The location of parotid gland tumors in relation to the facial nerve on magnetic resonance images and computed tomography scans

A 43 year old man with a traumatic amnesic syndrome experienced only a brief, if any, loss of consciousness following an injury to the head. Four years after this injury, his results on standard psychometric assessment were normal. Long-latency evoked response potentials results were normal, and the neurological examination and computed tomography scans were unhelpful in explaining his amnesic symptoms. He had no history of alcohol abuse, yet his neuropsychological profile was that of a Korsakoff-like amnesia with frontal lobe features. Magnetic-resonance images demonstrated evidence of extensive frontal lobe damage, while cerebral blood flow studies provided additional evidence of bilateral frontal lobe dysfunction. The case highlights the need for those giving opinions in medico-legal head trauma cases to go beyond a reliance on routine indicators, such as duration of coma, results of standard psychometric assessment and computed tomography scans, to more specialised neuropsychological evaluations and magnetic-resonance imaging scans.

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Influence of post-label delay time on the performance of 3D pseudo-continuous arterial spin labeling magnetic resonance imaging in the characterization of parotid gland tumors

European Radiology ◽

10.1007/s00330-021-08220-1 ◽

2021 ◽

Author(s):

Hao Hu ◽

Lu Chen ◽

Liu-Ning Zhu ◽

Wei Chen ◽

Guo-Yi Su ◽

...

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Parotid Gland ◽

Delay Time ◽

Arterial Spin Labeling ◽

Spin Labeling ◽

Resonance Imaging ◽

Parotid Gland Tumors ◽

Continuous Arterial Spin Labeling

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Computed Tomography and Magnetic Resonance Images of Adrenocortical Oncocytoma Cases

Journal of Korean Medical Science ◽

10.3346/jkms.2014.29.3.445 ◽

2014 ◽

Vol 29 (3) ◽

pp. 445 ◽

Cited By ~ 3

Author(s):

Jung-Hee Yoon ◽

Seong-Sook Cha ◽

Seong Kuk Yoon

Keyword(s):

Computed Tomography ◽

Magnetic Resonance ◽

Magnetic Resonance Images

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Facial nerve anomalies in paediatric cochlear implant candidates: radiological evaluation

The Journal of Laryngology & Otology ◽

10.1017/s0022215116009555 ◽

2016 ◽

Vol 131 (1) ◽

pp. 26-31 ◽

Cited By ~ 9

Author(s):

F B Palabiyik ◽

K Hacikurt ◽

Z Yazici

Keyword(s):

Magnetic Resonance Imaging ◽

Computed Tomography ◽

Magnetic Resonance ◽

High Resolution ◽

Facial Nerve ◽

Cochlear Implant ◽

Inner Ear ◽

Resonance Imaging ◽

High Resolution Computed Tomography ◽

Ear Anomalies

AbstractBackground:Pre-operative radiological identification of facial nerve anomalies can help prevent intra-operative facial nerve injury during cochlear implantation. This study aimed to evaluate the incidence and configuration of facial nerve anomalies and their concurrence with inner-ear anomalies in cochlear implant candidates.Methods:Inner-ear and concomitant facial nerve anomalies were evaluated by magnetic resonance imaging and temporal high-resolution computed tomography in 48 children with congenital sensorineural hearing loss who were cochlear implant candidates.Results:Inner-ear anomalies were present in 11 out of 48 patients (23 per cent) and concomitant facial nerve anomalies were present on 7 sides in 4 patients (7 per cent of the total). Facial nerve anomalies were accompanied by cochlear or vestibular malformation.Conclusion:Potential facial nerve abnormalities should always be considered in patients with inner-ear anomalies. Pre-operative facial nerve imaging can increase the surgeon's confidence to plan and perform cochlear implantation. Magnetic resonance imaging should be used to detect inner-ear anomalies; if these are identified, temporal high-resolution computed tomography should be used to evaluate the facial nerve.

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Surgical treatment of benign parotid gland tumors in the years 2014–2018 at the ENT department of Hospital České Budějovice, a.s.

