PSEUDOTUMORAL TOPHACEOUS INVOLVEMENT OF THE ACHILLES PARATENON.

Gout is the most common form of microcrystalline arthropathy which usually does not pose a diagnostic challenge when patients have typical presentation, appropriate biochemical picture and classical radiographic appearance. However, formation of gouty tophi in unusual locations and with atypical presentations may mislead clinicians and radiologists, thereby justifying gout nickname as the "great mimicker". When interpreting images of tendon related masses, radiologists should be aware of gouty tophi as a possible differential given its variable and nonspecific imaging appearance. In this article, we present a case of a patient with a painless tophaceous gout nodule, adjacent to the Achilles tendon.

Calcific Tendinitis of the Longus Colli Muscle.

BACKGROUND: A 49-year-old man presented at the emergency department with neck pain for one week but also with subfebrility, sore throat and difficulties for swallowing for 3 days. Physical examination showed limited neck movement and tenderness of the trapezius muscles. Blood test showed an elevated C-reactive protein level and a mild leukocytosis. Tracheolaryngoscopy was normal.

Milwaukee shoulder syndrome.

Milwaukee shoulder syndrome or rapid destructive arthropathy of the shoulder is a rare form of arthropathy that mainly affects elderly women. It is characterized by a rapid destruction of the glenohumeral joint and the rotator cuff and by an important noninflammatory joint effusion containing hydroxyapatite crystals. Radiography plays an important role in the evaluation of patients with articular disease. However, magnetic resonance imaging is the method of choice for assessing the full extent of osseous, chondral, and soft-tissue involvement.

Takayasu's arteritis in a young Caucasian female: case report and review.

We report a case of a 24-year-old Caucasian woman presenting with fatigue, weight loss, a cardiac murmur, anaemia and biochemical markers of inflammation due to Takayasu's arteritis (TA), a vasculitis of the aorta and large vessels that typically affects young women. The rarity of the disease, the great variability in presentation together with the absence of specific symptoms as well as the absence of specific biochemical markers, makes early diagnosis difficult. Besides (magnetic resonance) arteriography, new promising diagnostic tools are discussed, including transoesophageat echocardiography (TEE) and Positron Emission Tomography (PET). Nevertheless, a high index of suspicion remains the key to an early diagnosis, and hence a better prognosis, of TA.

MR imaging anatomy of the knee.

MRI of the knee joint is one of the most common and important clinical applications in most MRI units today. Thorough knowledge of the detailed anatomy is a prerequisite for the understanding of knee pathology. This article reviews the MR anatomy of menisci, the cruciate ligaments, the medial and lateral supporting structures, the extensor mechanism, synovial plicae around the joint and some pitfalls in the interpretation.

MR imaging of the shoulder: imaging techniques and anatomy.

Since the development of dedicated surface coils and the more widespread use of state-of-the-art arthrographic techniques, MR imaging of the shoulder has come to maturity. In this article the imaging techniques of conventional MR imaging and MR arthrography of the shoulder are reviewed. The complex anatomy, the many anatomic variations and diagnostic variants and pitfalls and discrimination of pathologic entities from normal findings are discussed. Familiarity with the normal anatomy is a prerequisite to achieve a high diagnostic accuracy in the detection of a variety of pathologic conditions of the shoulder joint.

MR arthrography of the rotator cuff and capsulolabral complex.

MR arthrography of the shoulder has reached maturity in recent years. As opposed to conventional MRI of the shoulder it is less prone to artefacts frequently leading to equivocal interpretation. The spectrum of pathology in which MR arthrography has significant advantages is reviewed, with emphasis on the rotator cuff and the capsulolabral complex.

Extraorbital inflammatory pseudotumor of the head and neck: CT and MR findings in three patients.

We review the clinical history and imaging (CT and/or MR) studies in three patients with histologically proved extraorbital inflammatory pseudotumor of the head and neck. The imaging findings in all three cases were nonspecific, mimicking a malignant tumor or granulomatous disease.

Meningoradiculitis due to borreliosis presenting as low back pain only.

We report a child with Borrelia burgdorferi meningoradiculitis. This entity, also known as Bannwarth syndrome, is rare and its presentation with low back pain only is even more unusual. The MRI findings can suggest the diagnosis.

First branchial complex anomalies: report of 3 cases.

Three cases of first branchial cleft anomalies are presented. The embryology and pathology of first branchial complex anomalies, their imaging characteristics and differential diagnosis are discussed.

Tongue necrosis as a complication of temporal arteritis: CT and angiographic findings.

We report the case of an 82-year-old woman with probable temporal arteritis complicated by extensive tongue necrosis. This severe complication was diagnosed on CT; angiography suggested the diagnosis of arteritis.