Swelling of Elbow, Later Proved to Be Chondroma

Acute Onset of Elbow Swelling.

A 50-year-old man presented with swelling in his right elbow that began 10 days earlier. He had no history of injury to the arm, but he often rested his elbows on his desk at work. The elbow was not painful, and there was no arthralgia. He did not have a fever. His medical history was significant for chronic glomerulonephritis. He had been on hemodialysis for one year. Physical examination reve...

Quantum Measurements Cannot be Proved to be Random

The postulates of quantum mechanics say that when a measurement is made on a quantum state the outcome of the measurement is random [1]. In classical physics, if the state of a closed system is known, then the state of that system is completely predictable. As far as we know, randomness only exists in quantum mechanics [2]. Everett proposed a purely unitary quantum theory [3] (without probabili...

Unusual Olecranon Swelling – Epidermoid Cyst of Elbow

Epidermoid cysts are relatively common entities, but we present a large cyst which occurred almost directly over the olecranon, a previously unreported location. The 31 year old male patient had a history of previous epidermoid cysts in the head/ neck and after en block excision there has been no recurrence at 4 years.

The Case Against Exchange Transfusion Has Yet to Be Proved

Tan et al are to be congratulated for achieving the difficult task of synthesizing the many disparate pieces of data on the subject of exchange transfusion (ET) [1]. However, we believe their conclusion that “adjunct ET cannot be recommended” should have been qualified with an acknowledgment that they have shown a “lack of evidence for benefit” rather than “evidence for lack of benefit.” The re...

Mercosul: Has Political Will Proved to Be Enough?