Otorinolaryngologie a foniatrie ◽

10.48095/ccorl202182 ◽

2021 ◽

Vol 70 (2) ◽

pp. 82-88

Author(s):

Hana Zapletalová ◽

Martin Kuchař ◽

Lubor Mrzena

Keyword(s):

Surgical Treatment ◽

Parotid Gland ◽

Facial Nerve ◽

Pleomorphic Adenoma ◽

Benign Tumors ◽

Histological Structure ◽

Warthin’S Tumor ◽

Parotid Gland Tumors ◽

Warthin's Tumor ◽

Keywords Parotid Gland

ntroduction: Salivary tumors represent a heterogeneous group of tumors of diverse location, histological structure and bio logical behavior. The purpose of this study was a retrospective evaluation of surgical treatment of a group of patients with newly dia gnosed benign tumors of the parotid salivary gland operated in the years 2014–2018 at the ENT department of Hospital České Budějovice, a.s. Material and methods: A type of surgery, defi nitive histology, postoperative complications and a number of recurrences were monitored. The data were evaluated by descriptive statistical methods. Results: A total of 190 surgeries with benign histological fi ndings in 182 patients were performed. The most common benign result was Warthin‘s tumor (90 cases, 47.4%), followed by pleomorphic adenoma (66 cases, 34.7%). Uncommon histological types of tumors were dia gnosed in 14 patients (7.4%). Non-tumorous fi ndings were found in 20 cases (10.5%). The most frequently performed procedure in 84 cases (44.2%) was extracapsular extirpation. Transient lesion in the area of innervation of the temporofacial and / or cervicofacial branch of the facial nerve was present in 34 (17.9%) patients. Permanent paresis of some of the branches of the facial nerve was reported in 2 (1.1%) patients. In 12 patients, the postoperative course was complicated by the development of salivary fi stula (6.3%). Pleomorphic adenoma relapsed after extracapsular extirpation in 5 cases (20.0%). After partial parotidectomy, one recurrence of pleomorphic adenoma (3.6%) was recorded. Warthin‘s tumor relapsed after simple extirpation in 4 cases (20.0%). Conclusion: Our evaluation results of the surgical treatment of benign parotid gland tumors lead us to make further eff orts improve the care of our patients. We see reserves mainly in the routine use of ultrasonographic examination with performance FNAC and thus planning a safe and suffi ciently radical operational solution. Keywords: parotid gland – pleomorphic adenoma – Warthin‘s tumor – parotidectomy – recurrence – facial nerve paresis – FNAC

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Extranodal NK/T-cell lymphoma in adolescents: imaging findings of a consecutive 7-year case series

Journal of International Medical Research ◽

10.1177/0300060518822406 ◽

2019 ◽

Vol 47 (3) ◽

pp. 1210-1220 ◽

Cited By ~ 2

Author(s):

Pujun Guan ◽

Zihang Chen ◽

Lei Chu ◽

Li Zhen ◽

Li Zhang ◽

...

Keyword(s):

Computed Tomography ◽

T Cell ◽

Magnetic Resonance ◽

Communication Systems ◽

Cell Lymphoma ◽

Magnetic Resonance Images ◽

T Cell Lymphoma ◽

Imaging Characteristics ◽

Adjacent Structures ◽

Nk T Cell

Objectives Extranodal NK/T-cell lymphoma is reportedly a rare but emerging type of lymphoma in adolescents. The present study was performed to specify its imaging characteristics. Methods Our hospital’s picture archiving and communication systems were searched from January 2009 to December 2016. We identified 13 patients aged <18 years with pathologically confirmed extranodal NK/T-cell lymphoma in the head and neck region. The computed tomography and magnetic resonance images were reviewed to summarize the imaging characteristics of extranodal NK/T-cell lymphoma in adolescents. Results The mean age at onset was 15.2 ± 1.46 years (range, 12–17 years) with a male:female ratio of 1.17:1.00. Most of the patients (n = 10) displayed nasal cavity and/or paranasal involvement. The tumor was homogeneous in both computed tomography and magnetic resonance images and showed slight enhancement. No calcification or liquefactive necrosis was observed. Adjacent structures were usually involved. Conclusion Suggestive imaging characteristics could acquaint specialists with extranodal NK/T-cell lymphoma in adolescents, facilitating improved early recognition of the diagnosis and helping to improve the patient’s outcome.

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