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Park MJ, Choi JW, Kim JH, Chung YS, Yu MS. Sinonasal Organizing Hematoma: Demographics, Diagnosis, and Treatment Outcomes of 112 patients. Laryngoscope 2024; 134:1581-1590. [PMID: 37772801 DOI: 10.1002/lary.31057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 08/17/2023] [Accepted: 09/06/2023] [Indexed: 09/30/2023]
Abstract
INTRODUCTION Sinonasal organizing hematoma (OH) is a rare, nonneoplastic lesion that often presents with epistaxis, a reddish mass, and destruction of the involved sinonasal structures. Due to its rarity, the demographics, diagnostic modalities, treatment strategies, and outcomes have not yet been studied in a large, long-term study. MATERIALS AND METHODS Retrospect cohort of 112 sinonasal OH patients treated between 1997 and 2020 in a tertiary, university hospital were evaluated. Demographics, systemic comorbidities, sinonasal surgery history, serum laboratory tests, radiological findings, and treatment results were collected. The present study aimed to assess the accuracy of preoperative computed tomography (CT), Gadolinum-enhanced magnetic resonance (MR), and punch biopsies in detecting sinonasal OH as the most likely diagnosis. In addition, incidental differences by age and year of diagnosis were calculated using the Poisson log-linear regression model. RESULTS The median age was 44, and 58% were male. Fewer than 20% of these cases had a chronic systemic comorbidity, bleeding tendency, or sinonasal surgery history. MR had the highest accuracy of (87%) to detect sinonasal OH as the most likely diagnosis, compared with contrast-enhanced-CT (53%), punch biopsy (49%), and non-enhanced-CT (16%) (all <0.05). Sinonasal OH incidence did not vary by age, but the yearly rate significantly increased by 1.05 times over 23 years (p < 0.05). Notably, 84% of 112 patients received surgical removal through the assistance of an endoscope, and none had substantial bleeding without preoperative embolization. CONCLUSION Sinonasal OH was observed regardless of age, sex, systemic comorbidities, bleeding tendency, prior sinonasal surgery, or trauma. Preoperative MR gives the highest accuracy for detecting this disease. Sinonasal OH may be safely managed with endoscopic-assisted surgery removal without embolization. LEVEL OF EVIDENCE 4 Laryngoscope, 134:1581-1590, 2024.
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Affiliation(s)
- Marn Joon Park
- Department of Otorhinolaryngology-Head & Neck Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- Department of Otorhinolaryngology-Head and Neck Surgery, Inha University Medical Center, Inha University School of Medicine, Incheon, Korea
| | - Ji-Won Choi
- Department of Otorhinolaryngology-Head & Neck Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ji Heui Kim
- Department of Otorhinolaryngology-Head & Neck Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Yoo-Sam Chung
- Department of Otorhinolaryngology-Head & Neck Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Myeong Sang Yu
- Department of Otorhinolaryngology-Head & Neck Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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R A, G K N, Shetty R, Gopal NK. Sinonasal Organised Haematoma- A Case Report and Review of Literature. Indian J Otolaryngol Head Neck Surg 2023; 75:1009-1013. [PMID: 37206709 PMCID: PMC10188838 DOI: 10.1007/s12070-023-03579-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 02/12/2023] [Indexed: 02/25/2023] Open
Abstract
Sinonasal organised haematoma (SOH) is an uncommon, benign condition that can be locally aggressive. SOH can be mistaken for a malignant tumour but the characteristic imaging findings and histopathology facilitate the diagnosis of an organised haematoma. We report a 26 year old male patient presenting with unilateral nasal obstruction and painless epistaxis, which are the most common presenting symptoms of sinonasal tumour lesions. Based on the clinical features, age, radiological investigation, intraoperative finding, location of the lesion and histopathological examination; a diagnosis of SOH was arrived at. Surgical excision utilized the COBLATION technology and endoscopic complete removal of the nasal mass was done. Intraoperatively minimal bleeding was encountered. On histopathology, haematoma at the center and fibrosis at the periphery was noted. To our knowledge, this is the first reported case of SOH excision using Coblator. No recurrence was seen in subsequent follow ups. Although SOH can be mistaken for a malignant tumour, the characteristic imaging and histopathology findings facilitate the diagnosis of an organised haematoma.
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Affiliation(s)
- Ashwini R
- Department of ENT, Sri Sathya Sai Institue of Higher Medical Sciences, EPIP Zone, C 302, Sahana Block, SSSIHMS, Whitefield, 560066 Bengaluru, Karnataka India
| | - Narayana G K
- Department of ENT, Sri Sathya Sai Institue of Higher Medical Sciences, EPIP Zone, C 302, Sahana Block, SSSIHMS, Whitefield, 560066 Bengaluru, Karnataka India
| | - Reema Shetty
- Department of ENT, Sri Sathya Sai Institue of Higher Medical Sciences, EPIP Zone, C 302, Sahana Block, SSSIHMS, Whitefield, 560066 Bengaluru, Karnataka India
| | - Naveen Kumar Gopal
- Department of ENT, Sri Sathya Sai Institue of Higher Medical Sciences, EPIP Zone, C 302, Sahana Block, SSSIHMS, Whitefield, 560066 Bengaluru, Karnataka India
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Sinha D, Dasegowda G, Gayatri Y, Viswamitra S. Sino Nasal Organizing Hematoma Masquerading as Sino-Nasal Neoplasm. Indian J Otolaryngol Head Neck Surg 2022; 74:4669-4672. [PMID: 36742895 PMCID: PMC9895526 DOI: 10.1007/s12070-021-02982-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 11/08/2021] [Indexed: 02/07/2023] Open
Abstract
Sino-nasal organized hematoma (OH) is an uncommon, benign condition of the sinuses. It mimics neoplasm in its clinical presentation as well on imaging appearance. Careful evaluation of the clinical history and imaging features is essential to avoid misdiagnosis. We present an interesting case of sino-nasal organizing hematoma in a 26-year-old male patient, masquerading as sino-nasal neoplasm.
