Joint and soft-tissue ultrasound

When it may be recommended

The doctor may request it when tendinopathy, a tendon tear, bursitis, fluid in a joint or inflammation of its lining is suspected. In rheumatologic diseases, the findings may complement the examination and tests. Ultrasound of one area does not by itself establish the diagnosis of a disease that affects the whole body.

For example, shoulder pain may relate to the tendons, the bursa, the joint or the neck. A small tendon change does not prove that it is the only source of pain. Agreement between the complaint, the examination and the image helps avoid treating an incidental finding.

What the examination adds during movement

Guided movement may show how a tendon glides or how the relationship of structures changes during activity. Comparison with the other side may help, but differences between the two sides are not always disease. Say which movement reproduces the symptoms.

Doppler may give information about blood flow and inflammatory activity. The presence or absence of a signal is interpreted according to technique and context. It is not a test that, alone, distinguishes all forms of arthritis or determines the need for a particular treatment.

Masses and collections in soft tissues

Ultrasound may help distinguish a fluid-filled lesion from a solid mass, define its depth and examine its relationship to vessels or muscles. A ganglion cyst, a hematoma and another mass may have different treatments. Accurate naming requires assessment of all the data.

An unexplained mass that is growing should be investigated even if it does not hurt. If findings remain uncertain or concerning, an MRI or a specialist assessment may be recommended. Suspicion of a soft-tissue tumor requires careful planning of the biopsy; immediate removal without assessment is not always the right step.

How to prepare

Fasting is not usually required. Dress so that the area is easily exposed and bring previous images, tests and reports of interventions. Say if you have a prosthesis, a recent injury, an operation or treatment with anticoagulants, medicines that reduce blood clotting.

The examination may be done seated or lying down. The doctor places the probe over the area and may ask for gentle movements. Do not force a movement that causes severe pain. Diagnosis by ultrasound and a possible injection are different actions; the procedure requires its own indication and explanation.

Limitations and choosing another examination

Ultrasound does not penetrate the interior of bone and may have limitations for deep structures. For a suspected fracture, a lesion within the bone or a specific internal problem of a joint, another method may be needed. MRI and radiography answer different questions and do not automatically replace each other.

A normal ultrasound does not exclude every cause of pain. If the limitation continues or worsens, reassessment is needed. The conclusion should state what was seen, what remains unclear and whether a further step is recommended.

Frequently asked questions

Can ultrasound replace magnetic resonance imaging? Not always. Ultrasound is good for tendons, bursae, joint fluid and superficial masses, while MRI has an advantage for deep structures and the interior of the joint. The choice depends on the clinical question; the doctor clarifies when another method is needed.

Why am I asked to move the limb during the examination? Controlled movement shows how the tendon glides and how the relationship of structures changes during the action that causes the pain. Many problems are seen only in movement. Do not force a movement that causes severe pain; the doctor adapts the examination.

Can an injection be given in the same session? Diagnostic ultrasound and injection are different actions. An injection requires an indication, an explanation of the benefit and risks and your consent; it is given after clinical assessment. It is not done automatically as part of the examination.

Does ultrasound show whether I have arthritis? It may show fluid in a joint, thickening of the lining or inflammatory activity on Doppler, but it does not establish the diagnosis of arthritis on its own. A rheumatological diagnosis is based on the history, examination, tests and other examinations.

What is a ganglion cyst? It is a fluid-filled formation near a joint or tendon, often at the wrist. It is usually benign and may be followed when it causes no trouble. If it hurts, limits movement or grows, treatments are discussed. Ultrasound helps distinguish it from a solid mass.

When should a soft-tissue lump be a concern? Lumps that grow quickly, are hard, deep or larger than a few centimeters need assessment, even when they do not hurt. Ultrasound is the first step. Do not remove the lump before it has been characterized, because if it is a tumor the plan for removal must be made carefully.

When quick help is needed

A joint that is very hot, red and painful, especially with fever, requires urgent assessment for infection or another acute cause. After trauma, deformity, a cold limb or loss of sensation should not wait for an outpatient ultrasound.

Care at Tirana Polyclinic: We offer joint ultrasound and ultrasound assessment of soft tissues according to the problem. The result may be linked to the rheumatology or orthopedic consultation and to the physiotherapy plan. We also interpret imaging performed at other centers.