Scaphoid Angulation and the Cortical Ring Sign

The open-ring sign.

A 12-year-old boy presented to us with subacute onset of progressive quadriparesis and blurring of vision in the right eye. His sensorium was normal. There was hyper-reflexia and spasticity in all four limbs and the plantar reflex was bilaterally extensor. Vision in the right eye was 6/18. The fundus examination was normal. Cerebrospinal fluid revealed normal sugar, normal cells with raised pro...

Isolated cortical vein thrombosis - the cord sign.

Isolated cortical vein thrombosis is an uncommon condition and often difficult to diagnose, both clinically and radiologically. We report a case of a 38 years old man who presented with headache of new onset and clinical examination was unremarkable. The unenhanced brain CT did not reveal any abnormality. In view of unrelenting headache and partial seizures, we performed magnetic resonance imag...

Traffic Sign Classification Using Ring Partitioned Method

--Traffic sign recognition usually consists of two parts : detection and classification. In this paper we describe the classification stage using ring partitioned method. In this method, first the RGB image is converted into gray scale image using color thresholding and histogram specification technique. This gray scale image, called as specified gray scale image is invariant to the illuminatio...

Portal annular pancreas: the pancreatic duct ring sign on MRCP

Portal annular pancreas is a rare pancreatic variant in which the uncinate process of the pancreas extends and fuses to the dorsal surface of the body of the pancreas by surrounding the portal vein. It is asymptomatic, but it can be mistaken for a pancreatic head mass on imaging and could also have serious consequences during pancreatic surgery, if unrecognized. We report this case of a 53-year...

The Scaphoid: Complications and Treatment