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Affiliation(s)
- Dimpi Sinha
- Department of Radiology, Shri Sathya Sai Institute of Higher Medical Sciences, EPIP Zone, Whitefield, Bengaluru, 560066 India
| | | | - Yeduvaka Gayatri
- Department of Radiology, Shri Sathya Sai Institute of Higher Medical Sciences, EPIP Zone, Whitefield, Bengaluru, 560066 India
| | - Sanjay Viswamitra
- Department of Radiology, Shri Sathya Sai Institute of Higher Medical Sciences, EPIP Zone, Whitefield, Bengaluru, 560066 India
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Jagadeeswaran VU, Vallur S, Shivanand JS. Management of Angiomatous Antrochoanal Polyp: Our Experience. Indian J Otolaryngol Head Neck Surg 2022; 74:1082-1087. [PMID: 36452723 PMCID: PMC9702278 DOI: 10.1007/s12070-020-02148-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 09/14/2020] [Indexed: 11/24/2022] Open
Abstract
Antrochoanal polyps are the most common type of choanal polyp. Angiomatous polyp is a rare subtype of Antrochoanal polyp that might be misdiagnosed as malignant lesion due to its clinical features. A retrospective observational study was conducted in a tertiary care hospital in patients who were diagnosed with Angiomatous Antrochonal polyp that underwent functional endoscopic sinus surgery from 2017 to 2020. We analyzed the clinical symptoms, radiological findings, and pathological features of all patients diagnosed with Angiomatous Antrochonal polyp. Unilateral nasal obstruction, rhinorrhea, and epistaxis were the common symptoms. Antrochoanal polyps all originated from maxillary sinus and extended to nasal cavity with or without involving the nasopharynx. Expansile mass with surrounding bony destruction are typical on computed tomography imaging but specific for Angiomatous Antrochoanal polyp. The magnetic resonance revealed high signal intensity on T1-weighted images and hypo-intense rim on T2-weighted images. Computed tomography and magnetic resonance together might give rise to more accurate diagnosis of Angiomatous Antrochoanal polyp. Incisional biopsy does help if the clinician suspects a malignant lesion. Complete removal is treatment of choice for Angiomatous Antrochoanal polyp.
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Affiliation(s)
| | - Srujan Vallur
- Department of ENT, 12 Air Force Hospital, Akash Vihar, Kunraghat, Gorakhpur 273002 India
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Sekino H, Ishii S, Sato H, Nomoto M, Kawana S, Suenaga H, Kuroiwa D, Ito H. Three cases of organized hematoma of the maxillary sinus in patients who underwent preoperative arterial embolization. Radiol Case Rep 2021; 16:3945-3949. [PMID: 34712374 PMCID: PMC8529391 DOI: 10.1016/j.radcr.2021.09.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/11/2021] [Accepted: 09/16/2021] [Indexed: 01/03/2023] Open
Abstract
Organized hematoma (OH) is benign tumor in the maxillary sinus. The standard treatment for OH is complete surgical resection, however massive bleeding can occur during the procedure, albeit rarely. Some reports have suggested preoperative embolization is useful for reducing the volume of intraoperative bleeding. We report 3 cases of OH in the maxillary performed preoperative embolization. We identified the feeding arteries by angiography or IVR-CT, and we embolized them using Gelatin sponge particles. The embolized artery was the maxillary artery or both the maxillary and the facial artery. There were no major complications as a result of embolization. The mean fluoroscopy time was 35.8 minutes, and the mean fluoroscopy dose was 329.3 mGy. Tumor resection was performed the next day after arterial embolization. The mean bleeding volume for surgery was 383.3 ml, and the mean operative time was 194 minutes. No recurrence was observed in any of the cases over a 4-year follow-up period. We considered that it is possible that preoperative artery embolization is useful for decreasing intraoperative bleeding volume. Although the methods and usefulness of embolization await future reports, it is a technique that should be considered preoperatively because of its potential to prevent massive bleeding.
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Affiliation(s)
- Hirofumi Sekino
- Department of Radiology and Nuclear Medicine, Fukushima Medical University, Fukushima, Japan,Corresponding author. Hirofumi Sekino.
| | - Shiro Ishii
- Department of Radiology and Nuclear Medicine, Fukushima Medical University, Fukushima, Japan
| | - Hirohito Sato
- Department of Otorhinolaryngology, Fukushima Medical University, Fukushima, Japan
| | - Mika Nomoto
- Department of Otorhinolaryngology, Fukushima Medical University, Fukushima, Japan
| | - Satoshi Kawana
- Department of Diagnostic Pathology, Fukushima Medical University, Fukushima, Japan
| | - Hiroki Suenaga
- Department of Radiology and Nuclear Medicine, Fukushima Medical University, Fukushima, Japan
| | - Daichi Kuroiwa
- Department of Radiology and Nuclear Medicine, Fukushima Medical University, Fukushima, Japan
| | - Hiroshi Ito
- Department of Radiology and Nuclear Medicine, Fukushima Medical University, Fukushima, Japan
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Sommer F. Rare Diseases of the Nose, the Paranasal Sinuses, and the Anterior Skull Base. Laryngorhinootologie 2021; 100:S1-S44. [PMID: 34352902 PMCID: PMC8354577 DOI: 10.1055/a-1331-2469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Due to their low incidence and thus resulting limited diagnostic criteria as well as therapeutic options, rare diseases of the nose, the paranasal sinuses, and the anterior skull base are a significant challenge. The value as of which a disease has to be considered as rare amounts to a maximum of 5 patients per 10 000 people. Within these diseases, however, there are extreme differences. Some rare or orphan diseases like for example the inverted papilloma belong to regularly diagnosed and treated diseases of larger departments of oto-rhino-laryngology whereas other rare diseases and malformations have only been described in less than 100 case reports worldwide. This fact emphasizes the necessity of bundling the available experience of diagnostics and therapy. The present article gives an overview about rare diseases of the nose, the paranasal sinuses, and the anterior skull base from the field of diseases/syndromes of the olfactory system, malformations of the nose and paranasal sinuses, ventilation and functional disorders as well as benign and malignant tumors. The classification and data on diagnostic and therapeutic options were established based on the current literature.
