Inverted papilloma of the nasal cavity and the paranasal sinuses: using CT for primary diagnosis and follow-up.

Dammann, Florian; Pereira, P.; Laniado, M.; Plinkert, Peter K.; Löwenheim, Hubert; Claussen, C. D.

doi:10.2214/ajr.172.2.9930821

Cited by 70 publications

(61 citation statements)

References 13 publications

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“…[3][4][5][6][7][8][9][10][11][12] Although CT and MR imaging are useful for preoperative assessment of sinonasal IP, differentiation of IP from other malignant sinonasal tumors is often difficult because of a significant overlap of the imaging features. [13][14][15][16][17][18][19] Barnes et al 20 described a distinctive gross mucosal morphology of IP, a so-called convoluted cerebriform pattern (CCP), which can be reflected on MR imaging by the characteristic alternating hypointense and hyperintense bands on T2-weighted and contrast-enhanced T1-weighted images, as reported by Ojiri et al 17 and supported by Maroldi et al 19 years later. It would be useful for planning therapeutic strategies if the CCP on MR imaging can suggest the preoperative diagnosis of IP, because more aggressive surgical approaches would be needed for IPs concomitant with SCC and other malignant sinonasal tumors.…”

mentioning

confidence: 90%

Sinonasal Inverted Papilloma: Value of Convoluted Cerebriform Pattern on MR Imaging

Jeon¹,

Kim²,

Chung³

et al. 2008

AJNR Am J Neuroradiol

128

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mentioning

confidence: 90%

Sinonasal Inverted Papilloma: Value of Convoluted Cerebriform Pattern on MR Imaging

Jeon¹,

Kim²,

Chung³

et al. 2008

AJNR Am J Neuroradiol

128

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“…Inverted papilloma comprises approximately 4% of all nasal polyps [25]. Its unilateral involvement, along with a lobular surface pattern on endoscopy and typical histological pattern of inversion of papillae is diagnostic of inverted papilloma.…”

Section: Fig 1 Ct Scan Findingsmentioning

confidence: 99%

A Review of the Clinicopathological and Radiological Features of Unilateral Nasal Mass

Nair

James

Awasthi

et al. 2011

Indian J Otolaryngol Head Neck Surg

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Unilateral sinonasal pathology are common presentations but are regarded with caution as neoplastic conditions during their early stages may mimic an inflammatory pathology. The aim of the review was to analyse the varied presentations of patients with unilateral nasal mass and to identify features suggestive of neoplastic pathology. A retrospective review of all cases of unilateral nasal mass/polyp from Jan 09 to Jan 10 presenting at a tertiary care hospital were analysed. The patients were grouped as per their histopathological diagnosis as inflammatory and neoplastic. The demographic data, presenting symptoms, radiological and histopathological findings were compared between the two groups. Out of the 53 patients of unilateral nasal mass, 44 (83.1%) had inflammatory conditions and 9 (16.9%) had neoplastic conditions. Benign nasal polyp and inverted papilloma were the commonest inflammatory and neoplastic condition. Neoplastic conditions were significantly commoner in males (P = 0.0315) and in the age group above 50 years (P = 0.0046). Epistaxis and extranasal symptoms like facial pain, dental and orbital complaints were found to be significantly higher in neoplastic conditions. Neoplastic lesions of nose and paranasal sinus are one of the most challenging conditions that otolaryngologists have to diagnose and treat due to their hidden nature and late presentations. In our review neoplastic conditions were found to be higher in elderly male with epistaxis, extranasal symptoms and presence of extensive soft tissue involvement and bony destruction on CT scan. The clinician should have a high index of suspicion to rule out a neoplastic aetiology in all cases of unilateral nasal mass.

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“…This allows for the proper surgical approach and extent to be performed. Nevertheless, bony walls; less commonly, sclerotic bony changes can be seen (77)(78)(79). However, the CT findings commonly observed in IP are highly aspecific.…”

Section: Macroscopic Aspectsmentioning

confidence: 99%

Current advances in the basic research and clinical management of sinonasal inverted papilloma (Review)

Sauter

Matharu²,

Hörmann³

et al. 2007

Oncol Rep

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Abstract. Inverted papilloma (IP) is a benign sinonasal lesion that has a known propensity for recurrence, local aggressiveness and an association with transformation to squamous cell carcinoma. Due to the high rate of recurrence, association with malignancy and a tendency of multicentricity, the surgical approaches to treatment are controversial. Over the years there has been a slow evolution from aggressive (en bloc) resection by lateral rhinotomy to endoscopic techniques. This progress corresponds to the advances that have been made in endoscopic sinus surgery over the past 15 years. Technological advances have allowed the detection of sinonasal IP before its extension beyond the sinonasal region, thus enabling minimally invasive techniques to be used in the treatment of selected cases of IP. Differences in recurrence rates were not observed for endoscopic management as compared with lateral rhinotomy or sublabial degloving approaches. In terms of aetiology there is certain evidence that the presence of HPV in IP could be predictive of malignant transformation. Although IPs are monoclonal proliferations, they do not fit the profile of a prototypic precursor lesion. In contrast, an increased EGFR and TGF-· expression is associated with early events in IP carcinogenesis. Parameters such as hyperkeratosis, squamous epithelial hyperplasia and a high mitotic index are negative prognostic indicators, which could be useful in the future follow-up of patients with IP. Present literature should encourage us to recommend the use of a uniformly accepted staging system. The propensity for delayed recurrences and the maximal 13% incidence of malignant transformation mandates careful, long-term follow-up.

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Inverted papilloma of the nasal cavity and the paranasal sinuses: using CT for primary diagnosis and follow-up.

Cited by 70 publications

References 13 publications

Sinonasal Inverted Papilloma: Value of Convoluted Cerebriform Pattern on MR Imaging

Sinonasal Inverted Papilloma: Value of Convoluted Cerebriform Pattern on MR Imaging

A Review of the Clinicopathological and Radiological Features of Unilateral Nasal Mass

Current advances in the basic research and clinical management of sinonasal inverted papilloma (Review)

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