","DOIUrl":"https://doi.org/10.32412/pjohns.v38i1.2125","url":null,"abstract":"Greetings to all! \u0000     Congratulations for another successful publication of the Philippine Journal of Otolaryngology-Head and Neck Surgery. This year marks the 42nd publication and I would like to commend the editorial team, spearheaded by Dr. José Florencio F. Lapeña Jr., and all the authors for their hard work and outstanding performance in this journal. As we transition to a new normal after the pandemic, we cannot deny that it has brought changes into our lives including the way we approach research. \u0000     But why do we even need to conduct research? We faced seemingly insurmountable limitations and obstacles during the past 3 years and coming up with a research topic and writing a research paper should have been the last thing on our minds, yet we continued. We continued to further our knowledge about the topics that we know and love. We continued to seek answers to the questions that we had. And finally, we continued to encourage and motivate the younger generation to be inquisitive and to keep the love of learning burning. \u0000     The PJOHNS embodies the passion and the drive to learn more about ORL-HNS. The various case studies, descriptive researches, and analytical researches present in this journal, represent the commitment of the editor-in-chief and editorial staff, and the dedication of the authors to our field. I hope that everyone that reads this journal will find it helpful in furthering their knowledge about the field of ORL-HNS. \u0000     As you go through the pages of this journal, I hope it ignites your thirst for knowledge once again and renews your passion in Otorhinolaryngology. \u0000Enjoy reading!","PeriodicalId":33358,"journal":{"name":"Philippine Journal of Otolaryngology Head and Neck Surgery","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45756677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Delayed-Onset Unilateral Facial Paralysis After Mastoidectomy: A Case Report","authors":"Elbert Digger Baloco, Jose Orosa","doi":"10.32412/pjohns.v38i1.2149","DOIUrl":"https://doi.org/10.32412/pjohns.v38i1.2149","url":null,"abstract":"ABSTRACT \u0000Objective: To discuss the case of a 36-year-old man who presented with left unilateral facial paralysis 11 days after mastoidectomy.Methods:     Design: Case Report     Setting: Tertiary Government Training Hospital     Patient: OneResults: A 36-year-old man with recurrent left ear discharge of 30 years duration underwent left canal wall-down mastoidectomy and was discharged well after 3 days. On follow up after 8 more days, he was noted to have House Brackmann IV left facial paralysis. Following 5 days methylprednisolone, neurologic evaluation and physical therapy rehabilitation, facial paralysis improved in the ensuing weeks until House-Brackmann I was achieved at week 12.Conclusion: Delayed-onset Facial Palsy (DFP) following tympanomastoid surgery may be approached conservatively, including steroids, acyclovir, and, if with a history of herpes or varicella infection, immunization can be given. Prognosis for DFP is good especially when the facial nerve is identified intraoperatively during otologic surgeries","PeriodicalId":33358,"journal":{"name":"Philippine Journal of Otolaryngology Head and Neck Surgery","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43596352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fracture of the Petrous Carotid Canal","authors":"N. Yang","doi":"10.32412/pjohns.v38i1.2157","DOIUrl":"https://doi.org/10.32412/pjohns.v38i1.2157","url":null,"abstract":"     A 23-year-old male motorcyclist experienced blunt head trauma with loss of consciousness, headache and vomiting, epistaxis and right otorrhagia after a collision with a motor vehicle. Fractures involving the right parietal and temporal bones, as well as acute subdural and subarachnoid hemorrhage were identified on a cranial and facial CT scan. On independent evaluation of the imaging study, a subtle but distinct fracture line in the skull base involving the petrous carotid canal was identified. (Figure 1) The patient subsequently underwent CT angiography to evaluate for any injury to the internal carotid artery. In this examination, good