Plexiform neurofibroma affecting the upper parietal scalp, with cerebellar hamartoma:role of histopathology, colour Doppler imaging and magnetic resonance imaging

2013 ◽  
Vol 38 (3) ◽  
pp. 285-288
Author(s):  
V. N. Sehgal ◽  
R. Oberai ◽  
P. Venkatash ◽  
S. Sharma ◽  
P. Verma ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Plexiform Neurofibroma ◽  
Doppler Imaging ◽  
Resonance Imaging ◽  
Colour Doppler ◽  
Colour Doppler Imaging

Solitary Plexiform Neurofibroma(s): Role of Magnetic Resonance Imaging

2007 ◽  
Vol 6 (2) ◽  
pp. 99-100 ◽  
Author(s):  
Virendra N. Sehgal ◽  
Govind Srivastava ◽  
Ashok K. Aggarwal ◽  
Rakesh Oberoi ◽  
Sonal Sharma
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Plexiform Neurofibroma ◽  
Resonance Imaging

Multiparametric ultrasound imaging characteristics of multiple testicular adrenal rest tumours in congenital adrenal hyperplasia

Ultrasound ◽  
2021 ◽  
pp. 1742271X2198908
Author(s):  
Nina M Mansoor ◽  
Dean Y Huang ◽  
Paul S Sidhu
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Congenital Adrenal Hyperplasia ◽  
Imaging Features ◽  
Adrenal Hyperplasia ◽  
Resonance Imaging ◽  
Colour Doppler ◽  
Imaging Characteristics ◽  
Contrast Enhanced ◽  
Adrenal Rest

Introduction Testicular adrenal rest cell tumours (TART) are rare benign adrenocorticotropic hormone-dependent testicular tumours, which can develop in patients with congenital adrenal hyperplasia. If left untreated, they can cause testicular tissue damage and infertility. Ultrasound is the imaging modality of choice allowing for non-invasive diagnosis provided that characteristic features are seen. In recent times, magnetic resonance imaging characteristics have also been described to aid diagnosis. Case Report This case describes the imaging features of multiple bilateral TART in a young patient with congenital adrenal hyperplasia. Traditional greyscale and colour Doppler ultrasound demonstrated intratesticular, predominantly hypoechoic areas, with increased surrounding colour Doppler flow. In addition, contrast-enhanced ultrasound and strain elastography were performed, showing increased TART vascularisation and increased stiffness in the hypoechoic areas. Subsequent magnetic resonance imaging confirmed bilateral lobulated, well demarcated, intratesticular lesions, which appeared predominantly isointense on T1-weighted imaging, hypointense on T2-weighted imaging, with heterogeneous enhancement following gadolinium administration. Discussion This case illustrates the sonographic features including greyscale, colour Doppler, contrast and elastography ultrasound of TART in a patient with congenital adrenal hyperplasia. Both contrast-enhanced ultrasound and elastography can provide information about tissue properties not normally derived from conventional ultrasound and aid accurate diagnosis. Additional magnetic resonance imaging is not normally required with typical ultrasound appearances. The unusual findings seen on the ultrasound examination were likely secondary to poor compliance with treatment. Conclusion Familiarity and recognition of characteristic and uncommon imaging features of these tumours are important to avoid misdiagnosis and surgical intervention.

scholarly journals Magnetic Resonance Imaging as an Adjunct to Ultrasound in Evaluating Cesarean Scar Ectopic Pregnancy

2013 ◽  
Vol 3 ◽  
pp. 16 ◽  
Author(s):  
Rebecca Wu ◽  
Michelle A. Klein ◽  
Sabrina Mahboob ◽  
Mala Gupta ◽  
Douglas S. Katz
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Cesarean Section ◽  
Ectopic Pregnancy ◽  
Transvaginal Ultrasound ◽  
Doppler Imaging ◽  
Resonance Imaging ◽  
Cesarean Scar ◽  
Number Of Patients ◽  
Adjacent Structures

Cesarean scar pregnancies (CSPs) are a relatively rare form of ectopic pregnancy in which the embryo is implanted within the fibrous scar of a previous cesarean section. A greater number of cases of CSPs are currently being reported as the rates of cesarean section are increasing globally and as detection of scar pregnancy has improved with use of transvaginal ultrasound (TVUS) with color Doppler imaging. Delayed diagnosis and management of this potentially life-threatening condition may result in complications, predominantly uterine rupture and hemorrhage with significant potential maternal morbidity. Diagnosis of a cesarean scar pregnancy (CSP) requires a high index of clinical suspicion, as up to 40% of patients may be asymptomatic. TVUS has a reported sensitivity of 84.6% and has become the imaging examination of choice for diagnosis of a CSP. Magnetic resonance imaging (MRI) has been used in a small number of patients as an adjunct to TVUS. In the present report, MRI is highlighted as a problem-solving tool capable of more precisely identifying the relationship of a CSP to adjacent structures, thereby providing additional information critical to directing appropriate patient management and therapy.

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