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Affiliation(s)
- Fabian Sommer
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Hals-Chirurgie, Universitätsklinik Ulm
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Abstract
BACKGROUND Silent sinus syndrome (SSS), organized hematoma (OH), and pneumosinus dilatans (PD) are rare, usually unilateral diseases of the maxillary sinus. Due to misinterpretation, excessive diagnostics and unnecessarily aggressive surgery or a delay in diagnostics and treatment are common. OBJECTIVE The objective of this study was to develop reasonable and comprehensible diagnostic criteria to improve diagnosis and treatment of these rare diseases. METHODS In this retrospective study, all patients treated for SSS, OH, and PD from 2012 to 2019 were identified. Patient history, diagnostic tests and results, and postoperative course were analyzed and compared with the available literature. RESULTS During the study period, 7 patients with SSS, 3 patients with PD, and 2 patients with OH were treated and available for follow-up. Comparison of these patients with the literature allowed us to develop diagnostic criteria. CONCLUSION Medical history combined with endoscopic and radiologic criteria should improve preoperative diagnosis of these three rare diseases of the maxillary sinus and help to distinguish them from other differential diagnoses. This approach should minimize morbidity for the patients.
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Affiliation(s)
- T Hildenbrand
- Klinik für Hals‑, Nasen- und Ohrenheilkunde, Universitätsklinikum Freiburg, Killianstr. 5, 79106, Freiburg, Deutschland.
| | - S B Klein
- Hals‑, Nasen- und Ohrenklinik, Universitätsklinikum Marburg, UKGM, Marburg, Deutschland
| | - N Schramek
- Hals-Nasen-Ohrenklinik, Städtisches Klinikum Karlsruhe, Karlsruhe, Deutschland
| | - R K Weber
- Hals-Nasen-Ohrenklinik, Städtisches Klinikum Karlsruhe, Karlsruhe, Deutschland
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Eissa L, Eid M, Razek AAKA. MR and CT imaging features of sino-nasal organized hematomas. Oral Radiol 2020; 37:297-304. [PMID: 32462337 DOI: 10.1007/s11282-020-00450-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 05/17/2020] [Indexed: 11/26/2022]
Abstract
AIM To describe the MR and CT imaging features of organized hematomas [OH]. METHODS A retrospective analysis of MR imaging and CT of eight patients [6 male, 2 females; age range is 6-86 years] with pathological proven OH was performed. Routine contrast MR and CT scan were done for all patients, and diffusion-weighted imaging and dynamic contrast CT were done for only five patients. Imaging analysis was done for the signal intensity, the enhancement pattern at MR imaging, the ADC value at DWI, bone remodeling at CT, and the neo-vascularization at dynamic contrast CT. RESULTS OH revealed T2 hypo-intense of the matrix in all patients with complete [n = 3] and incomplete [n = 5] marginal hypo-intensity rim. The lesions revealed a frond-like pattern of contrast enhancement of the central part of the lesion that associated with a peripheral rim of contrast enhancement. OH revealed unrestricted diffusion with high ADC value [1.7-2.5 × 10-3 cm2/s] in 5 patients. CT scan showed geographic bone remodeling and thinning of the nasal turbinates, and the sinus wall and contrast CT showed neo-vascularization with frond-like branching arteries of the central part of the lesions in five patients. CONCLUSION We conclude that MR and CT imaging findings can help in the diagnosis of OH.
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Affiliation(s)
- Lamya Eissa
- Department of Diagnostic and Interventional Radiology, Alexandria Faculty of Medicine, Alexandria, 21131, Egypt
| | - Mohamed Eid
- Department of Diagnostic and Interventional Radiology, Alexandria Faculty of Medicine, Alexandria, 21131, Egypt
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9
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A Patient With Submerged Sinonasal Angiosarcoma After Resection of Underlying Organizing Hematoma. J Craniofac Surg 2018; 29:645-647. [PMID: 29283936 DOI: 10.1097/scs.0000000000004144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
A 30-year-old female patient with facial pain diagnosed as organizing hematoma of maxillary sinus by biopsy and imaging studies, and subsequently tumor was resected via an endoscope-assisted midfacial degloving approach. The tumor was histopathologically confirmed as organizing hematoma. In 3-week follow-up, asymptomatic emerging mass was observed at the same site, and needed a revision endoscopic resection. On pathologic examination, a low-grade angiosarcoma was identified, not organizing hematoma. After postoperative radiotherapy, she has been a status of no evidence of disease. This report emphasizes that complete and delicate resection of sinonasal tumor should be made to prevent recurrence and submerged malignant potential.
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Varghese L, Mukhopadhyay S, Mehan R, Kurien R, Thomas M, Rupa V. Sinonasal organising haematoma - a little known entity. Braz J Otorhinolaryngol 2018; 85:698-704. [PMID: 30060926 PMCID: PMC9443051 DOI: 10.1016/j.bjorl.2018.05.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 05/22/2018] [Accepted: 05/29/2018] [Indexed: 11/29/2022] Open
Abstract
Introduction Sinonasal organising haematoma is a recently described, rare, benign inflammatory condition, which closely resembles malignancy in its clinical presentation. Objective To describe the clinical features of organising haematoma and to review the evolution of surgical options successfully used. Methods A retrospective review of charts of all patients with a histopathological diagnosis of sinonasal organising haematoma was performed. Results Six (60%) of the 10 patients were male with a mean age of 47.4 years. All patients had unilateral disease with recurrent epistaxis as the presenting symptom. Maxillary sinus was the most commonly involved sinus. There was no history of trauma in any of the patients. Hypertension (80%) was the most commonly associated comorbidity. Contrast-enhanced CT scan of the paranasal sinuses showed heterogeneous sinus opacification with/without bone erosion. Histopathological examination was diagnostic. Complete endoscopic excision was done in all patients resulting in resolution of the disease. Conclusion Awareness of this relatively new clinical entity and its evaluation and treatment is important for otolaryngologists, maxillofacial surgeons and pathologists alike. Despite the clinical picture of malignancy, histopathological features of benign disease can safely dispel such a diagnosis.
