Unique Radiological Appearance of a Microcystic Meningioma

1999 ◽  
Vol 141 (10) ◽  
pp. 1119-1121 ◽  
Author(s):  
K. Shimoji ◽  
Y. Yasuma ◽  
K. Mori ◽  
M. Eguchi ◽  
M. Maeda
Keyword(s):  
Radiological Appearance ◽  
Microcystic Meningioma

A Comparative Study of Endoscopic Finding and Radiological Appearance in Paranasal Sinus Disease

2018 ◽  
Vol 2 (S1) ◽  
pp. e000128
Author(s):  
Anjani Agarwal ◽  
Alpesh Fefar ◽  
Manish Mehta
Keyword(s):  
Ct Scan ◽  
Paranasal Sinus ◽  
Uncinate Process ◽  
Nasal Endoscopy ◽  
High Association ◽  
Sinus Disease ◽  
Radiological Appearance ◽  
Highly Sensitive ◽  
Operative Findings ◽  
Paranasal Sinus Disease

Aims and Objectives: The study is carried out with an objective to compare the diagnostic nasal endoscopic findings and radiological appearance in patients with paranasal sinus disease. Methods: 50 cases of chronic sinusitis not responding to routine medical line of treatment were selected and operated after being thoroughly investigated by means of nasal endoscopy and CT scan.  Results: Out of 50 cases, 35 underwent bilateral surgery and 15 underwent unilateral surgery, so a total of 85 procedures were carried out. Findings of both the CT scan as well as diagnostic nasal endoscopy were compared to each other and ultimately correlated with operative findings.  Conclusion: In our study, a high association is found between both the modalities of investigation i.e CT scan and diagnostic nasal endoscopy with one scoring over the other in different parameters. Diagnostic nasal endoscopy is found to be highly sensitive investigatory modality for parameters like frontal recess, spheno-ethmoid recess and hiatus semilunaris, where as CT scan is found to be highly sensitive for parameters like maxillary sinus, uncinate process and posterior ethmoids. So, a case of sinus disease should be diagnosed as early as possible using both these modalities as together they complement each other. Early diagnosis and effective management cures the pathology and prevents disastrous complications.  

Meningeal melanocytoma

1998 ◽  
Vol 88 (1) ◽  
pp. 116-121 ◽  
Author(s):  
David B. Clarke ◽  
Richard Leblanc ◽  
Gilles Bertrand ◽  
Gilbert R. C. Quartey ◽  
G. Jackson Snipes
Keyword(s):  
Histological Examination ◽  
Posterior Fossa ◽  
Clinical Presentation ◽  
Residual Tumor ◽  
Posterior Fossa Decompression ◽  
Content Type ◽  
Meningeal Melanocytoma ◽  
Radiological Appearance ◽  
Histological Features ◽  
Fine Print

✓ Meningeal melanocytomas are rare tumors of the central nervous system that are found almost exclusively in the posterior fossa and spinal cord and whose natural history is poorly defined. In this report, the authors review the clinical presentation, radiological appearance, operative findings, and histological features in two cases of meningeal melanocytoma: one cranial and one spinal. Two women, aged 21 and 30 years, were admitted to the hospital 60 years apart: the first because of progressive paraplegia and the second because of slowly progressive hearing loss. The first patient had an extradural tumor that was treated by laminectomy, subtotal resection, and postoperative radiotherapy in 1936. Her symptoms recurred 16 years later and she underwent reoperation of the residual tumor, which was found to have an intradural component. The authors' patient, who presented 60 years later, underwent plain and enhanced computerized tomography and magnetic resonance imaging that demonstrated a large posterior fossa lesion indicative of either an acoustic neuroma or a meningioma. She underwent posterior fossa decompression but only partial excision of the tumor could be accomplished because vigorous bleeding limited the extent of the resection. Surgery was followed by radiotherapy. The residual tumor enlarged despite these measures and required repeated resection 6 months later. At the second operation the tumor was much less vascular, perhaps reflecting the effects of radiotherapy, and was removed almost entirely. The patient died 6 months later from an anticoagulant-related cerebellar hemorrhage. In both cases the lesions were jet black, and histological examination revealed melanin-containing hypercellular tumors with rare mitotic figures. Meningeal melanocytomas are being diagnosed with increased frequency in parallel with improvements in neuroimaging and clarification of histological features. Clinical presentation of patients with these tumors typically occurs in their fifth decade and women are affected twice as often as men. The posterior fossa lesions can mimic acoustic neuromas and meningiomas in location and radiological appearance; however, the internal auditory canal is normal. In the spine, meningeal melanocytomas present with the clinical features of myeloradiculopathy. Diagnosis is made intraoperatively from the gross, jet-black appearance of the tumor and from histological examination. Vascularity, size, and location may render complete resection unfeasible. Because of the tumor's propensity to recur, radiotherapy has been recommended but its role remains to be elucidated.

