scholarly journals Dramatic demise of a pregnant woman in third trimester after presenting with persistent headache: An iatrogenic

2021 ◽  
Vol 2 (5) ◽  
Author(s):  
Islam Tarek Elkhateb ◽  
◽  
Mennah Hisham Aldamsisi ◽  
Abdalla Mousa ◽  
◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Brain Stem ◽  
Magnetic Resonance Imaging Examination ◽  
Cerebral Vein ◽  
Resonance Imaging ◽  
Third Trimester ◽  
Mechanically Ventilated ◽  
Inhalational Anaesthesia ◽  
Persistent Headache

A 31-years-old patient, pregnant at 32 weeks of gestation presented to our triage unit with complaint of gradually progressive persistent headache that started 1 day earlier and was unresponsive to all analgesics. Her history was insignificant for any major medical or surgical events and the pregnancy course was smooth as well. Her lab results and obstetric ultrasound were reassuring. During magnetic resonance imaging examination, the patient suddenly deteriorated after giving her an inhalational anaesthesia for sedation. She became unconscious. She was intubated, mechanically ventilated, and put-on cardiovascular support. Brain imaging then revealed Brain Stem (BS) herniation and diffuse brain oedema. She was announced dead with intrauterine foetal death. A late diagnosis of cerebral venous thrombosis was established. This caused BS herniation through increased intracranial pressure, which was iatrogenically augmented by administering inhalation anaesthesia. Keywords: cerebral vein; thrombosi; thrombophilia; pregnancy; headache; magnetic resonance imaging; brain stem herniation.

scholarly journals Unilateral tinnitus as a single symptom of unusually large vestibular schwannoma

2014 ◽  
Vol 67 (suppl. 1) ◽  
pp. 46-48
Author(s):  
Zoran Komazec ◽  
Slobodanka Lemajic-Komazec ◽  
Rajko Jovic ◽  
Ljiljana Vlaski ◽  
Dragan Dankuc
Keyword(s):  
Magnetic Resonance Imaging ◽  
Hearing Loss ◽  
Magnetic Resonance ◽  
Sensorineural Hearing Loss ◽  
Brain Stem ◽  
Vestibular Schwannoma ◽  
Sensorineural Hearing ◽  
Magnetic Resonance Imaging Examination ◽  
Resonance Imaging ◽  
Persistent Symptoms

Introduction. Vestibular schwannomas are relatively rare tumors whose symptoms are based on its location and as the tumor grows, the symptoms usually advance. Case Report. An 18-year old patient was examined by an otolaryngologist due to buzzing in her right ear that had lasted for about 1 month. Her pure-tone audiometry findings showed slight asymmetry; a slight ascendant type sensorineural hearing loss was found in the right ear (25 dB HL at 125 Hz, 20 dB HL at 250 Hz, and 10 dB HL at other frequencies), while the threshold in the left ear was 15 dBHL at 125 Hz and 10 dB HL at other frequencies. Electronystagmography, otoacoustic emissions and auditory brain-stem responses suggested retrocochlear etiology of tinnitus. Magnetic resonance imaging examination revealed a large right cerebellopontine angle tumor, measuring 5 x 3 x 3 cm, which had shifted the brain stem laterally. Conclusion. Every case of unilateral tinnitus, asymmetric sensorineural hearing loss, or hypotonia of labyrinth not strictly accompanied by vertigo, needs to be further evaluated using a battery of audiologic tests whose findings may be normal. Audiologic tests should be repeated in cases of persistent symptoms and accompanied by cranial magnetic resonance imaging, which is today considered the gold standard for diagnosis of vestibular schwannoma.

scholarly journals Hepatic epithelioid hemangioendothelioma: a report from three university centers

2016 ◽  
Vol 49 (5) ◽  
pp. 288-294 ◽  
Author(s):  
Antonello Giardino ◽  
Frank H. Miller ◽  
Bobby Kalb ◽  
Miguel Ramalho ◽  
Diego R. Martin ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Epithelioid Hemangioendothelioma ◽  
Magnetic Resonance Images ◽  
Central Core ◽  
Magnetic Resonance Imaging Examination ◽  
High Signal ◽  
Resonance Imaging ◽  
Peripheral Ring ◽  
Venous Phase

Abstract Objective: To determine common imaging findings of hepatic epithelioid hemangioendothelioma on magnetic resonance images. Materials and Methods: A search was made of three institutional databases between January 2000 and August 2012. Seven patients (mean age, 47 years; range, 21-66 years; 6 women) with pathology-confirmed diagnosis of hepatic epithelioid hemangioendothelioma who had undergone magnetic resonance imaging were identified. None of the patients had received any treatment for hepatic epithelioid hemangioendothelioma at the time of the initial magnetic resonance imaging examination. Results: Hepatic epithelioid hemangioendothelioma tumors appeared as focal masses in 7/7 patients, greater than 5 in number, with a coalescing lesion in 1/5, and peripheral localization in 6/7. Capsular retraction was present in 4/7, and was associated with peripherally located lesions. Early ring enhancement was appreciated in the majority of lesions in 7/7 patients. Centripetal progressive enhancement was shown in 5/7 patients on venous phase that exhibited a distinctive thick inner border of low signal on venous phase images, and a central core of delayed enhancement. Small lesions did not show this. Conclusion: The combination of multifocal round-configuration lesions that are predominantly peripheral and exhibit early peripheral ring enhancement and late appearance of an inner thick border of low signal and central core of high signal may represent an important feature for hepatic epithelioid hemangioendothelioma.

