Displaying publications 1 - 20 of 80 in total

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  1. Sazafi MS, Salina H, Asma A, Masir N, Primuharsa Putra SH
    Acta Otorhinolaryngol Ital, 2013 Dec;33(6):428-30.
    PMID: 24376301
    We report a case of keratoacanthoma in a non-sun-exposed nasal vestibule of an 84-year-old man. He presented with a progressively growing left nasal mass that had been present for 8 months. Examination showed a non-tender protruding mass arising from medial vestibular wall of the left nostril. Histopathology indicated it was a keratoacanthoma. In an elderly patient with a history of a progressively growing mass in the nose, a differential diagnosis of malignancy should be ruled out, and histological conformation is essential. To our knowledge, only a very small number of cases of nasal vestibular keratoacanthoma have been reported.
    Matched MeSH terms: Nasal Cavity*
  2. Sreetharan SS, Prepageran N
    Med J Malaysia, 2004 Dec;59(5):678-9.
    PMID: 15889573
    A teratoma is a true neoplasm composed of an assortment of tissue often alien to the site from it arises. Teratomas of the head and neck are exceedingly rare and usually present in the neonatal period. Most of these are found in the cervical region and nasopharynx. Though most tumors are benign, they are often malignant with regards to the location. Here we present a rare case of benign teratoma arising from the nasal septum and presenting for the first time in a young adult. Appropriate literature is reviewed.
    Matched MeSH terms: Nasal Cavity/pathology*; Nasal Cavity/surgery
  3. Abouammo MD, Narayanan MS, Alsavaf MB, Alwabili M, Gosal JS, Bhuskute GS, et al.
    Oper Neurosurg (Hagerstown), 2024 Sep 01;27(3):347-356.
    PMID: 38506519 DOI: 10.1227/ons.0000000000001119
    BACKGROUND AND OBJECTIVES: Expanded endonasal approaches (EEAs) have proven safe and effective in treating select petrous apex (PA) pathologies. Angled endoscopes and instruments have expanded indications for such approaches; however, the complex neurovascular anatomy surrounding the petrous region remains a significant challenge. This study evaluates the feasibility, anatomic aspects, and limitations of a contralateral nasofrontal trephination (CNT) route as a complementary corridor improving access to the PA.

    METHODS: Expanded endonasal and CNT approaches to the PA were carried out bilaterally in 15 cadaveric heads with endovascular latex injections. The distance to the PA, angle between instruments through the 2 approach portals, and surgical freedom were measured and compared.

    RESULTS: Three-dimensional DICOM-based modeling and visualization indicate that the CNT route reduces the distance to the target located within the contralateral PA by an average of 3.33 cm (19%) and affords a significant increase in the angle between instruments (15.60°; 54%). Furthermore, the vertical vector of approach is improved by 28.97° yielding a caudal reach advantage of 2 cm. The area of surgical freedom afforded by 3 different approaches (endonasal, endonasal with an endoscope in CNT portal, and endonasal with an instrument in CNT portal) was compared at 4 points: the dural exit point of the 6th cranial nerve, jugular foramen, foramen lacerum, and petroclival fissure. The mean area of surgical freedom provided by both approaches incorporating the CNT corridor was superior to EEA alone at each of the surgical targets ( P =

    Matched MeSH terms: Nasal Cavity/anatomy & histology; Nasal Cavity/surgery
  4. Husain S, Primurharsa SH
    Ear Nose Throat J, 2012 Jan;91(1):22-3.
    PMID: 22278864
    Matched MeSH terms: Nasal Cavity/parasitology*
  5. Mathew M, Sasikumar P, Vivek VJ, Kala R
    BMJ Case Rep, 2020 Oct 30;13(10).
    PMID: 33127709 DOI: 10.1136/bcr-2020-237982
    Matched MeSH terms: Nasal Cavity/surgery*
  6. Zahedi FD, Yaacob NM, Wang Y, Abdullah B
    Clin Otolaryngol, 2023 Mar;48(2):271-285.
    PMID: 35997634 DOI: 10.1111/coa.13975
    OBJECTIVES: To determine the anatomical variations of the lateral nasal wall and anterior skull base amongst populations in different geographical regions.

    DESIGN: Systematic review and meta-analysis.

    METHODS: Using PRISMA guidelines, SCOPUS and PUBMED databases were searched from inception until 1 March 2022. The regions and populations identified were from Europe, Asia, Middle East, Australia-New Zealand-Oceania, South America, North America and Africa. Random-effects model was used to estimate the pooled prevalence with 95% confidence intervals (CIs). Heterogeneity was assessed using the I2 statistic and Cochran's Q test.