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Affiliation(s)
- Lalee Varghese
- Christian Medical College, Department of Otorhinolaryngology, Vellore, India.
| | | | - Raghav Mehan
- Christian Medical College, Department of Otorhinolaryngology, Vellore, India
| | - Regi Kurien
- Christian Medical College, Department of Otorhinolaryngology, Vellore, India
| | - Meera Thomas
- Christian Medical College, Department of Pathology, Vellore, India
| | - V Rupa
- Christian Medical College, Department of Otorhinolaryngology, Vellore, India
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A Case of Organizing Hematoma in a Maxillary Sinus After Reconstruction of a Blow-Out Fracture. J Craniofac Surg 2018; 28:1040-1041. [PMID: 28582957 DOI: 10.1097/scs.0000000000003788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
A 36-year-old man presented because of nasal obstruction, rhinorrhea, and postnasal drip. The patient had undergone reconstruction of a blow-out fracture of the orbital floor 12 years before and had sinusitis that likely had resulted from implant migration into the maxillary sinus. The inflammation was successfully resolved, and the implant was removed through a minimally invasive endoscopic sinus surgery technique. On pathologic examination, an organizing hematoma was identified as the cause of the lesion. Pre- and postoperational paranasal sinus computed tomography images were taken to compare the anatomy of the sinus before and following surgery.
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Pang W, Hu L, Wang H, Sha Y, Ma N, Wang S, Liu Q, Sun X, Wang D. Organized Hematoma: An Analysis of 84 Cases with Emphasis on Difficult Prediction and Favorable Management. Otolaryngol Head Neck Surg 2016; 154:626-33. [PMID: 26861229 DOI: 10.1177/0194599815625956] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 12/16/2015] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To characterize features of organized hematoma (OH) that may cause considerable diagnostic difficulties. STUDY DESIGN Case series with chart review. SETTING Tertiary medical center. SUBJECTS AND METHODS Eighty-four patients with pathologically confirmed OH over a 10-year period were retrospectively reviewed for clinical features, imaging findings, pathologic characteristics, and treatment modalities. RESULTS This study included 39 males and 45 females who presented with frequent epistaxis and nasal obstruction. There were 62 (74%) patients >40 years old (mean, 50; range, 9-81). OH mainly originated in the maxillary sinus (n = 82) or nasal cavity (n = 2) unilaterally, and most were expansile masses (n = 73) that extended into nasal cavity (n = 71) or choanae (n = 17). Several lesions were locally aggressive and simulated a malignant process that involved the ethmoid sinus (n = 22), orbit (n = 11), pterygopalatine fossa (n = 16), infratemporal fossa (n = 9), cheek (n = 3), and hard palate (n = 3). Internal architecture on computed tomography (CT) scans showed OH with expansile remodeling of the maxillary wall (82.1%) and smooth bony destruction (70.2%), whereas T2-weighted magnetic resonance (MR) images showed inhomogeneity with a notable hypointense peripheral rim in all lesions. CT and MR contrast-enhanced images revealed patchy heterogeneous enhancement that could be interpreted according to histopathologic findings of hemorrhage and neovascularization. OH was successfully removed with endoscopic surgery, although 5 cases recurred. CONCLUSIONS OH can be successfully treated by endoscopic surgery. CT and MR examination provide characteristic findings for prediction and careful surgical planning.
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Affiliation(s)
- Wenhui Pang
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China
| | - Li Hu
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China
| | - Huan Wang
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China
| | - Yan Sha
- Department of Radiology, Affiliated Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China
| | - Na Ma
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China
| | - Shuyi Wang
- Department of Pathology, Affiliated Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China
| | - Quan Liu
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China
| | - Xicai Sun
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China
| | - Dehui Wang
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China
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Park YK, Kim KS. Organizing Hematoma of the Maxillary Sinus Mimicking Malignancy Diagnosed by Fluorodeoxyglucose Positron-Emission Tomography (FDG PET/CT): A Case Report. IRANIAN JOURNAL OF RADIOLOGY 2015; 12:e18924. [PMID: 26587203 PMCID: PMC4644966 DOI: 10.5812/iranjradiol.18924] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 06/16/2014] [Accepted: 08/02/2014] [Indexed: 11/26/2022]
Abstract
Organizing hematoma of the paranasal sinuses is a diagnostic dilemma clinically and radiographically, mimicking benign or malignant neoplastic processes. Although the diagnostic rate of this disease has increased as characteristic imaging findings are somewhat elucidated, endoscopic examination, preoperative biopsy, and computed tomography (CT) imaging do not give helpful information in differentiating these lesions from malignant neoplastic processes. A 55-year-old man presented with a 4-month history of recurrent nasal bleeding. He also complained of a left-sided nasal obstruction. CT findings were highly suggestive of a malignant tumor of the maxillary sinus. However, based on fluorodeoxyglucose F18 positron-emission tomography (PET/CT) and magnetic resonance imaging (MRI), the provisional diagnosis of benign tumor rather than malignancy was made. Complete resection of the mass was achieved by simple transnasal endoscopic surgery using the Caldwell-Luc approach. Organizing hematoma of the maxillary sinus was diagnosed by histopathologic evaluation. The clinical, radiological, and histopathologic findings of the patient are presented. In this report, we have presented 18FDG-PET findings of organized hematoma of the maxillary sinus (OHMS) that showed an increased FDG uptake in the peripheral rim of the mass with central photopenia. To our knowledge, this is the first case report in the literature reporting FDG-PET/CT findings of OHMS. Careful interpretation of metabolic (FDG-PET/CT) and anatomic (CT and MRI) images should be performed to accurately characterize the expansile lesion of the maxillary sinus in order to increase specificity and reduce equivocal findings significantly.
