scholarly journals Encapsulated papillary variant of medullary carcinoma of thyroid with extensive cystic change: an extremely rare presentation

2020 ◽  
Author(s):  
Monika Singh ◽  
Arvind Ahuja ◽  
Seema Rahar ◽  
Minakshi Bhardwaj
Keyword(s):  
Medullary Carcinoma ◽  
Left Lobe ◽  
Rare Presentation ◽  
Thyroid Medullary Carcinoma ◽  
Contrast Enhanced ◽  
Enhanced Computed Tomography ◽  
Cut Surface ◽  
Contrast Enhanced Computed Tomography ◽  
Thyroid Parenchyma ◽  
Gross Examination

Papillary variant of medullary carcinoma of the thyroid is an unusual subtype with many diagnostic challenges. The  authors report a case of papillary variant of thyroid medullary carcinoma in a 37- year-old female, who presented with complaints of pain in the thyroid nodule  for the latter  two months. Contrast enhanced computed tomography (CECT) neck revealed an enlarged and heterogeneously enhancing left lobe of thyroid. This was followed by hemithyroidectomy for suspicion of colloid goitre. Gross examination of the cut surface of the thyroid parenchyma had a sponge like appearance. On histopathology a diagnosis of encapsulated papillary variant of medullary carcinoma thyroid was made with the help of special stains and immunohistochemistry (IHC).

scholarly journals A rare presentation of midgut malrotation as an acute intestinal obstruction and perforation in an adult

2020 ◽  
Vol 7 (10) ◽  
pp. 3459
Author(s):  
Praveen Gnanadev ◽  
Rohit Krishnappa ◽  
Hariprasad Ramachandra Naidu Taluru ◽  
Gopal Subbaiah ◽  
Gautham Mungaravalli Vasantha ◽  
...  
Keyword(s):  
Intestinal Obstruction ◽  
Intestinal Tract ◽  
Acute Intestinal Obstruction ◽  
Rare Presentation ◽  
Midgut Malrotation ◽  
Contrast Enhanced ◽  
High Index Of Suspicion ◽  
Enhanced Computed Tomography ◽  
Contrast Enhanced Computed Tomography ◽  
Abnormal Anatomy

Midgut malrotation is a congenital anomaly seen usually in childhood. Its presentation as an acute intestinal obstruction is extremely rare in adults usually identified intra operatively. A high index of suspicion is always required when dealing with any case of acute intestinal obstruction. We report a case of young adult who presented with symptoms of acute intestinal obstruction and was diagnosed intra-operatively as cecal volvulus with impending perforation caused by midgut malrotation. Malrotation of the intestinal tract is seen due to aberrant embryology. The presentation of intestinal malrotation in adults is very rare. Contrast enhanced Computed tomography (CT) can show the abnormal anatomy clearly. Anomalies like midgut malrotation can present as an operative dilemma and awareness regarding these conditions can help surgeons deal with these conditions.

scholarly journals Visceral lymphangiomatosis of the spleen and adrenal gland: a rare presentation

2021 ◽  
pp. 201010582110082
Author(s):  
Reddy Ravikanth
Keyword(s):  
Computed Tomography ◽  
Case Report ◽  
Adrenal Gland ◽  
Computed Tomography Imaging ◽  
Rare Presentation ◽  
Tomography Imaging ◽  
Contrast Enhanced ◽  
Systemic Disorder ◽  
Enhanced Computed Tomography ◽  
Contrast Enhanced Computed Tomography

Visceral lymphangiomatosis may occur as a benign isolated entity or as a manifestation of a systemic disorder. Multifocal involvement is exceedingly rare, with gradations ranging from extreme involvement of an isolated organ to focal involvement of multiple viscera. This case report describes the contrast-enhanced computed tomography imaging appearances of visceral lymphangiomatosis of the spleen and adrenal gland in a 31-year-old man.

