Ligamentous injuries of the knee occur during sports and where there is extensive injury associated with subluxation or dislocation. We present a case of an obese female who sustained spontaneous non-traumatic posterior knee dislocation when she caught her foot while rising from the sitting down position. There was associated peroneal nerve injury but an angiogram confirmed no vascular compromi...

A 69-year-old obese man (body mass index, 30.3) presented with acute left abdominal pain after severe coughing. He had no history of direct abdominal trauma. He was not receiving anticoagulant therapy. A physical examination showed a smooth painful mass on his left abdominal wall. The laboratory findings were a platelet count of 196,000/ mm and a normal range of coagulability. Ultrasonography r...

A DIALYSIS, or separation of the two ectodermal retinal layers at the ora, occurs in the following circumstances: (1) In the senile eye, when the dialyses are usually small and multiple and situated anywhere in the periphery. (2) In the aphakic eye, when the dialyses may be single or multiple, often in the upper half of the retina. (3) In the normal emmetropic eye which has received definite tr...