Diaphragmatic Mesothelial Cyst: Radiological Appearance and Follow-Up Results During Childhood

2021 ◽  
Vol 37 (4) ◽  
pp. 357-361
Author(s):  
Ismail Akdulum ◽  
Mehmet Öztürk ◽  
Sinan Karatoprak ◽  
Melih Akyüz ◽  
Ahmet Sığırcı ◽  
...  
Keyword(s):  
Radiological Appearance ◽  
Mesothelial Cyst

scholarly journals A Huge Cemento-Ossifying Fibroma of Paranasal Sinus: A Case Report

2012 ◽  
Vol 55 (3) ◽  
pp. 146-149
Author(s):  
Ibrahim Erdim ◽  
Zahide Mine Yazici ◽  
Rasim Yilmazer ◽  
Nurten Sever ◽  
Fatma Tulin Kayhan
Keyword(s):  
Case Report ◽  
Paranasal Sinus ◽  
Male Patient ◽  
Paranasal Sinuses ◽  
Surgical Excision ◽  
Ossifying Fibroma ◽  
Radiological Appearance ◽  
Close Observation ◽  
Slow Growing

Cemento-ossifying fibroma is a well-bordered, slow-growing, benign fibro-osseous disease. Although its localization is generally in the mandible, it can be seen in any area of the craniofacial region. Radiology and histopathology help to diagnose the condition. Treatment is based on close observation and/or surgical excision. In this case, we report the case of a 62-year-old male patient who had a large radiological appearance, cemento-ossifying fibroma in the paranasal sinuses.

scholarly journals Radiological Appearance of Hepatocellular Carcinoma Predicts the Response to Trans-arterial Chemoembolization in Patients Undergoing Liver Transplantation

2019 ◽  
Author(s):  
Wei Zhang ◽  
An-Hui Xu ◽  
Wei Wang ◽  
Yan-Hui Wu ◽  
Qian-Ling Sun ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Liver Transplantation ◽  
Tumor Necrosis ◽  
Tumor Response ◽  
Locoregional Therapy ◽  
Arterial Phase ◽  
Radiological Appearance ◽  
Explant Analysis ◽  
Complete Tumor ◽  
Arterial Chemoembolization

Abstract Background: The ultimate goal of locoregional therapy (LRT) to the liver is to induce total tumor necrosis. Trans-arterial chemoembolization (TACE) is the mainstay bridging therapy for patients with hepatocellular carcinoma (HCC) waiting for liver transplantation (LT). However, tumor response rate is variable. The purpose of this study was to correlate HCC radiological appearance with level of tumor necrosis during explant analysis from patients undergoing LT who received pre-LT TACE. Methods: From January 2000 to December 2018, a total of 66 patients with HCC who had been treated prior to LT by means of TACE were analyzed. Diagnosis of HCC was made based on AASLD guidelines and confirmed via histopathology explant analysis. Radiologic tumor response after TACE was based on modified Response Evaluation Criteria in Solid Tumors (mRECIST). Degree of tumor necrosis was determined by histopathology analysis of liver explants. HCC radiological appearances on CT before TACE were assessed and correlated with histological findings after LT. Results: Eighty nine TACE procedures (1.35±0.67; 1-4) were performed, of which 18 were repeated TACE (27.3%) procedures. In 56.1% of the patients, ≥90% (near-complete) tumor necrosis was achieved. Concordance between mRECIST criteria and pathology was observed in 63% of the patients, with an underestimation of tumor response in 18 (27%) patients and an overestimation in 6 (9.1%). Near-complete tumor necrosis upon pathological analysis was associated with tumor hyper-enhancement in the arterial phase (P=0.002), “typical tumor enhancement” (P=0.010) and smooth tumor margins (p=0.011). The multivariate analysis showed that well circumscribed HCCs with smooth margins and arterial hyper-enhancement independently correlated with post-TACE near-complete histological tumor necrosis. Conclusion s : The well circumscribed HCC lesions with arterial hyper-enhancement are more susceptible to TACE than lesions with arterial phase iso or hypo-enhancement and lesions with infiltrative appearance. Pre-TACE CT imaging may ease the selection of an optimal treatment strategy for bridging patients with HCC to liver transplantation.

scholarly journals Crush Cytology of Microcystic Meningioma with Extensive Sclerosis

2014 ◽  
Vol 48 (1) ◽  
pp. 77 ◽  
Author(s):  
Jae Yeon Seok ◽  
Na Rae Kim ◽  
Hyun Yee Cho ◽  
Dong Hae Chung ◽  
Gi-Taek Yee ◽  
...  
Keyword(s):  
Microcystic Meningioma

Radiological appearance of postirradiation sarcoma of the chest wall after mastectomy

2005 ◽  
Vol 29 (3) ◽  
pp. 185-188
Author(s):  
Alice P.Y. Tang ◽  
Winnie C.W. Chu ◽  
Wynnie W.M. Lam ◽  
Gary M.K. Tse
Keyword(s):  
Chest Wall ◽  
Radiological Appearance ◽  
Postirradiation Sarcoma

scholarly journals Medical and surgical devices in the emergency and trauma patient: what the radiologist should know, and how they can add value

2020 ◽  
pp. 20200530
Author(s):  
Marcela De La Hoz Polo ◽  
Amandeep Sandhu ◽  
Elika Kashef ◽  
Christopher Aylwin ◽  
Duncan Bew ◽  
...  
Keyword(s):  
Medical Devices ◽  
Life Support ◽  
Formal Training ◽  
Trauma Patients ◽  
Acute Setting ◽  
Endotracheal Tubes ◽  
Acute Trauma ◽  
Radiological Appearance ◽  
Surgical Devices ◽  
Limited Experience

A variety of different external and internal medical devices are used in the acute setting to maintain life support and manage severely injured and unstable trauma or emergency patients. These devices are inserted into the acutely ill patient with the specific purpose of improving outcome, but misplacement can cause additional morbidity and mortality. Consequently, meaningful interpretation of the position of devices can affect acute management. Some devices such as nasopharyngeal, nasogastric and endotracheal tubes and chest and surgical drains are well known to most clinicians, however, little formal training exists for radiologists in composing their report on the imaging of these devices. The novice radiologist often relies on tips and phrases handed down in an aural tradition or resorts to phrases such as: “position as shown”. Furthermore, radiologists with limited experience in trauma might not be familiar with the radiological appearance of other more specific devices. This review will focus on the most common medical devices used in acute trauma patients, indications, radiological appearance and their correct and suboptimal positioning.

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