opacification of the internal carotid arteries and their branches was noted, with no evident aneurysm, arteriovenous malformation or arteriovenous fistula formation. \u0000     In patients with temporal bone fractures, the most commonly encountered complications are: tympano-ossicular injury causing conductive hearing loss, cochlear or vestibular injury causing sensorineural hearing loss or vertigo, facial nerve trauma causing facial paralysis, and fractures of the tegmen or posterior cranial fossa plate causing cerebrospinal fluid leaks.1 On the other hand, injury to the intratemporal portion of the internal carotid artery has been described as a rare complication and as such may be overlooked.1 However, its potentially devastating and life-threatening sequelae necessitates a purposeful and intentional evaluation for its presence. These sequelae include brain ischemia from arterial dissection or complete vascular occlusion, exsanguinating epistaxis or otorrhagia from carotid pseudoaneurysms, and the formation of carotid-cavernous fistulas.2 The incidence of involvement of the carotid canal in skull base fractures has been reported to be around 24%, with around 11% of this group developing internal carotid artery injuries.3 As such, the presence of fractures involving the petrous carotid canal is an indication for CT or MR angiography to further evaluate the internal carotid artery.4","PeriodicalId":33358,"journal":{"name":"Philippine Journal of Otolaryngology Head and Neck Surgery","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42963165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Delay and Completion of Treatment in Head and Neck Cancer Patients Employing a Multidisciplinary Team Approach: A Single Institution Experience","authors":"Jamel Maita Manaig, A. Fernando, K. Yu","doi":"10.32412/pjohns.v38i1.2147","DOIUrl":"https://doi.org/10.32412/pjohns.v38i1.2147","url":null,"abstract":"ABSTRACT \u0000Objective: To explore possible associations of a multidisciplinary team approach compared to a non-multidisciplinary team approach on delay and completion of treatment of head and neck cancer patients.Methods:     Design: Historical Cohort Study     Setting: Tertiary Private Training Hospital     Participants: A total of 240 records of head and neck cancer patients from January 2016 and December 2018 were included in the study; 117 underwent a multidisciplinary team approach and 123 underwent a non- multidisciplinary team approach.Results: Only 24.79% of head and neck cancer patients under the multidisciplinary team approach had treatment delays compared to 37.40% under the non-multidisciplinary team approach. The proportion of treatment delays was significantly higher (χ2 = 4.44, p = .035) with the non-multidisciplinary team approach. Comparative treatment completion of 77.78% and 69.11% under the multidisciplinary and non-multidisciplinary team approaches, respectively, were not significantly different (χ2 = 2.31, p = .129). Conclusion: The multidisciplinary approach might be associated with decreased delay in treatment among patients with head and neck cancer compared to the non-multidisciplinary team approach. A possible trend toward better treatment completion rate was also observed, but it did not reach statistical significance","PeriodicalId":33358,"journal":{"name":"Philippine Journal of Otolaryngology Head and Neck Surgery","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47292437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Profile of Patients with Oral Cavity Cancer Seen at the Department of Ear Nose Throat – Head and Neck Surgery of the Bicol Medical Center","authors":"A. Álvarez, Marifee Reyes","doi":"10.32412/pjohns.v38i1.2143","DOIUrl":"https://doi.org/10.32412/pjohns.v38i1.2143","url":null,"abstract":"ABSTRACT \u0000Objective: To determine the profile of patients with oral cavity cancer seen at the Ear, Nose and Throat – Head and Neck Surgery (ENT-HNS) Department of the Bicol Medical Center from January 2018 to December 2020.Methods:     Design: Retrospective review of records     Setting: Tertiary Government Training Hospital   Participants: Medical records of patients with oral cavity lesions with malignant biopsy results seen at the Bicol Medical Center