    MAIN OUTCOME MEASURES: Anatomical variations of the lateral nasal wall and anterior skull base confirmed by computed tomography scan.

    RESULTS: Fifty-six articles were included with a total of 11 805 persons. The most common anatomical variation of the ostiomeatal complex was pneumatization of the agger nasi (84.1%), olfactory fossa was Keros type 2 (53.8%) and ethmoids was asymmetry of the roof (42.8%). Sphenoethmoidal and suprabullar cells have a higher prevalence in North Americans (53.7%, 95% CI: 46.00-61.33) while asymmetry of ethmoid roof more common in Middle Easterns (85.5%, 95% CI: .00-100). Bent uncinate process has greater prevalence in Asians while supraorbital ethmoid cells and Keros type 3 more common in non-Asians. The overall studies have substantial heterogeneity and publication bias.

    CONCLUSION: Certain anatomic variants are more common in a specific population. The 'approach of analysis' plays a role in the prevalence estimates and consensus should be made in future studies regarding the most appropriate 'approach of analysis' either by persons or by sides.

    Matched MeSH terms: Nasal Cavity*
  7. Zubair M, Abdullah MZ, Ahmad KA
    Comput Math Methods Med, 2013;2013:727362.
    PMID: 23983811 DOI: 10.1155/2013/727362
    The accuracy of the numerical result is closely related to mesh density as well as its distribution. Mesh plays a very significant role in the outcome of numerical simulation. Many nasal airflow studies have employed unstructured mesh and more recently hybrid mesh scheme has been utilized considering the complexity of anatomical architecture. The objective of this study is to compare the results of hybrid mesh with unstructured mesh and study its effect on the flow parameters inside the nasal cavity. A three-dimensional nasal cavity model is reconstructed based on computed tomographic images of a healthy Malaysian adult nose. Navier-Stokes equation for steady airflow is solved numerically to examine inspiratory nasal flow. The pressure drop obtained using the unstructured computational grid is about 22.6 Pa for a flow rate of 20 L/min, whereas the hybrid mesh resulted in 17.8 Pa for the same flow rate. The maximum velocity obtained at the nasal valve using unstructured grid is 4.18 m/s and that with hybrid mesh is around 4.76 m/s. Hybrid mesh reported lower grid convergence index (GCI) than the unstructured mesh. Significant differences between unstructured mesh and hybrid mesh are determined highlighting the usefulness of hybrid mesh for nasal airflow studies.
    Matched MeSH terms: Nasal Cavity/anatomy & histology*; Nasal Cavity/physiology*; Nasal Cavity/radiography
  8. Sharma HS, Abdullah JM, Othman NH, Muhamad M
    J Laryngol Otol, 1998 Jul;112(7):682-6.
    PMID: 9775307
    Sinonasal teratocarcinosarcoma is very unusual malignant neoplasm histologically consisting of an epithelial element and one or more mesenchymal components. This is a report of teratocarcinosarcoma, in a 74-year-old male, involving the right nasal cavity and ethmoids with intracranial extension. The tumour was totally resected via the craniofacial approach and the patient was given post-operative chemotherapy. Extensive tumour necrosis, rapid growth and local destruction are the prominent features of this tumour. The clinical presentation, pathological features and clinical course of this rare malignancy are discussed with a review of the literature.
    Matched MeSH terms: Nasal Cavity*
  9. Jasni S, Zamri-Saad M, Mutalib AR, Sheikh-Omar AR
    Br. Vet. J., 1991 Jul-Aug;147(4):352-5.
    PMID: 1913132
    Twenty transport-stressed goats were divided into two groups. The first group was further stressed with steroid. Pasteurella haemolytica was found at various sites in the nasal cavity of goats in this group as early as 2 weeks post-transportation. The successful isolations continued consistently with more goats having pure growth of P. haemolytica at later stages. Mild catarrh rhinitis, loss of epithelial cilia and erosions were the main lesions observed in the nasal cavity. Goats in the second group that were not given steroid injections had inconsistent bacterial isolation and less severe pathological lesions.
    Matched MeSH terms: Nasal Cavity/microbiology*
  10. Mohan SM, Reddy SC, Wei LY
    Int Ophthalmol, 2001;24(6):305-11.
    PMID: 14750567
    PURPOSE: To determine the effects of unilateral right/left nostril breathing (URNB/ULNB) and forced unilateral right/left nostril breathing (FURNB/FULNB) on intraocular pressure (IOP) and to examine the differences in the IOP during the various phases of nasal cycle.