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Affiliation(s)
- Yong Kyun Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Chung-Ang University Hospital, College of Medicine, Chung-Ang University, Seoul, Korea
- Corresponding authors: Kyung Soo Kim, Department of Otorhinolaryngology-Head and Neck Surgery,Chung-Ang University Hospital, College of Medicine, Chung-Ang University, P. O. Box: 156-755, Seoul, Korea. Tel: +82-262991765, Fax: +82-28251765, E-mail:
| | - Kyung Soo Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Chung-Ang University Hospital, College of Medicine, Chung-Ang University, Seoul, Korea
- Corresponding authors: Kyung Soo Kim, Department of Otorhinolaryngology-Head and Neck Surgery,Chung-Ang University Hospital, College of Medicine, Chung-Ang University, P. O. Box: 156-755, Seoul, Korea. Tel: +82-262991765, Fax: +82-28251765, E-mail:
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Hur J, Kim JK, Byun JS, Lee WJ. Imaging characteristics of sinonasal organized hematoma. Acta Radiol 2015; 56:955-9. [PMID: 25024439 DOI: 10.1177/0284185114542364] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 06/13/2014] [Indexed: 11/17/2022]
Abstract
BACKGROUND Sinonasal organized hematoma is a rare benign disease that may be mistaken for malignancy. PURPOSE To define the imaging characteristics of sinonasal organized hematoma. MATERIAL AND METHODS We retrospectively reviewed computed tomography (CT) images of eight patients (4 male patients, 4 female patients; mean age, 40 years; range, 9-83 years) with pathologically proven sinonasal organized hematomas; magnetic resonance imaging (MRI) was performed in one patient among them. The following lesions characteristics were analyzed: size, shape, location, expansile nature, density, signal intensity, internal structure, enhancement pattern, and surrounding bony wall change. RESULTS The lesion sizes were in the range of 2-5.2 cm (mean, 3.55 cm), and the shapes were lobular, lumpy, or nodular. They were located in the nasal cavity (n = 1), maxillary sinuses (n = 2), or both nasal cavities and maxillary sinuses (n = 5). Expansile lesions with locally aggressive margins were observed in two cases. All lesions were hyperdense on precontrast CT scans; the smaller lesions showed even hyperdensity, whereas the larger lesions showed uneven density. The signal intensity was mixed on MRI, consisting of hemorrhage, fibrosis, and neovascularization. Papillary or frond-like enhancement was noted after contrast injection. All cases showed smooth erosion of the medial walls of the maxillary sinuses, and the epicenters were the secondary maxillary ostia. Two lesions showed erosion of the lateral walls of the maxillary sinuses and were expansile in nature. Non-hemorrhagic polyps accompanied the organized hematomas in three cases. CONCLUSION Although sinonasal organized hematoma can be mistaken for a malignant tumor, the following characteristic imaging findings facilitate the diagnosis of an organized hematoma: erosion of the bony sinus walls, markedly heterogeneous signal intensity, and papillary or frond-like enhancement.
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Affiliation(s)
- Joonho Hur
- Department of Radiology, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Jae Kyun Kim
- Department of Radiology, Chung-Ang University College of Medicine, Seoul, Republic of Korea
- Department of Radiology, Kangwon National University College of Medicine, Chuncheon, Republic of Korea
| | - Jun Soo Byun
- Department of Radiology, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Woong Jae Lee
- Department of Radiology, Chung-Ang University College of Medicine, Seoul, Republic of Korea
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15
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Park SY, Kim KS. Giant Organized Hematoma Originating From the Inferior Turbinate. IRANIAN JOURNAL OF RADIOLOGY 2015; 12:e12366. [PMID: 26557266 PMCID: PMC4632134 DOI: 10.5812/iranjradiol.12366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 06/24/2013] [Accepted: 11/04/2013] [Indexed: 11/16/2022]
Abstract
We reported CT of a case of giant organized hematoma originating from the inferior turbinate without any paranasal sinuses involvement, with an emphasis on different patterns of enhancement of the tumor on enhanced CT scans. This case was exceptional because of unusual location and difficulties in diagnosis. Moreover, organized hematoma of nasal cavity should be considered in the differential diagnosis of a unilateral, huge and easy bleeding lesion in the nasal cavity. A high clinical suspicion based on endoscopic and radiologic findings plays an important role to make an accurate diagnosis.
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Affiliation(s)
- Sung Yoon Park
- Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Chung-Ang University, Seoul, South Korea
| | - Kyung Soo Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Chung-Ang University, Seoul, South Korea
- Corresponding author: Kyung Soo Kim, Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Chung-Ang University, P. O. Box: 156-755, Seoul, South Korea. Tel: +82-262991765, Fax: +82-28251765, E-mail:
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16
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Ding C, Wang Q, Guo Q, Wang Z, Lu X, Zhang J. Sinonasal Angiomatous Polyp: Evaluation With 2-Phase Helical Computed Tomography. Medicine (Baltimore) 2015. [PMID: 26200632 PMCID: PMC4602999 DOI: 10.1097/md.0000000000001196] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Sinonasal angiomatous polyp (SAP) is a rare benign nontumorous lesion and previously considered lack of characteristic computed tomography (CT) findings. This study aimed to evaluate 2-phase helical CT for characterization of SAP. Twelve patients with pathologically confirmed SAP underwent 2-phase helical CT preoperatively. After injection of 80 mL contrast material at a rate of 3 mL/s, early and delayed phases were obtained with delays of 30 and 120 s, respectively. The degree and pattern of enhancement were visually analyzed. The attenuation changes were also analyzed quantitatively by measuring CT values and compared with those of the internal maxillary artery (IMA). All 12 cases showed vessel-like marked heterogeneous enhancement at both early and delayed phases. An irregular linear, nodular, and patchy enhancement pattern was found at the early phase, and enlarged and fused together, that is, progressive enhancement pattern was found at the delayed phase. There was no significant difference between the CT values of SAP and those of the IMA at the plain, arterial phase, and delayed phase (53 ± 6 Hounsfield units [HU] vs 56 ± 7 HU, 187 ± 56 HU vs 209 ± 71 HU, and 143 ± 22 HU vs 139 ± 19 HU, respectively, P = 0.361, 0.429, and 0.613, respectively). Vessel-like marked heterogeneous enhancement was a characteristic CT feature of SAP, and progressive enhancement on 2-phase helical CT could further convince the diagnosis.
