Items tagged “musculoskeletal”

76 results found
Article

Ulnar nerve dislocation (at elbow)

Ulnar nerve dislocation (or it if occurs to lesser degree ulnar nerve subluxation) at the elbow is an uncommon cause of pain and paresthesia in the ulnar nerve distribution. It occurs if the ulnar nerve subluxes and then dislocates over the anterior aspect of the medial epicondyle during flexion...
Article

Ultrasound of the knee

Ultrasound of the knee allows high-resolution imaging of superficial knee anatomy while simultaneously allowing dynamic evaluation of some of the tendons and ligaments. Knee ultrasound is somewhat limited compared with ultrasound examinations of other joints because the cruciate ligaments and th...
Case

Osteomyelitis - first digit proximal phalanx

 Diagnosis almost certain
Derek Smith
Published 28 Dec 2014
75% complete
X-ray
Article

Lodwick classification of lytic bone lesions

The Lodwick classification is a system for describing the margins of a lytic bone lesion (or lucent bone lesion). The terms used in the description suggest the level of concern for an aggressive, and possibly malignant, process. Classification type 1: geographic 1A: thin, sclerotic margin 1B...
Article

Acromial apophysiolysis

Acromial apohysiolysis is a finding on shoulder MRI that may be encountered in patients with an unfused acromial apophysis. It is associated with athletes in throwing sports. Clinical presentation Presents with superior shoulder tenderness in a patient <25 years old, often in a young throwing ...
Case

Tumoral calcinosis

 Diagnosis certain
Matt A. Morgan
Published 23 Jan 2015
86% complete
X-rayCT
Article

Calcinosis universalis

Calcinosis universalis is a condition characterized by long bands or sheets of symmetrical calcifications in skin, subcutaneous tissues, muscles and tendons 5. It is considered a diffuse form of calcinosis cutis. Clinical presentation It usually presents <20 years of age, and is more common in...
Article

Bent bone dysplasias (differential)

Bent bone dysplasias are a class of bone dysplasia included in a 2010 classification of genetic skeletal disorders 1. campomelic dysplasia Stuve-Weidemann dysplasia kyphomelic dysplasias, a diverse class, including congenital bowing of the long bones cartilage-hair hypoplasia (CHH; metaphys...
Article

Ainhum

Ainhum, also known as dactylolysis spontanea, is a rare cutaneous condition in which a hyperkeratotic band partially or totally encircles a digit. The constriction thins the underlying bone, which is then prone to fracture. Some cases result in autoamputation. Epidemiology Some have suggested ...
Article

Frostbite

Frostbite is a focal tissue injury from exposure to extremely low temperatures, and most commonly involves the fingers and toes. It is most commonly encountered in radiology in a differential for acro-osteolysis. Pathology Tissue injury from frostbite occurs in two ways 1: direct tissue necro...
Case

Bucket-handle tear

Abdalla Al-Khashmani
Published 04 Feb 2015
59% complete
MRI
Article

Coracoid process fracture

Coracoid process fractures are an uncommon type of scapular fracture. They do not often occur in isolation and are often associated with acromial, clavicular, or other scapular fractures, as well as glenohumeral dislocation or acromioclavicular joint injury. Epidemiology Coracoid fractures rep...
Article

Goutallier classification of rotator cuff muscle fatty degeneration

The Goutallier classification is a classification system used to quantify the amount of fatty degeneration of the rotator cuff muscles, particularly in the context of rotator cuff tendon tears. Although originally described in shoulder CT 1, it is applicable and now most commonly used in MR. It ...
Case

Fibrous cortical defect

 Diagnosis almost certain
Andrei Tsoriev
Published 11 Feb 2015
77% complete
CT
Case

Anterior cruciate ligament rupture with medial meniscus bucket handle tear - double PCL sign

 Diagnosis certain
Amro Omar
Published 19 Feb 2015
95% complete
MRI
Case

Multiple tendinous xanthomata in familial hypercholesterolemia

 Diagnosis almost certain
Rushani Samarakoon
Published 27 Feb 2015
80% complete
MRI
Article

Ottawa knee rules

The Ottawa knee rules are a clinical decision-making strategy for determining which patients require radiographic imaging for knee pain following trauma. A patient with knee pain qualifies for knee radiographs if any of the following apply: 55 years or older point tenderness at the fibular he...
Article

Pittsburgh knee rules

The Pittsburgh knee rules are a clinical decision-making strategy for determining which patients require radiographic imaging for knee pain. A patient with knee pain qualifies for a radiograph if: fall or blunt trauma <12 years old or >50 years old inability to take four steps, regardless of...
Article

Traumatic neuroma

Traumatic neuromas may occur from acute or chronic injury to a nerve. Clinical presentation The patient presents with a focal area of pain and tenderness to palpation. There should be a history of injury (including iatrogenic injury, i.e. surgery) to the area. They may develop 1-12 months afte...
Article

Joplin neuroma

Joplin neuromas are rare compression traumatic neuromas, involving the proper digital nerve of the great toe (a branch of the medial plantar nerve). Clinical presentation Pain and tenderness at the first digit metatarsophalangeal joint. More common in soccer players and in patients post bunion...