    METHODS: Young healthy volunteers of either sex aged between 19-24 years, participated in the sessions using URNB/ULNB (n = 52) and FURNB/FULNB (n = 28). The nostril dominance was calculated from signals recorded on the PowerLab equipment, representing pressure changes at the end of the nostrils during respiration. The IOP was measured with Tono-Pen. The subjects were divided into 4 groups viz. right nostril dominant (RND), left nostril dominant (LND), transitional right nostril dominant (TRND) and transitional left nostril dominant (TLND) groups. The IOP data 'before and after' URNB/ULNB or FURNB/FULNB were compared by using paired t-test. The baseline data of IOP between the groups were analysed by using independent samples t-test.

    RESULTS: The URNB decreased the IOP in the LND and TLND (p < 0.01) and also in the RND (p < 0.05) groups but not significantly in the TRND group. The ULNB decreased the IOP in the RND group (p < 0.01) only. The FURNB significantly reduced the IOP (p < 0.05) only in the LND and RND groups. The FULNB decreased the IOP but not significantly. The baseline IOP did not differ significantly between the LND, RND, TLND and TRND groups.

    CONCLUSION: The URNB/FURNB reduced the IOP, while ULNB/FULNB failed to increase the IOP significantly. It is suggested that the lowering of IOP by URNB indicated sympathetic stimulation.

