Items tagged “ultrasound”

430 results found
Article

Adult granulosa cell tumor of the ovary

Adult granulosa cell tumor of the ovary is a type of ovarian sex cord / stromal tumor. They are by far the most frequent subtype of granulosa cell tumors of the ovary (95%) and are commoner than the juvenile granulosa tumor of the ovary. Epidemiology Approximately two-thirds of this subtype ar...
Article

Ovarian Sertoli-Leydig cell tumor

Ovarian Sertoli-Leydig cell tumors (SLCT), also known as an ovarian androblastomas, are a subtype of ovarian sex cord-stromal tumor. Epidemiology They are rare and only account for ~0.5% of all ovarian tumors. While they can present at any age, they typically present <30 years old, with a mean...
Article

Absent fetal stomach on ultrasound (differential)

Non-visualization of the fetal stomach on ultrasound can occur with various physiological as well as pathological processes. It becomes a significant sonographic observation >14 weeks of gestation (about the time the fetus begins to swallow). Causes include: physiological emptying: transient ...
Article

Tubular ectasia of rete testis

Tubular ectasia of rete testis represents dilated testicular mediastinal tubules.  Epidemiology This condition is more common in men over the age of 55 years.  Pathology This is a benign condition thought to result from the partial or complete obliteration of the efferent ducts. These sperma...
Article

Second trimester ultrasound scan

The second trimester scan is a routine ultrasound examination in many countries that is primarily used to assess fetal anatomy and detect the presence of any fetal anomalies.  The second trimester extends from 13 weeks and 0 days to 27 weeks and 6 days of gestation although the majority of thes...
Case

Breast cancer on ultrasound

 Diagnosis almost certain
Dr Roberto Schubert
Published 17 Nov 2011
57% complete
Ultrasound
Case

Lower limb deep vein thrombosis

Longitudinal popl...
 Diagnosis certain
Dr Roberto Schubert
Published 28 Nov 2011
75% complete
Ultrasound
Article

Cryptorchidism

Cryptorchidism refers to an absence of a testis (or testes) in the scrotal sac. It may refer to an undescended testis, ectopic testis, or an atrophic or absent testis. Correct localization of the testes is essential because surgical management varies on location. Pathology The testes develop i...
Article

Testicular yolk sac tumor

Testicular yolk sac tumors (also known as endodermal sinus tumor of the testis) is the most common childhood testicular tumor (80%), with most cases occurring before the age of two years 1. In adults, pure yolk sac tumor is extremely rare, however mixed germ cell tumor are commonly seen. Pathol...
Article

Junctional parenchymal defect of kidney

Junctional parenchymal defects in renal imaging are a normal variant. Pathology It results from the incomplete embryonic fusion of renunculi. Radiographic features Ultrasound It can be seen as a triangular echogenic cortical defect, frequently seen in upper lobe parenchyma. The defect is th...
Case

Tip appendicitis

 Diagnosis almost certain
Dr Maulik S Patel
Published 11 Jan 2012
66% complete
Ultrasound
Article

Peyronie disease

Peyronie disease is the most common cause of painful penile induration. Fibrous tissue plaques form within the penile tunica albuginea, causing painful deformity and shortening of the penis. Though clinical diagnosis is usually accurate, the role of imaging is to evaluate extension of plaques, w...
Case

Perforated appendix

 Diagnosis almost certain
Dr Maulik S Patel
Published 13 Jan 2012
75% complete
Ultrasound
Case

Hydronephrosis due to calculus

 Diagnosis certain
Dr Chris O'Donnell
Published 05 Feb 2012
79% complete
Ultrasound
Case

Temporal arteritis

 Diagnosis probable
Dr Roberto Schubert
Published 10 Feb 2012
69% complete
Ultrasound
Case

Ureteric stone and prostate hypertrophy

 Diagnosis almost certain
Dr Mohammad Osama Yonso
Published 06 Mar 2012
63% complete
Ultrasound
Case

Bladder tumor and atypical renal cyst

 Diagnosis possible
Dr Mohammad Osama Yonso
Published 06 Mar 2012
41% complete
Ultrasound
Article

Hyperechoic liver lesions

A hyperechoic liver lesion on ultrasound can arise from a number of entities, both benign and malignant. A benign hepatic hemangioma is the most common entity encountered, but in patients with atypical findings or risk for malignancy, other entities must be considered. Benign hepatic hemangiom...
Article

Sonographic halo sign

Sonographic halo sign is used in a number of situations. They include: hypoechoic halo sign (also known as target or bull's eye sign) in liver metastases: used in hepatobiliary imaging, is a concerning feature for malignant lesion if the lesion is a hyperechoic liver lesion 1,2 ultrasound halo...
Case

Extra-truncular congenital vascular malformation of the abdominal wall

FIESTA fat sat
 Diagnosis almost certain
Dr Roberto Schubert
Published 17 Apr 2012
60% complete
MRIUltrasoundPhoto

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