Magnetic resonance imaging of a third trimester abdominal pregnancy

1990 ◽  
Vol 8 (5) ◽  
pp. 657-659 ◽  
Author(s):  
William D. Murphy ◽  
David H. Feiglin ◽  
Claudia C. Cisar ◽  
Ahmed M. Al-Malt ◽  
Errol M. Bellon
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Abdominal Pregnancy ◽  
Resonance Imaging ◽  
Third Trimester

Acoustic Neuroma in Patients with Completely Resolved Sudden Hearing Loss

2003 ◽  
Vol 112 (5) ◽  
pp. 395-397 ◽  
Author(s):  
Ben I. Nageris ◽  
Aaron Popovtzer
Keyword(s):  
Magnetic Resonance Imaging ◽  
Hearing Loss ◽  
Magnetic Resonance ◽  
Brain Stem ◽  
Complete Recovery ◽  
Sudden Hearing Loss ◽  
Resonance Imaging ◽  
Auditory Brain Stem ◽  
Acoustic Tumor ◽  
Brain Stem Evoked Response

Approximately 30% of patients with sudden hearing loss show complete recovery. Researchers have long questioned whether extensive evaluation is necessary in these cases. Recently, however, with the increasing widespread application of magnetic resonance imaging, a higher rate than expected of acoustic neuromas has been detected in patients with sudden hearing loss. Two studies have suggested that affected patients may even partially regain hearing. The aim of the present clinical study was to determine whether acoustic neuroma–induced hearing loss may be associated with full recovery. The files of 67 patients evaluated for sudden hearing loss at Rabin Medical Center from 1989 to 2000 were reviewed. All patients underwent pure tone audiometry, acoustic reflex tests, and auditory brain stem evoked response tests. Hearing evaluation was followed by magnetic resonance imaging scan and, 1 month later, a second hearing test. Findings were compared between patients with and without evidence of tumor on imaging, and between patients with tumor with and without full recovery. Twenty-four patients (36%) had a diagnosis of acoustic tumor, of whom 4 (16.7%) recovered hearing after 1 month. All 4 tumors were intracanalicular. Two of these patients had low-tone hearing loss, and 2 had flat curves; 3 had a pathological auditory brain stem evoked response. Of the 43 patients without tumors, 26 (60%) showed complete resolution of the hearing loss. We conclude that complete recovery of hearing loss does not exclude acoustic tumor, and these patients therefore require full evaluation. The reason for the recovery remains unclear.

scholarly journals Postpartum Regression of a Presumed Cavernous Meningioma

2016 ◽  
Vol 2016 ◽  
pp. 1-3
Author(s):  
See Yung Phang ◽  
Peter Whitfield
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Caucasian Woman ◽  
Complete Regression ◽  
Resonance Imaging ◽  
Third Trimester ◽  
Mri Scan ◽  
The Third ◽  
Cavernous Sinus Meningioma ◽  
Magnetic Resonance Imaging Mri

Meningiomas are known to be more common in females than males. They are also known in rare cases to grow in size during pregnancy, which can complicate its management. We describe a 31-year-old Caucasian woman who presented with blurring of her vision and diplopia during the third trimester of her pregnancy. Magnetic resonance imaging (MRI) showed a small left cavernous sinus meningioma. The patient was treated conservatively until her uncomplicated delivery. A postpartum MRI scan showed complete regression of the suspected meningioma. Currently the patient is contemplating a further pregnancy.

Symptomatic Chiari Malformation in Adults: A New Classification Based on Magnetic Resonance Imaging with Clinical and Prognostic Significance

Neurosurgery ◽  
1991 ◽  
Vol 28 (5) ◽  
pp. 639-645 ◽  
Author(s):  
Prem K. Pillay ◽  
Issam A. Awad ◽  
John R. Little ◽  
Joseph F. Hahn
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Brain Stem ◽  
Chiari Malformation ◽  
Prognostic Significance ◽  
Type A ◽  
Foramen Magnum ◽  
Magnetic Resonance Imaging Scan ◽  
Type B ◽  
Resonance Imaging

Abstract Thirty-five consecutive adults with Chiari malformation and progressive symptoms underwent surgical treatment at a single institution over a 3-year period. All patients underwent magnetic resonance imaging scan before and after surgery. Images of the craniovertebral junction confirmed tonsillar herniation in all cases and allowed the definition of two anatomically distinct categories of the Chiari malformation in this age group. Twenty of the 35 patients had concomitant syringomyelia and were classified as Type A. The remaining 15 patients had evidence of frank herniation of the brain stem below the foramen magnum without evidence of syringomyelia and were labeled Type B. Type A patients had a predominant central cord symptomatology: Type B patients exhibited signs and symptoms of brain stem or cerebellar compression. The principal surgical procedure consisted of decompression of the foramen magnum, opening of the fourth ventricular outlet, and plugging of the obex. Significant improvement in preoperative symptoms and signs was observed in 9 of the 20 patients (45%) with syringomyelia (Type A), as compared to 13 of the 15 patients (87%) without syringomyelia (Type B). Postoperative reduction in syrinx volume was observed in 11 of the 20 patients with syringomyelia, including all 9 patients with excellent results. Magnetic resonance imaging has allowed a classification of the adult Chiari malformation in adults based on objective anatomic criteria, with clinical and prognostic relevance. The presence of syringomyelia implies a less favorable response to surgical intervention.

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