    Matched MeSH terms: Nasal Cavity/physiology*
  11. Ng RL, Rajapathy K, Ishak Z
    Med J Malaysia, 2017 10;72(5):308-310.
    PMID: 29197888 MyJurnal
    Congenital arhinia is one of the rare craniofacial malformation that may cause severe respiratory distress at birth due to upper airway obstruction. Our patient, whose abnormalities were only detected after delivery in our centre, is the first reported case of congenital arhinia in Malaysia. Contrary to popular belief that neonates are obligate nasal breather, our patient adapted well to breathing through mouth before an elective tracheostomy was performed on day four of life.
    Matched MeSH terms: Nasal Cavity/physiopathology
  12. Prepageran N, Krishnan G
    Singapore Med J, 2003 Mar;44(3):123-5.
    PMID: 12953724
    To present our experience of endoscopic electrocoagulation of sphenopalatine artery for persistent posterior epistaxis despite conservative measures.
    Matched MeSH terms: Nasal Cavity/blood supply*
  13. Ohtsuka S, Piasecki W, Ismail N, Kamarudin AS
    Parasite, 2020;27:40.
    PMID: 32463013 DOI: 10.1051/parasite/2020038
    Both sexes of Brachiella malayensis n. sp. are described on the basis of specimens found in the nostrils of narrow-barred Spanish mackerel Scomberomorus commerson (Lacepède) collected off Besut, Malaysia. The female of this species closely resembles those of B. magna Kabata, 1968 and B. cybii Pillai, Prabha et Balaraman, 1982 but is distinguishable mainly by the body size and the proportions of the cephalosome, posterior processes and caudal rami. While examining the male, we noticed a systematic inconsistency in some lernaeopodid genera. The genus Brachiella Cuvier, 1830, represented by its type-species Brachiella thynni Cuvier, 1830, and two monotypic genera Charopinopsis Yamaguti, 1963 and Eobrachiella Ho et Do, 1984, represented by Charopinopsis quaternia (Wilson, 1935) and Eobrachiella elegans (Richiardi, 1880), respectively, share distinct synapomorphies in the embracing (vs. pinching) elongate male maxilliped and the female trunk with a pair of long, cylindrical ventroposterior processes (in addition to a pair of modified caudal rami), both of which are involved in their unique reproductive strategy. The latter two genera are herewith relegated to junior synonyms of Brachiella.
    Matched MeSH terms: Nasal Cavity/parasitology
  14. Vincent TE, Gendeh BS
    Med J Malaysia, 2010 Jun;65(2):108-11.
    PMID: 23756792 MyJurnal
    Chronic rhinosinusitis (CRS) remains a prevalent disease and a major cause of morbidity for many patients and functional endoscopic sinus surgery (FESS) is the gold standard for the treatment of CRS. Many factors contribute to the development of CRS, among others nasal anatomic variation. The authors aim to study the association of concha bullosa and deviated nasal septum with CRS patients requiring FESS amongst the diversified multiethnic Malaysian race. The records of 137 patients with CRS who had undergone FESS between March 2002 and October 2006 at the Department of Otorhinolaryngology, Head and Neck Surgery of the Hospital Universiti Kebangsaan Malaysia (HUKM), Kuala Lumpur were retrospectively reviewed. The data revealed that deviated nasal septum (DNS) and concha bullosa (CB) were the two commonest anatomical variations in the nasal cavity. In this study, CB was statistically significant amongst the females and in the Chinese and Indian ethnic groups. DNS is also prevalent but has no significant statistical relationship with sex, age, ethnic group in the local context. CB and DNS are coincidental variations and this study disprove that DNS is associated with CB in its development and pathogenesis of CRS. The mere presence of both these conditions also does not predispose the patients to CRS in the adjacent paranasal sinuses.
    Matched MeSH terms: Nasal Cavity
  15. Chew YK, Cheong JP, Brito-Mutunayagam S, Khir A, Prepageran N, Mun KS
    Med J Malaysia, 2011 Mar;66(1):62-3.
    PMID: 23765147
    Olfactory neuroblastoma is a rare, slow growing, malignant tumour of neuroectodermal origin that begins in neuroepithelial cells of the olfactory membrane. A metastatic rate of 20% to 60% is reported with the most common site being the cervical lymph node. Other sites include the parotid glands, skin, lungs, bone, liver, orbit, spinal cord and spinal canal. We describe a case of olfactory neuroblastoma presented to us with scalp metastasis.
    Matched MeSH terms: Nasal Cavity
  16. Harvinder S, Rosalind S, Gurdeep S
    Med J Malaysia, 2008 Dec;63(5):377-8.
    PMID: 19803294 MyJurnal
    The management of epistaxis remains to be a challenging problem for most ENT surgeon especially posterior epistaxis. Most cases are managed by placement of posterior nasal packs or balloons and failure leads to more invasive techniques, involving ligation of the internal maxillary artery. The above management is associated with significant patient complication and morbidity. Endoscopic ligation or cauterization of the sphenopalatine artery has emerged as a viable and minimally invasive alternative. We have performed endoscopic cauterization of nine sphenopalatine arteries in eight patients with no further episodes of epistaxis and complications, with an average follow-up of 25 months. The mean age of the patients was 52.75 years. Fifty percent of the patients had a history of hypertension.
    Matched MeSH terms: Nasal Cavity/blood supply; Nasal Cavity/surgery
  17. Shahrizal TA, Prepageran N, Rahmat O, Mun KS, Looi LM
    Ear Nose Throat J, 2009 Feb;88(2):786-9.
    PMID: 19224479
    Extramedullary plasmacytoma is a rare plasma cell proliferative disorder with a predilection for the head and neck region. Occasionally, it presents as a solitary lesion in the nasal cavity. We report a case of an isolated lesion in the middle turbinate of the right nasal cavity. The lesion was completely excised via an endoscopic approach. We also review the pathology and management of plasmacytomas in general.
    Matched MeSH terms: Nasal Cavity/pathology*; Nasal Cavity/surgery
  18. Yogeetha R, Raman R, Quek KF
    Singapore Med J, 2007 Apr;48(4):304-6.
    PMID: 17384876
    This study aims to assess the difference in nasal patency and resistance to temperature changes objectively and subjectively.
    Matched MeSH terms: Nasal Cavity/anatomy & histology; Nasal Cavity/physiology
  19. Idris N, Lim LH
    J Pediatr Hematol Oncol, 2012 May;34(4):e134-6.
    PMID: 22430585 DOI: 10.1097/MPH.0b013e31824410e3
    Most invasive fungal sinusitis occurs in immunocompromised adult patients. We present the case study of a 12-year-old boy diagnosed with acute myeloblastic leukemia undergoing chemotherapy. He developed a progressive darkening discoloration over the dorsum of the nose that turned into an eschar. Nasal endoscopy revealed extensive necrotic tissue in the nasal cavity mucosa, inferior and middle turbinates, and septal cartilage that extended to the eschar of the skin over the nasal dorsum. Histopathology showed aspergillus invasive fungal rhinosinusitis.
    Matched MeSH terms: Nasal Cavity/microbiology; Nasal Cavity/pathology
  20. Liew YT, Soo SS, Nathan AM, Manuel AM
    Auris Nasus Larynx, 2017 Oct;44(5):635-638.
    PMID: 27793496 DOI: 10.1016/j.anl.2016.10.001
    Congenital bony nasal stenosis (CBNS) is a very rare but life-threatening cause of airway obstruction in neonates and infants. This review aims to assess the presentation and early airway management of 4 new cases of craniosynostosis with bilateral nasal cavity stenosis. Patients were treated with endoscopic endonasal widening of the nasal cavity and stenting. All patients were extubated well post-operatively with resolution of symptoms. They remained asymptomatic with stents in situ for at least 6 months with no complications reported. Minimally invasive endoscopic endonasal widening of the nasal cavity with stenting is an effective and safe way of addressing nasal cavity stenosis.
    Matched MeSH terms: Nasal Cavity/abnormalities*; Nasal Cavity/surgery
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