Sternum AP/LAT/Oblique at Dr. Essa Lab

Sternum AP/LAT/Oblique at Dr. Essa Lab

The Sternum AP/LAT/Oblique imaging protocol at Dr. Essa Lab is a highly specialized, non-invasive diagnostic X-ray examination designed to evaluate the breastbone (sternum) and its associated joints. The sternum is a flat, T-shaped bone situated centrally in the anterior chest wall, playing a critical role in protecting the heart, lungs, and major thoracic blood vessels. It consists of three distinct anatomical segments: the superior manubrium sterni, the middle body (gladiolus), and the inferior xiphoid process. Because a standard posteroanterior (PA) chest X-ray superimposes the dense thoracic spine directly behind the sternum, visualizing sternal pathology requires a dedicated radiographic series. Dr. Essa Lab utilizes state-of-the-art digital radiography (DR) systems across its branches in Karachi, Pakistan, to perform this complex three-view series, ensuring optimal image contrast, minimal radiation exposure, and highly detailed anatomical resolution.

The three-view series—comprising the Anteroposterior (AP) or Posteroanterior (PA), Lateral (LAT), and Oblique projections—provides a comprehensive, multi-planar assessment of the sternal bone cortex, joint spaces, and surrounding soft tissues. The oblique view, often performed as a Right Anterior Oblique (RAO) projection, is clinically invaluable. By rotating the patient slightly, the radiographer projects the sternum away from the spine and over the homogenous density of the heart shadow, which acts as a natural contrast medium to highlight subtle fractures or bone lesions. The lateral view is essential for detecting anterior or posterior displacement of bone fragments, which is common in traumatic injuries, and for assessing the retrosternal space. This diagnostic examination is crucial for patients presenting with localized chest wall trauma, unexplained sternal pain, suspected post-surgical complications, or inflammatory joint disorders.

Clinical Procedure: What to Expect

Patient Preparation

Preparing for a Sternum AP/LAT/Oblique X-ray at Dr. Essa Lab is straightforward and requires minimal effort. To ensure the highest quality images and prevent artifacts, patients should follow these guidelines:

• No Fasting Required: Patients can eat, drink, and take their regular medications normally before the procedure.
• Clothing: It is recommended to wear loose, comfortable clothing. You may be asked to change into a clean patient gown to prevent clothing patterns or thick seams from interfering with the X-ray.
• Remove Metal Objects: All metal objects, including necklaces, body piercings, bras with underwires, and clothing with metal zippers or buttons, must be removed from the chest area as metal blocks X-rays and obscures anatomical details.
• Pregnancy Notification: Female patients must inform the radiographer or doctor if they are pregnant or suspect they might be. Although the radiation dose is extremely low, protective measures like lead shielding will be implemented, or alternative imaging may be considered to protect the developing fetus.

During the Procedure

The entire imaging session typically takes between 10 to 15 minutes. The procedure is conducted by a certified radiologic technologist and involves the following steps:

• Positioning: The technologist will guide you through three distinct positions. For the Oblique (RAO) view, you will stand or lie prone, rotated approximately 15 to 20 degrees. For the Lateral view, you will stand or lie on your side with your arms drawn back and chest puffed out. For the AP/PA view, you will face the imaging detector directly.
• Breathing Instructions: You will be asked to remain completely still. For some views, the technologist may use a “breathing technique” where you take shallow breaths during a slow exposure to blur out the overlying lung markings, or you may be asked to hold your breath for a few seconds to prevent motion blur.
• Equipment: A modern digital X-ray tube will be positioned at a specific distance, and a collimator light will outline the sternal region to target the radiation precisely.
• Comfort and Safety: The procedure is entirely painless. You will only hear the clicking sounds of the X-ray machine. Lead aprons may be provided to shield other parts of your body from scatter radiation.

When is a Sternum AP/LAT/Oblique Performed?

Sternal Trauma and Suspected Fractures

Physicians frequently order this specialized X-ray series following blunt force trauma to the anterior chest wall, such as injuries sustained from steering wheel impacts in motor vehicle accidents, sports injuries, or severe falls. Patients with sternal fractures typically present with intense, localized pain, bruising, and tenderness over the breastbone. The AP, lateral, and oblique views allow the radiologist to confirm the presence of a fracture, determine if the bone fragments are displaced, and evaluate the risk of retrosternal soft tissue injury.

Post-Surgical Evaluation of Sternal Dehiscence

Patients who have undergone cardiothoracic surgeries, such as a coronary artery bypass graft (CABG) or valve replacement, require a median sternotomy to access the heart. The sternum is subsequently closed using surgical steel wires. If a patient experiences chest instability, clicking sensations, or localized pain post-operatively, a Sternum AP/LAT/Oblique X-ray is performed to evaluate sternal healing, check the integrity of the surgical wires, and rule out sternal dehiscence (separation of the closed bone halves).

Unexplained Chest Wall Pain and Costochondritis

Chronic or acute anterior chest pain can stem from various musculoskeletal conditions. While costochondritis (inflammation of the cartilage connecting the ribs to the sternum) is a common clinical diagnosis, a sternal X-ray series is often requested to rule out underlying bony pathologies, such as stress fractures, erosive joint diseases, or primary bone lesions, ensuring that the patient receives an accurate diagnosis and targeted treatment plan.

Suspected Sternal Osteomyelitis and Infections

Sternal osteomyelitis is a serious bacterial infection of the bone that can occur as a complication of thoracic surgery, trauma, or hematogenous spread from another infection site. Patients may experience localized swelling, redness, warmth, and purulent discharge. The Sternum AP/LAT/Oblique views help identify early radiographic signs of infection, such as cortical bone erosion, periosteal reaction, or localized osteopenia, facilitating prompt medical or surgical intervention.

