Friday, April 30, 2010
First branchial cleft cyst are of two types--Type I cysts are located near the external auditory canal. Most commonly, they are inferior and posterior to the tragus (base of the ear), but they may also be in the parotid gland or at the angle of the mandible. Type I cysts may be difficult to distinguish from a solid parotid mass on clinical examination. Type II cysts are associated with the submandibular gland or found in the anterior triangle of the neck. Thin capsular enhancement is noted on post contrast scans.
Reported by Teleradiology Providers
Monday, April 26, 2010
Lobar holoprosencephaly occurs with partial fusion of the frontal lobe with an otherwise normally formed interhemispheric fissure, lateral ventricular formation, variable and incomplete absence of the anterior corpus callosum and/or septum pellucidum, and separate thalami.
Saturday, April 24, 2010
Although these conditions are believed to be two different entities, it is difficult to differentiate them from one another on imaging and clinical studies. Both occur in the midline. Müllerian duct cysts originate from the remnants of the müllerian duct. Prostatic utricle cysts result from the dilatation of the prostatic utricle. Müllerian duct cysts may originate from the region of the verumontanum but usually extend above the prostate and may be slightly lateral to the midline. They do not communicate with the urethra. Prostatic utricle cysts always arise from the verumontanum and are always in the midline, and they communicate with the urethra.
Wednesday, April 21, 2010
This is a 22 year old male, with T1/T2 hyperintense mass with signal suppression on T2 *GRE consiting of blood products in varying stages. There was calcification on plain CT head. Pathological diagnosis was cavernoma. Cavernous malformations are benign vascular lesions of the central nervous system that lack intervening normal brain parenchyma. Giant cases are rare.
Saturday, April 17, 2010
Extramedullary T1 hypointense and T2 hyperintense lesion at the level of D5-D6 vertebral level measuring 1.8 x 1.1cm with linear tract in the posterior spinal region. There is resultant cord compression and anterolateral displacement of the spinal cord at this level with altered intramedullary cord signal intensity. These findings possibly indicate dorsal dermal sinus and associated epidural abscess.
Friday, April 16, 2010
Lateral patellar dislocation (LPD) is a common cause of acute traumatic hemarthrosis in young active patients. However, dislocation is usually transient, and patients are frequently unaware that it has occurred. Characteristic MRI findings include joint effusion and contusion or osteochondral injury of the anterolateral portion of the lateral femoral condyle and medial patella. Injury to the medial stabilizers of the patella is also identified as disruption of the medial retinaculum at its patellar attachment or midsubstance.
Spinal epidural lipomatosis is a disorder characterized by an abnormal accumulation of unencapsulated adipose tissue in the extradural space of the spinal canal. The distal lumbar spine and the mid and distal thoracic spine are the most commonly involved sites, with rare involvement of the cervical spine. Most cases have been attributed to long standing exogenous steroid administration. This is a 18 year old girl on treatment for neurocysticercosis on long term steroids presented with back ache. The dural sac will often have a characteristic geometric “Y-shaped,” polygonal spiculated or stellar deformation resulting from the presence of the meningovertebral ligaments.
Tuesday, April 13, 2010
Reported by Teleradiology Providers
Saturday, April 10, 2010
Friday, April 09, 2010
The absence of the sternal head of the pectoralis major muscle is considered the minimal expression of poland's syndrome. The skin of the area is hypoplastic with a thinned subcutaneous layer, and the axillary hair may be absent. The ipsilateral nipple is often smaller and higher in both male and female patients, and the breast is generally hypoplastic in female patients. Incidentally reported in this case.
Primary thalamic tumors are rare and bilateral thalamic tumors are even rarer. The incidence, clinical manifestations, natural history and prognosis of primary bilateral thalamic gliomas (PBTT) remain relatively obscure. Spectroscopy reveals raised choline-creatinine ratio.
Monday, April 05, 2010
This is a patient who presented to our OPD with findings of progressive dementia and vision loss. MRI showed cortical hyperintensity on DWI. EEG findings were also characteristic. Cerebral imaging is a vital part of the exclusion of other diagnosis & normal brain imaging, in the face of a rapidly progressive devasting encephalopathy, may lead to a consideration of CJD. MRI may show diffuse areas of increased cortical signal bilaterally on T2W and FLAIR images. The DWI demonstrates more accurately the hyperintense lesions.
Second Opinion by- Teleradiology Providers.
"Urgent warnings by government experts about the risks of routinely using powerful CT scans to screen patients for colon cancer were brushed aside by the Food and Drug Administration, according to agency documents and interviews with agency scientists. "
Source- NY TIMES
Friday, April 02, 2010
Less often reported association, note polycystic kidneys associated hepatic cysts, and chronic calcific pancreatitis. MRCP reveals dilated pancreatic duct with intraductal calculi.
Reported by- Teleradiology Providers
- ► 2012 (229)
- ► 2011 (282)
- Spinal Epidural Arachnoid Cyst-MRI
- First Branchial Cleft Cyst-CT
- Carcinoma Stomach with Peritoneal Deposits- CT & M...
- Spinal Epidural Lymphoma-MRI
- Holoprosencephaly - MRI
- Müllerian Duct Cysts and Prostatic Utricle Cysts
- Large Intracerebral Cavernoma
- Dorsal Dermal Sinus with Epidural Abscess-MRI
- Acute Lateral Patellar Dislocation-MRI
- Spinal epidural lipomatosis-MRI
- Fibrous Dysplasia of Temporal Bone
- Kienbocks Disease
- Poland's Syndrome-CT
- Arnold Chiari Malformation
- Bilateral Thalamic Gliomas-MRI & MRS
- Coccygeal Lipoma-MRI
- Creutzfeldt–Jakob disease-MRI
- Increased Radiation concerns over CT scan
- Polycystic Kidney Disease with Chronic Pancreatiti...
- Neurocysticercosis with intramuscular cysticercosi...
- ▼ April (20)
- ► 2009 (191)
- ► 2008 (194)
- ► 2007 (131)
- ► 2006 (221)
- ► 2005 (158)