MR and CT imaging features of sino-nasal organized hematomas

Eissa, Lamya; Eid, Mohamed; Razek, Ahmed Abdel Khalek Abdel

doi:10.1007/s11282-020-00450-1

Cited by 6 publications

(4 citation statements)

References 36 publications

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“…Imaging findings of OH are internally heterogeneous, reflecting pathological bleeding and fibrous changes [12] , [13] , [14] , [15] . In typical cases, T1-weighted MRI shows heterogenous intensity and T2-weighted MRI contains high-intensity and hypointense peripheral rim [ 1 , 2 , 4 , 6 , 14 , [16] , [17] , [18] ] and, as in our case, helped for the diagnosis of OH [17] . Previous studies reported that the frond-like pattern of contrast enhancement is one of the characteristic imaging findings of OH that helps to differentiate from other simulating lesions [ 13 , 17 ].…”

Section: Discussionsupporting

confidence: 62%

Organized hematoma of the sphenoid sinus with epistaxis

Kitaoka,

Yoshida,

Kumagami

2024

Radiology Case Reports

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Section: Discussionsupporting

confidence: 62%

Organized hematoma of the sphenoid sinus with epistaxis

Kitaoka,

Yoshida,

Kumagami

2024

Radiology Case Reports

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“…They are often mistaken as malignancies due to their aggressive clinical appearance and diagnostic imaging findings that favor advanced disease [16,17]. CT findings of sinonasal organized hematomas include expansile mass with heterogenous patchy enhancement in post-contrast images causing adjacent bony changes [2,5,18,19]. MRI findings include a well-demarcated mass from the surrounding structures with nodular and patchy enhancement on post-contrast T1weighted imaging and marked heterogeneous signal intensity in T2-weighted imaging with the hypointense peripheral rim indicating the fibrous capsule [3,5,20,21].…”

Section: Discussionmentioning

confidence: 99%

Successful Endoscopic Transsphenoidal Approach Treatment of Sphenoid Sinus Organized Hematoma Causing Visual Deficit: A Case Report

Choi,

Jeong

et al. 2023

Medicina

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Background: Organized hematoma in the sphenoid sinus is rare, but serious complications, such as visual deficits, can occur. Three such case reports have been published previously in the literature; however, none have achieved complete recovery of the vision. Case presentation: A 69-year-old male patient was referred to the ear, nose, and throat department with an expansile soft tissue mass filling the right sphenoid sinus and blurry vision in his right eye. Complete mass removal was achieved by a wide opening of the sphenoid sinus via an endoscopic transsphenoidal approach, followed by cauterization of the feeding artery and coverage by a nasoseptal flap. The patient’s vision was restored after the operation, and he declared no visual symptoms until the latest follow-up (one year after the surgery). Conclusions: Complete excision with an endoscopic endonasal transsphenoidal approach can restore visual deterioration caused by a sphenoid sinus organized hematoma.

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“…These signal voids are centrally located. 11 In nearly 1 of every 8 patients with isolated sphenoid sinus opacifications, the diagnosis is fungal rhinosinusitis. 12 Sinus wall thickness enhancements, opacification inside the sinus, and sclerosis of the sphenoid sinus wall are thought to be related to fungal sphenoid sinusitis.…”

Section: Discussionmentioning

confidence: 99%

Value of Hounsfield Units in the Evaluation of Isolated Sphenoid Sinus Lesions

Tunç

Yazıcı

Aytaç

et al. 2021

Allergy�Rhinol (Providence)

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Radiologic findings of fungal sinus disease are generally opacification in paranasal computed tomography (CT) images. The Hounsfield unit (HU) is a standardized objective unit that is also suitable for measuring remodeling and opacifications on CT scans of bone sections of patients with chronic rhinosinusitis. We hypothesized that HU values could provide valuable information in isolated sphenoid sinus lesions before surgery. Between 2012 and 2019, 35 patients underwent functional endoscopic sinus surgery for sphenoid sinus lesions. Tissues obtained from the sphenoid sinus were divided into two groups, fungal and nonfungal, according to the findings of histopathologic examinations. HU values were measured in sphenoid sinus sections on paranasal CT scans of these two groups. Differences in mean and maximum HU values between the two groups were statistically significant ( p < .05). The maximum HU values calculated from the sphenoid sinus were 435.08 and 196.23 ( p ≤ .05) in the fungal group and nonfungal group, respectively. The mean HU values calculated from the sphenoid sinus were 64.31 and 29 ( p ≤ .05) in the fungal and nonfungal groups, respectively. At the maximum cutoff value of 241, the sensitivity and specificity of the HU maximum were 84.6% and 77.3%, respectively. At the mean cutoff value of 41.5, the sensitivity and specificity of the HU mean were 76.9% and 86.4%, respectively. HU is an objective value used in radiographic density measurement. The HU values were higher in fungal lesions than in nonfungal inflammations, and they are useful in preoperative measurement.

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MR and CT imaging features of sino-nasal organized hematomas

Cited by 6 publications

References 36 publications

Organized hematoma of the sphenoid sinus with epistaxis

Organized hematoma of the sphenoid sinus with epistaxis

Successful Endoscopic Transsphenoidal Approach Treatment of Sphenoid Sinus Organized Hematoma Causing Visual Deficit: A Case Report

Value of Hounsfield Units in the Evaluation of Isolated Sphenoid Sinus Lesions

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