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Affiliation(s)
- Changwei Ding
- From the Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, P.R. China (CD, QW, QG, JZ); Department of Nasology, Shengjing Hospital of China Medical University, Shenyang, P.R. China (ZW); and CT Clinical Science, Philips Healthcare, Shenyang, China (XL)
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17
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Three cases of organized hematoma of the maxillary sinus: clinical features and immunohistological studies for vascular endothelial growth factor and vascular endothelial growth factor receptor 2 expressions. Case Rep Otolaryngol 2015; 2015:846832. [PMID: 25699195 PMCID: PMC4325202 DOI: 10.1155/2015/846832] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 12/28/2014] [Accepted: 01/01/2015] [Indexed: 11/21/2022] Open
Abstract
Objectives. Organized hematoma (OH) is a rare, nonneoplastic, hemorrhagic lesion causing mucosal swelling and bone thinning, mainly in the maxillary sinus. We aimed to clarify the clinical presentation and treatment of OH. Methods. Three cases of maxillary sinus OH and a literature review are presented. Results. Three men aged 16–40 years complained of nasal obstruction, frequent epistaxis, and/or headache. Clinical and radiological examinations revealed a maxillary sinus OH. They were cured in a piecemeal fashion via endoscopic middle meatal antrostomy. Furthermore, vascular endothelial growth factor and its receptor were expressed in the lesion. Conclusions. The pathogenesis of OH is unclear and it presents various histological and imaging findings; however, it is not difficult to rule out malignant tumors. Minimally invasive surgery such as endoscopic sinus surgery can cure it completely. Thus, it is important to determine the diagnosis using CT and MRI and to quickly provide surgical treatment.
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18
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Choi SJ, Seo ST, Rha KS, Kim YM. Sinonasal organized hematoma: Clinical features of seventeen cases and a systematic review. Laryngoscope 2015; 125:2027-33. [PMID: 25682739 DOI: 10.1002/lary.25200] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 12/20/2014] [Accepted: 01/15/2015] [Indexed: 11/10/2022]
Abstract
OBJECTIVES/HYPOTHESIS Organized hematoma (OH) is a rare non-neoplastic disease. We studied the clinical characteristics of 17 patients with sinonasal OH and those of 75 cases in the English literature. STUDY DESIGN Retrospective review of medical records and systematic review of the literature on OH. METHODS Comprehensive review of the English-language literature on OH was performed. We screened all eligible cases based on initial features, and 75 eligible cases found in 15 publications were analyzed. We also retrospectively analyzed and compared medical records of 17 patients diagnosed with pathologically proven sinonasal OH. Data such as demographics, clinical characteristics, pathologic features, radiologic findings, treatment modalities, and follow-up results were compared to the 75 previously mentioned cases. RESULTS Fifteen cases involved the maxillary sinus, one case involved the frontal sinus, and one case involved the sphenoid sinus. There were six patients over 60 years old, and all were taking an antiplatelet agent. The paranasal sinus computed tomography (CT) of seven patients showed bony destruction of the involved sinus. A review of the available literature revealed mostly similar results with our cases, except for the proportion of patients taking aspirin (5.3%) and sex distribution (male:female = 49:25). CONCLUSIONS We reported 17 cases of OH, including a case of frontal sinus and a case of sphenoid sinus lesion. A large proportion of OH patients had bony destruction of the affected sinus on CT. In these patients, a careful diagnosis should be made to distinguish them from a malignant tumor or other expansile diseases. LEVEL OF EVIDENCE 4.
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Affiliation(s)
- Soo Jung Choi
- Department of Otorhinolaryngology-Head and Neck Surgery, Research Institute for Medical Sciences, Chungnam National University School of Medicine, Daejeon, South Korea
| | - Sung Tae Seo
- Department of Otorhinolaryngology-Head and Neck Surgery, Research Institute for Medical Sciences, Chungnam National University School of Medicine, Daejeon, South Korea
| | - Ki-Sang Rha
- Department of Otorhinolaryngology-Head and Neck Surgery, Research Institute for Medical Sciences, Chungnam National University School of Medicine, Daejeon, South Korea
| | - Yong Min Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Research Institute for Medical Sciences, Chungnam National University School of Medicine, Daejeon, South Korea
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19
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CT and MR imaging findings of sinonasal angiomatous polyps. Eur J Radiol 2013; 83:545-51. [PMID: 24380636 DOI: 10.1016/j.ejrad.2013.12.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 11/28/2013] [Accepted: 12/05/2013] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To characterize the CT and MR imaging findings of patients with sinonasal angiomatous polyps (SAPs) and evaluate their respective clinical value in the diagnosis of SAP. METHODS CT and MR imaging findings of 15 patients with pathologically proven SAP were examined. Assessed image features included location, size, margin, attenuation, and change of the bony walls of the sinonasal cavity on CT, and signal intensity and enhancement pattern on MR. RESULTS On CT, the SAP was mostly isoattenuated with patches of slight hyperattenuation. Most lesions caused changes in the adjacent bone, including expansile remodeling (n=8), defect or destruction (n=7), and hyperostosis (n=6). All lesions examined by MR showed heterogeneous isointense signal intensity on T1-weighted images and mixed obvious hyperintense and hypointense signal intensity with linear hypointense septum internally (n=10), and hypointense peripheral rim on T2-weighted images (n=10). Postcontrast MR images demonstrated areas of heterogeneous and marked enhancement with an unenhanced hypointense rim and septa (n=7). CONCLUSIONS CT and MR imaging have respective advantages in the diagnosis of SAP. Combined application of CT and MR examinations is necessary for patients with suspected SAP.
