Maxillary sinus hypoplasia and superior orbital fissure asymmetry

Bassiouny, Ahmed; Newlands, W. J.; Al-Shatri, Hussein; Zaki, Yehia

doi:10.1288/00005537-198204000-00014

Cited by 46 publications

(35 citation statements)

References 9 publications

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“…9 Maxillary sinus hypoplasia is reported in 1.7 to 10.4% of patients with sinonasal symptoms. 10,11 To the best of our knowledge, this is the third case report of total paranasal sinus aplasia in the English language literature and the first ever case reported in India. While dealing with paranasal sinus disease, paranasal sinus aplasia and hypoplasia should be kept in mind because: First, the prevalence of frontal and sphenoidal sinus aplasia or hypoplasia have been shown to be higher in patients with cystic fibrosis or primary ciliary dyskinesia.…”

Section: Discussionmentioning

confidence: 74%

Bilateral Total Aplasia of Paranasal Sinuses: A Rare Case Report

Joshi¹,

Sundarray²,

Sahoo³

2015

An International Journal Clinical Rhinology

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Paranasal sinus anatomical anomalies with unknown etiology are common. Paranasal sinus-related diseases are associated with so high rate of morbidities, it becomes essential to identify the structure and pathophysiology of the paranasal sinuses. Computed tomography (CT) is a valuable tool in displaying its anatomy, any anatomic variations and diseases. As paranasal sinus development is a complex and long-lasting process, there are great structural variations between individuals. Maxillary and/or frontal sinus aplasia or hypoplasia are more common than the other types. Several degrees and combinations of aplasias and hypoplasias have been reported; however, there is only two case of total paranasal sinus aplasia in the literature. Here, we present the third case of total paranasal sinus aplasia, and the first ever case reported from India.

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Section: Discussionmentioning

confidence: 74%

Bilateral Total Aplasia of Paranasal Sinuses: A Rare Case Report

Joshi¹,

Sundarray²,

Sahoo³

2015

An International Journal Clinical Rhinology

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“…There is some variability in the reported incidence of unilateral MSH. In contrast to Karmody et al 8 who reported a 1.73% incidence, Bassiouny et al 2 reported a 3.6% and a recent study by Bolger et al 3 reported 10.4%. This could be attributed to the different methods of diagnosing MSH.…”

Section: Discussionmentioning

confidence: 77%

“…Karmody et al 8 defined the criteria for a small sinus based on assessment of the pneumatization of the zygomatic process (lateral extent), and pneumatization of the alveolar process (inferior extent). Two additional criteria were used by Bassiouny et al 2 These included failure of the sinus to develop cephalad toward the orbit leaving the inferior orbital wall in its original curved (concave upward) position, with the infraorbital foramen near the center of the maxilla, and diminished expansion of the sinus medially toward the nasal cavity with resulting lateral displacement of the nasal wall.…”

Section: Discussionmentioning

confidence: 99%

“…2 They also obtained a "volume estimate ratio" by dividing the volume estimate of the hypoplastic sinus by the volume estimate of the contralateral normal sinus. Acknowledging the different methods of analysis and diagnostic criteria used in the various studies, it is interesting to note that when the more severe forms of hypoplasia described by Bolger et al 3 The pathogenesis ofMSH is unknown.…”

Section: Discussionmentioning

confidence: 99%

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Hypoplasia of the Maxillary Antrum: Anatomic Abnormalities, Diagnostic Difficulties and Surgical Implications

