An Unusual Presentation of a Massive Acromioclavicular Joint Ganglion Cyst Geyser Sign Secondary to Massive Rotator Cuff Tear and Cuff Arthropathy.

A Geyser sign is a rare manifestation of acromioclavicular joint (ACJ) ganglion cysts that are seen in patients with massive rotator cuff tears and arthritis of the ACJ. We present a case report of a 70-yr-old male who was presented to our hospital with a massive AC ganglion cyst measuring 7 × 8 cm with normal shoulder function tests. Imaging studies revealed a massive rotator cuff tear, advanced cuff arthropathy, degeneration of the ACJ, and a Geyser sign (seen with magnetic resonance imaging). The cyst was initially aspirated but recurred, so open debridement distal clavicle resection and ganglion cyst excision were performed. Eight months following debridement, the patient visited the outpatient department with cyst recurrence and limited shoulder movement. A reverse shoulder arthroplasty was performed with good clinical results.

Distal Oblique Bundle in the Distal Interosseous Membrane of the Forearm: Review of Current Knowledge.

The distal oblique bundle has been recognized as a distinct structure of the distal interosseous membrane of the forearm since 2009, when Noda et al. named it. Our minireview will attempt to summarize knowledge gathered and provide guidelines toward possible questions that arise when reading studies about this topic. It is our strong belief that the distal oblique bundle is worth investigating in full, since it seems to have an important role as a stabilizer of the distal radioulnar joint. Due to the efforts of a small number of surgeons and authors, the groundwork for understanding its purpose has been laid, but more research needs to be done.

Nontraumatic Osteolysis of the Distal Clavicle: Diagnostic Approach and Management.

Osteolysis of the distal clavicle is a rare radiological manifestation. It can be of traumatic or nontraumatic origin and is usually seen in weight-lifting trainers as a result of stress-induced osteolysis of the distal clavicle, a phenomenon known as stress failure syndrome. We present a rare case of nontraumatic osteolysis of the distal clavicle in a 65-year-old, male, non-weight lifter who was referred to our outpatient clinic. Osteolysis was revealed on plain radiographs and was confirmed with magnetic resonance imaging. Diagnostic approach, differential diagnosis, and management of this rare manifestation are discussed.