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20
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Organised haematoma of the maxillary sinus: pathophysiological differences suggesting a new aetiological hypothesis. The Journal of Laryngology & Otology 2013; 127:519-24. [PMID: 23552378 DOI: 10.1017/s0022215113000625] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND AND OBJECTIVES Organised haematomas of the maxillary sinus are rare, non-neoplastic, haemorrhagic lesions which can extend into the nasal cavity and/or the other paranasal sinuses. This study aimed to investigate the pathology of maxillary sinus organised haematoma, and also proposes a new aetiological hypothesis based on the observed pathology. METHODS Biopsies, computed tomography, magnetic resonance imaging and post-surgical histopathological examination of resected specimens were carried out. CONCLUSION Distinct pathological differences were observed between the basal and peripheral portions of organised haematomas. We propose that an organised haematoma originates from the exudation of blood components between vascular endothelial cells. As a result, the basal portion consists of aggregated, dilated vessels around the natural ostium of the maxillary sinus. In addition, pseudovessels, without endothelial cells, arise from endocapillary vessels within the haematoma. Exudation of additional blood components from the pseudovessels advances the growth of the organised haematoma.
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21
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Clinical and pathological characteristics of organized hematoma. Int J Otolaryngol 2013; 2013:539642. [PMID: 23533421 PMCID: PMC3606777 DOI: 10.1155/2013/539642] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Accepted: 02/13/2013] [Indexed: 11/18/2022] Open
Abstract
Objective. To study the clinical and pathological characteristics of patients with organized hematoma with malignant features in maxillary sinuses. Subjects and Methods. This was a retrospective study of five patients who were treated surgically for organized hematoma. The preoperative CT and MRI findings were studied clinically. The expressions of CD31, CD34, and periostin in surgical samples were investigated by immunohistochemistry. Results. The clinical features of organized hematoma, such as a mass expanding from the maxillary sinus with bone destruction, resembled those of maxillary carcinoma. However, CT and MRI provided sufficient and useful information to differentiate this condition from malignancy. Surgical resection was the first-line treatment because of the presence of a firm capsule. Characteristic histopathological findings were a mixture of dilated vessels, hemorrhage, fibrin exudation, fibrosis, hyalinization, and neovascularization. The expressions of periostin, CD31, and CD34 were observed in organized hematoma of the maxillary sinus. Conclusion. The expressions of periostin, CD31, and CD34 were observed in organized hematoma of the maxillary sinus. Organized hematoma is characterized pathologically by a mixture of bleeding, dilated vessels, hemorrhage, fibrin exudation, fibrosis, hyalinization, and neovascularization. CT and MRI show heterogeneous findings reflecting a mixture of these pathological entities.
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22
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Wu AW, Ting JY, Borgie RC, Busaba NY, Sadow PM, Juliano AF, Gray ST, Holbrook EH. Diagnostic characteristics of sinonasal organizing hematomas: avoiding misdiagnosis. Int Forum Allergy Rhinol 2013; 3:598-602. [PMID: 23307434 DOI: 10.1002/alr.21147] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2012] [Revised: 11/02/2012] [Accepted: 11/29/2012] [Indexed: 11/10/2022]
Abstract
BACKGROUND Organizing hematomas of the paranasal sinuses are diagnostic dilemmas clinically and radiographically, mimicking benign or malignant neoplastic processes and causing patients and clinicians undue worry regarding these diagnoses. Diagnostic criteria for correctly identifying these lesions are not well known. METHODS A retrospective case series of 7 patients with sinonasal organizing hematoma was studied. Radiographic imaging, clinical characteristics, and pathology were reviewed for new insights. RESULTS Three patients presented with a primary complaint of epistaxis, 4 had masses visible on nasal endoscopy, and 2 had vascular malformations or small hemangiomas adjacent to the mass found on final pathology. Biopsy of these masses were consistently nondiagnostic prior to complete resection. The most diagnostic findings were "shells" of T2 hypointensity on magnetic resonance imaging (MRI) surrounding the lobules of each of the masses. These correspond to rims of fibrosis at the periphery of the lobules on pathology. Areas of fresh hemorrhage are located at the center of these lobules. CONCLUSION Sinonasal organizing hematomas are rare lesions of the paranasal sinuses whose clinical characteristics lead to misdiagnoses of benign or malignant neoplasms. Endoscopy, preoperative biopsy, and computed tomography (CT) imaging do not lend helpful information in differentiating these lesions from more worrisome neoplastic processes. However, MRI can lead to positive diagnosis by recognizing the distinct outer rims of T2 hypointensity typically seen in these lesions.
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Affiliation(s)
- Arthur W Wu
- Department of Otology and Laryngology, Harvard Medical School, Boston, MA, USA
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23
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Organised haematoma of the maxillary sinus in patients with chronic renal failure. The Journal of Laryngology & Otology 2012; 126:946-8. [PMID: 22784970 DOI: 10.1017/s0022215112001491] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
OBJECTIVE Organised haematoma of the maxillary sinus may be present in chronic renal failure patients, because these patients are at high risk of haemorrhage. CASE REPORTS We present two cases of organised haematoma of the maxillary sinus in patients with chronic renal failure. CONCLUSION A diagnosis of organised haematoma of the maxillary sinus should be considered when a patient with a history of chronic renal failure develops unilateral, recurrent epistaxis and nasal obstruction.
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Wang YZ, Yang BT, Wang ZC, Song L, Xian JF. MR evaluation of sinonasal angiomatous polyp. AJNR Am J Neuroradiol 2011; 33:767-72. [PMID: 22194389 DOI: 10.3174/ajnr.a2856] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE SAP is a rare lesion of the sinonasal cavity, which may be misdiagnosed as a benign or malignant neoplasm. The purpose of our study was to comprehensively evaluate the MR imaging features of SAP. MATERIALS AND METHODS Forty patients with SAP confirmed pathologically were retrospectively reviewed. Of the 40 patients undergoing MR imaging, 39 had postcontrast T1WI; 30, DCE MR imaging; and 17, DWI. The image features assessed included the location, shape, margin, size, signal intensity, and enhancement pattern on DCE MR imaging and ADC maps. RESULTS All 40 SAPs originated from the maxillary sinus, but the lesions frequently extended into the ipsilateral nasal cavity (38/40), toward the choana (19/40), and into the nasopharynx (8/40). The lesions demonstrated hypointensity on T1WI and heterogenous hyperintensity on T2WI. All 40 lesions showed a peripheral hypointense rim on T2WI. Postcontrast MR imaging revealed marked heterogeneous nodular and patchy enhancement. Progressive enhancement was found on DCE MR imaging in 30 cases. The TIC showed a steady enhancement pattern in 3 cases, a rapidly enhancing and slow washout pattern in 6 cases, and a rapidly enhancing and rapid washout pattern in 21 cases. On DWI, the mean ADC value was (1.40 ± 0.20) × 10(-3) mm(2)/s. CONCLUSIONS Distinctive features of SAP on conventional MR imaging include internal heterogeneous hyperintensity and a peripheral hypointense rim on T2WI, as well as strong nodular and patchy enhancement on postcontrast MR images. The progressive enhancement on DCE MR imaging can also suggest the diagnosis.