Department of ENT-HNS from January 2018 to December 2020.Results: Records of 42 patients were included, 30 (71%) male; 12 (29%) female with the mean age of 62 ± 10.02 (range 34 to 80 years old). Squamous cell carcinoma was the most common histopathologic diagnosis (38/42; 91%), mostly affecting the anterior tongue (16/42; 38%) and buccal regions (14/42; 33%). Most tumors were in advanced stages: 25/42 (59%) in stage IVA; 7 (17%) in stage IVB. A total of 61% (17) of 28 oral cavity cancer patients with recorded risk factors practiced a combination of two or three high risk habits (betel nut chewing, tobacco smoking, alcoholic beverage intake) and a third practiced all three (10/28; 36%).Conclusion: The profile of oral cavity cancer patients in our study is different from the reported profiles in Asia and European and US counterparts. Our profile patient is a married male farmer in the 7th decade of life with poor dental hygiene and advanced stage IV squamous cell carcinoma of the tongue and buccal region, and combined habits of regular alcoholic beverage drinking, chronic tobacco smoking, and/or betel nut chewing, who lives in coastal or mountainous communities where access to health care may be limited.","PeriodicalId":33358,"journal":{"name":"Philippine Journal of Otolaryngology Head and Neck Surgery","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42326558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sinonasal Anatomy Variations on CT Scans of a Sample of Filipino Adults With Chronic Rhinosinusitis","authors":"Catherine P. Policina, G. M. Ambrocio, R. Roldan, P. Grullo","doi":"10.32412/pjohns.v38i1.2139","DOIUrl":"https://doi.org/10.32412/pjohns.v38i1.2139","url":null,"abstract":"ABSTRACT \u0000Objective: To determine the prevalence of sinonasal anatomic variations seen on paranasal sinus (PNS) CT scans of a sample of Filipino adults with chronic rhinosinusitis.Methods:      Design: Cross-sectional study     Setting: Tertiary Government Training Hospital     Participants: The PNS CT scans of 51 Filipino patients with chronic rhinosinusitis with and without nasal polyposis diagnosed at our outpatien Department of Otorhinolaryngology-Head and Neck Surgery between October 2015 to December 2020 were reviewed for the presence of sinonasal anatomic variants. The prevalence of the identified variants was calculated. \u0000Results: The CT scans of 51 patients, 41 (80.4%) men and 10 (19.6%) women, were included. The median age was 48 years (Q25: 35, Q75: 56, IQR:21). The median Lund Mackay Score (LMS) was 15 (Q25: 12, Q75: 20, IQR:8). Majority (94%) had an LMS of ≥5. The most common anatomic variant in the study population was agger nasi (n=46/51, 90.2% present bilaterally) followed by uncinate process attachment to the lamina papyracea (n=90/102, 88.24%). The third to sixth most common findings were Keros type II classification (n=76/102, 74.51%), nasal septal deviation (n=35/51, 68.62%), optic nerve canal type 1 (n=67/102, 65.69%) and anterior  ethmoid artery grade 1 (n=46/102, 45.1%), respectively. Less common variants were Onodi cell (n=13/51, 25.49% unilateral and n=10/51, 19.61% bilateral), Haller cell (n=8/51, 15.69% unilateral and n=1/51, 1.96% bilateral), supraorbital cell (n=4/51, 7.84% unilateral and n=4/51, 7.84% bilateral), middle turbinate concha bullosa (n=3/51, 5.88% unilateral and n=6/51, 11.76% bilateral), superior turbinate concha bullosa (n=2/51, 3.92% unilateral and n=1/51, 1.96% bilateral), pneumatized crista galli (n=2/51, 3.92%) and optic nerve dehiscence (n=1/51, 1.96% bilateral). \u0000Conclusion: In the adult Filipino population with CRS sampled in this study, the six most common sinonasal anatomic variants were agger nasi, superior attachment of the uncinate process to the lamina papyracea, Keros type II classification, septal deviation, optic nerve canal type 1 and anterior ethmoid artery grade 1. Pre-operatively, the PNS CT scan of every patient must be meticulously evaluated for the sinonasal anatomic variants to avoid surgical complications.","PeriodicalId":33358,"journal":{"name":"Philippine Journal of Otolaryngology Head and Neck Surgery","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42443586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}