Monday, May 24, 2010

Marjolin Ulcer-MRI

Malignant degeneration of untreated chronic wounds is a well-known complication. These rare, aggressive tumors that originate in chronically nonhealing wounds are called Marjolin’s ulcer. This is a 15 year old boy with long standing burn scar on the forearm.

Case submitted by Dr Yasmin Usmani, Meerut

Teleradiology Providers

Pneumocystis Carnii-CT

The hallmark finding of PCP on HRCT scans is ground-glass attenuation, which is present in more than 90% of patients and represents an exudative alveolitis. The term ground-glass refers to parenchymal opacification, which does not obscure the underlying pulmonary architecture. This usually occurs in a bilateral, symmetric, predominantly perihilar distribution and may be geographic or mosaic in appearance, with areas of normal lung adjacent to areas of affected lung. Thickening of interlobular septa (due to edema) and foci of consolidation may be associated.

Sunday, May 16, 2010

Spinal Intradural Arachnoid Cyst-MRI

Intradural spinal arachnoid cysts are secondary to a congenital deficiency within the arachnoidal trabecula, especially in the septum posticum, or are the result of adhesions resulting from previous infection or trauma. Reported by -Teleradiology Providers

Wednesday, May 12, 2010

Nontraumatic Skull Base Defect with CSF Rhinorrhea

The sphenoid sinus is a frequent site of spontaneous osteodural defects. Originally described by Cruveilhier in 1877 and Sternberg the lateral craniopharyngeal canal corresponds to a fusion line of the basisphenoid with the greater sphenoid wing. Probably more relevant are aberrant arachnoid granulations, which have penetrated the dura but failed to reach a venous sinus in this location. Accordingly, a smooth lobulated appearance of the defects has been described from an anatomic standpoin as well as by CT and has been designated as "arachnoid pits." The concept of arachnoid granulations as precursors of osteodural defects seems to hold true for the lateral wall of the sphenoid sinus.

Tuesday, May 04, 2010

Carotid Artery Stenting

Carotid artery disease is a major cause of stroke.Addressing the carotid artery disease with carotid artery stenting significantly reduces the risk of stoke.

Video on You Tube Showing Carotid Artery Stenting

Submitted by

Dr. Sibasankar Dalai, MD, FACP
Consultant Interventional Radiologist & Neuroradiologist,
Seven Hills Hospital, Vizag, India, Pin: 530002

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