Hanna

Levine²,

Timen³

et al. 1993

American Journal of Rhinology

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ABSTRACfUsing conventional radiography, maxillary sinus hypoplasia (MSH) may be misdiagnosed as chronic infective sinusitis in patients with chronic nasal symptoms. Commonly associated anatomical abnormalities of the lateral nasal wall and orbit may also be missed. Failure to recognize these abnormalities is fraught with hazards should sinus surgery be contemplated on such patients. With the use ofhigh resolution computed tomography scans and rigid nasal endoscopy, MSH and associated subtle anatomic abnormalities of related structures are diagnosed with higher precision and surgical complications minimized. The incidence, pathogenesis, and classification of MSH is reviewed. The clinical and surgical implications of associated anomalies of the lateral nasal wall are discussed. Two illustrative cases are presented. (Am J Rhinology 7: [105][106][107][108][109][110] 1993) H ypoplasia of the maxillary sinus has been described as early as 1912. 1 Early descriptions were confined to the maxillary antrum with little attention given Am J Rhinology to adjacent anatomic structures, namely the lateral nasal wall and the orbit. This was, at least partly, due to the suboptimal visualization of these structures using traditional methods of clinical examination and plain roentgenography.Since the embryology and development of the nose, sinuses, and orbit are closely related, anomalies of the maxillary antrum are often associated with abnormal anatomy of the lateral nasal and orbital walls.2,3Using conventional roentgenography, maxillary sinus hypoplasia (MSH) could be misdiagnosed as an opacified maxillary sinus suggesting chronic infective sinusitis in patients with chronic nasal symptoms. More importantly, associated anatomical abnormalities of the lateral nasal wall and orbit may be missed. Failure to recognize these abnormalities is fraught with hazards should sinus surgery be contemplated on such patients.The use of computed tomography (CT) scans and the advent of nasal endoscopy have revolutionized the diagnosis and management of nasal-sinus disorders. With the improved visualization offered, subtle anatomic abnormalities are diagnosed with greater accuracy and surgical hazards are minimized.This present report describes MSH in two patients and emphasizes the advantages of using high resolution coronal CT scans and nasal endoscopy in evaluating such patients. A literature review describing the incidence, pathogenesis, classification, as well as the clinical and surgical implication of MSH is presented. CASE REPORTS Case 1A 7-y.ear-old male presented to his family physician WIth a 4-month history of intermittent bilateral 105

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“…Computed tomography (CT) is now the best measure for imaging the sinuses [7], and clinically significant ethmoid disease may be present with relatively minimal plain radiological findings that would be quite evident on CT scan [8][9][10].…”

Section: Mms Taher Os Haddad Ct Scan Findings Of Occult Sinus Pathomentioning

confidence: 99%

CT Scan Findings of Occult Sinus Pathology in Asymptomatic Individuals

Taher

Haddad

1992

Ann Saudi Med

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One hundred-fourteen computed tomographic (CT) scans of the skull region were revised for occult sinus pathology in asymptomatic individuals. The scans were conducted to investigate other skull regions. None of the patients had nasal or sinus symptoms. Twenty-nine percent of the ethmoid sinuses had occult pathology mostly in the form of thickened mucous membrane. Occult pathology occurred in 14% of maxillary sinuses, 4.8% of the frontal sinuses, and 4.6% of the sphenoid sinuses. As ethmoids carry a high incidence for possible occult pathology, isolated clouding of the ethmoids in CT scans should not be regarded as a cause for patients' symptoms especially in headache investigation. MMS Taher, OS Haddad, CT Scan Findings of Occult Sinus Pathology in Asymptomatic Individuals. 1992; 12(5): 456-458Inflammatory and allergic changes of the paranasal sinuses can usually be demonstrated radiologically. These are usually in the form of mucosal thickening, air fluid level, or total sinus opacification. In chronic cases of sinusitis it is possible to have thickened sclerotic sinus walls [1].However, conventional radiography showed that between 15% and 26% of asymptomatic individuals have abnormal x-ray findings of probable inflammatory or allergic origin [2,3].Also, mucocele of the maxillary sinus is not a rare incidental radiological finding. It is present in almost 10% of cases [4].Again, in some cases, plain radiography failed to grasp gross pathology in the paranasal sinuses. Watt-Boolsen and Karle (1977) [5], and Pfleiderer et al (1984) [6], discovered fluid in the antral puncture in 24% and 9%, respectively of radiologically normal sinuses, but clinically suspected to have sinusitis.Computed tomography (CT) is now the best measure for imaging the sinuses [7], and clinically significant ethmoid disease may be present with relatively minimal plain radiological findings that would be quite evident on CT scan [8][9][10].In this work, CT scans of paranasal sinuses were studied for possible occult pathology in asymptomatic individuals. Material and MethodsOne hundred fourteen CT scans of the skull region were studied. None of the scans was conducted to investigate the paranasal sinuses specifically, but were to study the orbit, sella turcia, facial bones, or parotid region.Some of the paranasal sinuses came to appear incidentally in some of the cuts. The age range of patients was between 18 and 61 years, with a mean age of 36 years. Fifty-four percent of the patients were males.The CT scans were reviewed by the author retrospectively to locate any benign occult pathology, namely sinus

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Maxillary sinus hypoplasia and superior orbital fissure asymmetry

Cited by 46 publications

References 9 publications

Bilateral Total Aplasia of Paranasal Sinuses: A Rare Case Report

Bilateral Total Aplasia of Paranasal Sinuses: A Rare Case Report

Hypoplasia of the Maxillary Antrum: Anatomic Abnormalities, Diagnostic Difficulties and Surgical Implications

CT Scan Findings of Occult Sinus Pathology in Asymptomatic Individuals

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