scholarly journals Porcine Ex Vivo Liver Phantom for Dynamic Contrast-Enhanced Computed Tomography

2011 ◽  
Vol 46 (9) ◽  
pp. 586-593 ◽  
Author(s):  
Scott M. Thompson ◽  
Juan C. Ramirez-Giraldo ◽  
Bruce Knudsen ◽  
Joseph P. Grande ◽  
Jodie A. Christner ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Ex Vivo ◽  
Dynamic Contrast Enhanced ◽  
Contrast Enhanced ◽  
Enhanced Computed Tomography ◽  
Liver Phantom ◽  
Contrast Enhanced Computed Tomography

scholarly journals Contrast enhanced computed tomography findings in 105 horse distal extremities.

2021 ◽  
pp. 103704
Author(s):  
Frederik Pauwels ◽  
Angela Hartmann ◽  
John Al-Alawneh ◽  
Paul Wightman ◽  
Jimmy Saunders
Keyword(s):  
Computed Tomography ◽  
Contrast Enhanced ◽  
Enhanced Computed Tomography ◽  
Contrast Enhanced Computed Tomography

scholarly journals Self-navigated 3D whole-heart MRA for non-enhanced surveillance of thoracic aortic dilation: a comparison to CTA

2021 ◽  
Vol 22 (Supplement_1) ◽  
Author(s):  
P Poskaite ◽  
M Pamminger ◽  
C Kranewitter ◽  
C Kremser ◽  
M Reindl ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Image Quality ◽  
Aortic Aneurysm ◽  
Thoracic Aortic Aneurysm ◽  
Aortic Dilation ◽  
Subjective Image Quality ◽  
Contrast Enhanced ◽  
Whole Heart ◽  
Enhanced Computed Tomography ◽  
Contrast Enhanced Computed Tomography

Abstract Funding Acknowledgements Type of funding sources: None. Background The natural history of thoracic aortic aneurysm (TAA) is one of progressive expansion. Asymptomatic patients who do not meet criteria for repair require conservative management including ongoing aneurysm surveillance, mostly carried out by contrast-enhanced computed tomography angiography (CTA). Purpose To prospectively compare image quality and reliability of a prototype non-contrast, self-navigated 3D whole-heart magnetic resonance angiography (MRA) with contrast-enhanced computed tomography angiography (CTA) for sizing of thoracic aortic aneurysm (TAA). Methods Self-navigated 3D whole-heart 1.5 T MRA was performed in 20 patients (aged 67 ± 8.6 years, 75% male) for sizing of TAA; a subgroup of 18 (90%) patients underwent additional contrast-enhanced CTA on the same day. Subjective image quality was scored according to a 4-point Likert scale and ratings between observers were compared by Cohen’s Kappa statistics. Continuous MRA and CTA measurements were analyzed with regression and Bland-Altman analysis. Results Overall subjective image quality as rated by two observers was 1 [interquartile range (IQR) 1-2] for self-navigated MRA and 1.5 [IQR 1-2] for CTA (p = 0.717). For MRA a perfect inter-observer agreement was found for presence of artefacts and subjective image sharpness (κ=1). Subjective signal inhomogeneity correlated highly with objectively quantified inhomogeneity of the blood pool signal (r = 0.78-0.824, all p <0.0001). Maximum diameters of TAA as measured by self-navigated MRA and CTA showed excellent correlation (r = 0.997, p < 0.0001) without significant inter-method bias (bias -0.0278, lower and upper limit of agreement -0.74 and 0.68, p = 0.749). Inter- and intraobserver correlation of aortic aneurysm as measured by MRA was excellent (r = 0.963 and 0.967, respectively) without significant bias (all p ≤ 0.05). Conclusion Self-navigated 3D whole-heart MRA enables reliable contrast- and radiation free aortic dilation surveillance without significant difference to standardized CTA while providing predictable acquisition time and by offering excellent image quality. Abstract Figure.

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