Evaluation of Sternal Tumors and Metastatic Lesions

Primary tumors of the sternum are rare, but the breastbone is a potential site for metastatic disease from primary cancers of the breast, lung, prostate, or thyroid, as well as hematological malignancies like multiple myeloma. Physicians request this detailed imaging series when patients present with unexplained bone pain or palpable chest wall masses. The X-ray helps detect osteolytic (bone-destroying) or osteoblastic (bone-forming) lesions within the sternal segments.

What Does a Sternum AP/LAT/Oblique Detect?

A Sternum AP/LAT/Oblique X-ray is highly sensitive in detecting a wide range of structural, traumatic, inflammatory, and neoplastic conditions affecting the anterior chest wall. Specifically, this imaging series can detect:

• Sternal body fractures resulting from direct trauma.
• Manubrial fractures, often associated with high-energy deceleration injuries.
• Xiphoid process fractures or painful angulations.
• Sternal displacement, where fractured bone ends shift out of normal alignment.
• Sternoclavicular joint dislocation or subluxation.
• Sternocostal joint subluxation or inflammatory changes.
• Sternal dehiscence, indicating a failure of the sternum to fuse post-sternotomy.
• Broken, displaced, or migrating surgical sternal wires.
• Sternal osteomyelitis (bone infection) characterized by localized bone destruction.
• Osteolytic lesions, which appear as dark, hollowed-out areas indicating bone loss.
• Osteoblastic lesions, appearing as dense, white areas of abnormal bone growth.
• Cortical bone erosion caused by adjacent soft tissue masses or chronic inflammation.
• Retrosternal hematoma, suggested by an increased soft tissue density behind the bone.
• Retrosternal abscess formation in post-operative patients.
• Pectus excavatum (congenital depression of the sternum) and its anatomical severity.
• Pectus carinatum (congenital protrusion of the sternum).
• Advanced degenerative arthritis (osteoarthritis) of the sternoclavicular joints.
• Rheumatoid arthritis or ankylosing spondylitis manifestations in the sternal joints.
• Sternal nonunion, where the bone fails to heal after a fracture or surgery.
• Calcification of the costal cartilages, which can mimic or complicate clinical findings.
• Congenital sternal clefts or incomplete fusion anomalies.
• Foreign bodies embedded within the anterior chest wall or retrosternal space.

Turnaround Time and Report Access at Dr. Essa Lab

At Dr. Essa Lab, we understand that timely diagnostic results are crucial for effective clinical decision-making and patient peace of mind. Once your Sternum AP/LAT/Oblique X-ray is completed, the digital images are instantly transferred to our advanced Picture Archiving and Communication System (PACS). A highly qualified consultant radiologist will carefully review the three views, correlating the radiographic findings with your clinical history.

The official, signed diagnostic report is typically compiled and verified within a few hours of the procedure. Patients can conveniently access their reports and high-resolution digital images online through the secure Dr. Essa Lab web portal or mobile application. Additionally, an SMS notification is sent to the patient as soon as the report is ready for download. Physical copies of the report and X-ray films can also be collected directly from the diagnostic center where the test was performed.

Sternum AP/LAT/Oblique Findings Overview

Structure / Parameter Evaluated	Normal Findings	Possible Abnormal Findings
Sternal Body	Intact cortex, uniform bone density, and smooth margins.	Fracture lines, cortical disruption, osteolytic or osteoblastic lesions.
Manubrium Sterni	Smooth borders, normal articulation with clavicles and first ribs.	Transverse fractures, erosive changes, or metastatic destruction.
Xiphoid Process	Normal anatomical position, age-appropriate ossification.	Fracture, painful anterior/posterior displacement, or abnormal angulation.
Sternoclavicular Joints	Symmetric joint spaces, proper alignment without subluxation.	Dislocation, joint space narrowing, osteophytes, or subchondral sclerosis.
Sternal Alignment	Straight, continuous anterior chest wall profile.	Sternal dehiscence, step-off deformities, or post-traumatic displacement.
Retrosternal Space	Clear radiolucent space behind the posterior sternal cortex.	Increased soft tissue density, indicating retrosternal hematoma or abscess.
Surgical Wires (if present)	Intact, symmetrically aligned, and securing the sternal halves.	Broken wires, wire migration, or separation of the sternal halves.
Overlying Soft Tissues	Uniform thickness, normal density, no subcutaneous air.	Soft tissue swelling, subcutaneous emphysema, or foreign bodies.

Note: Diagnostic findings should always be interpreted by a qualified healthcare professional together with the patient’s symptoms, medical history, physical examination, laboratory investigations, previous imaging studies, and other relevant clinical information. Additional investigations or specialist consultation may be recommended depending on the findings.

Why Choose Dr. Essa Lab for Sternum AP/LAT/Oblique?

• Experienced Healthcare Professionals: Our team consists of highly qualified radiologic technologists and consultant radiologists dedicated to diagnostic excellence.
• Patient-Focused Care: We prioritize patient comfort, safety, and clear communication throughout the entire imaging process.
• Quality Diagnostic Services: Dr. Essa Lab is committed to maintaining the highest international standards of diagnostic accuracy and quality control.
• Professional Reporting: Detailed, precise, and timely reports authored by experienced radiologists to guide your clinical management.
• Modern Diagnostic Approach: We utilize advanced digital radiography systems that deliver high-resolution images with lower radiation doses.
• Comfortable Environment: Our diagnostic centers are designed to provide a clean, safe, and welcoming atmosphere for all patients.
• Convenient Locations: With an extensive network of branches across Karachi, Pakistan, accessing premium diagnostic care is always convenient.
• Commitment to Accurate Diagnosis: Serving the community since 1987, we are a trusted name in healthcare, ensuring reliable results for every patient.