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Affiliation(s)
- Y Z Wang
- Department of Radiology, Beijing Tongren Hospital, Capital Medical University, Beijing. China.
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25
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Ryu JK, Jin W, Kim GY. Sonographic appearances of small organizing hematomas and thrombi mimicking superficial soft tissue tumors. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2011; 30:1431-1436. [PMID: 21968496 DOI: 10.7863/jum.2011.30.10.1431] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We retrospectively reviewed 2 cases of organizing hematomas and 2 cases of intravascular organizing thrombi and investigated correlations between sonographic and pathologic findings. In all 4 cases, a well-defined hypoechoic heterogeneous mass with surrounding increased echogenicity was evident in the subcutaneous fat layer. Organizing hematomas and thrombi have sonographic features similar to those of benign-looking soft tissue tumors. These lesions should therefore be considered in the differential diagnosis of superficial soft tissue masses.
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Affiliation(s)
- Jung Kyu Ryu
- Department of Radiology, Kyung Hee University Hospital at Gandong, 149 Sangil-dong, Gangdong-gu, Seoul 134-727, Korea
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26
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Pixel-based time–intensity curve analysis and apparent diffusion coefficient mapping of sinonasal organized hematomas. Oral Radiol 2010. [DOI: 10.1007/s11282-010-0042-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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27
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Organized hematoma in the paranasal sinus and nasal cavity--imaging diagnosis and pathological findings. Auris Nasus Larynx 2009; 37:173-7. [PMID: 19699045 DOI: 10.1016/j.anl.2009.06.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2009] [Revised: 05/19/2009] [Accepted: 06/21/2009] [Indexed: 11/22/2022]
Abstract
OBJECTIVES The "organized hematoma" is a non-neoplastic, hemorrhagic lesion, which can develop in the paranasal sinus and nasal cavity. This is the first report on the relationship between the imaging and pathological findings. METHODS We diagnosed organized hematoma, based on three criteria: no existence of neoplastic cells; consistency of hematoma and fibrosis; and development from the paranasal sinus and nasal cavity. We retrospectively investigated six cases from the patients' medical records. RESULTS On the imaging findings, the central part of the lesion was enhanced more strongly than the lesion periphery. All of the pathological findings were hematoma at the center, and fibrosis at the periphery. In three of the cases, dilated vessels were found but not in the other three. CONCLUSION We found that the biphasic appearance of the imaging findings correlated with that of the pathological findings. There are two pathological types--the dilated vessel type and the non-dilated vessel type.
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28
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Organised haematoma of the sphenoid sinus mimicking a pituitary tumour. The Journal of Laryngology & Otology 2009; 124:83-5. [PMID: 19545462 DOI: 10.1017/s002221510900574x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE We report an extremely rare case of an organised haematoma arising in the sphenoid sinus. CASE REPORT An 85-year-old woman presented with an expansile soft tissue mass in the left sphenoid sinus, with bony destruction of the sella turcica, which mimicked the extrasellar extension of a pituitary tumour. The tumour was excised using an endoscopic, transsphenoidal approach. Histopathological examination revealed an organised haematoma. CONCLUSION To our knowledge, this is the first report of an organised haematoma arising in the sphenoid sinus. This case indicates that organised haematoma should be included in the differential diagnosis of extensive sphenoid lesions; it also emphasises the importance of correct pre-operative diagnosis for therapeutic planning, as complete surgical resection by an endoscopic approach is curative.
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Kim EY, Kim HJ, Chung SK, Dhong HJ, Kim HY, Yim YJ, Kim ST, Jeon P, Ko YH. Sinonasal organized hematoma: CT and MR imaging findings. AJNR Am J Neuroradiol 2008; 29:1204-8. [PMID: 18403558 DOI: 10.3174/ajnr.a1042] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
BACKGROUND AND PURPOSE Sinonasal organized hematoma (OH) is an uncommon, nonneoplastic benign condition that can be locally aggressive. The purpose of this work was to characterize the CT and MR imaging findings of sinonasal OH. MATERIALS AND METHODS CT (n = 11) and MR (n = 10) images of 12 patients (9 men and 3 women; mean age, 41 years; range, 12-76 years) with pathologically proved sinonasal OH were retrospectively reviewed. Particular attention was put on the location, shape, size, extent, internal architecture, and enhancement pattern of the lesion and associated sinus wall change. RESULTS The lesions were seen as an expansile (n = 9) or nonexpansile (n = 3) mass, ranging in size from 2.2 to 6.0 cm (mean, 4.2 cm), primarily involving the maxillary sinus (n = 11) or nasal cavity (n = 1) unilaterally. The ipsilateral nasal cavity was also involved in 9 of 11 maxillary sinus lesions. Smooth sinus wall erosion other than the medial maxillary sinus wall was noted in 8 lesions. The internal architecture was best displayed on T2-weighted MR images on which all of the lesions were seen as a mixture of marked heterogeneous hypointensity and isointensity, surrounded by a hypointense peripheral rim, reflecting histologic heterogeneity of the lesion composed of hemorrhage, fibrosis, and neovascularization. Marked irregular nodular, papillary, or frondlike enhancement at the areas of neovascularization was also a typical finding seen in all of the lesions. CONCLUSION An expansile soft tissue mass, smooth sinus wall erosion, marked heterogeneous signal intensity with a hypointense peripheral rim on T2-weighted MR images, and marked irregular nodular, papillary, or frondlike enhancement are characteristic CT and MR imaging findings of sinonasal OH.
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Affiliation(s)
- E Y Kim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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