School ager with a bleeding diathesis with pain and swelling of the lower extremities

MRI of hemophilia with hemorrhage in the calfs — Axial T2 fat sat (above) and axial GRE (below) MRI of the lower extremities shows symmetric bilateral increased T2 signal and gradient echo blooming primarily in the superficial and posterior deep compartments bilaterally.

The diagnosis was hemophilia with hemorrhage in the calfs.

Teenager who fell on to their elbow

Radiograph of elbow fracture of the radial head — Lateral radiograph of the elbow (left) shows elevation of the anterior and posterior fat pads of the elbow. Oblique radiograph of the elbow (right) shows a lucent line through the radial head.

The diagnosis was elbow fracture of the radial head.

School ager with an abdominal wall mass after blunt trauma to the anterior abdominal wall

MRI of intramuscular hematoma associated with a lymphatic malformation of the anterior abdominal wall — Axial T1 without contrast (above), T2 (middle) and T2 with fat saturation (below) MRI of the abdomen shows an oval heterogenous fluid collection of layering mixed fluid intensities centered in the right anterior abdominal wall muscle and surrounded by muscle tissue.

The diagnosis was intramuscular hematoma associated with a lymphatic malformation of the anterior abdominal wall.

School ager who fell on an outstretched hand

Radiograph of elbow fracture of the proximal ulna — Lateral radiograph of the elbow shows elevation of the anterior fat pad. There are multiple parallel linear lucent lines through the proximal ulna.

The diagnosis was elbow fracture of the proximal ulna.

Infant with left hip pain

Radiograph of growth arrest lines — AP radiograph of the hip shows multiple transverse densely sclerotic lines in metaphyses of the proximal left femur. There are also multiple curved faintly sclerotic lines in the left iliac bone.

The diagnosis was growth arrest lines.

Teenager who fell on their elbow

Radiograph of elbow fracture of the olecranon — AP (left) and lateral (right) radiographs of the elbow show on the lateral radiograph elevation of the anterior fat pad and an irregular lucent line anterior to the ossification center of the olecranon of the ulna.

The diagnosis was elbow fracture of the olecranon.

School ager who kicked a tree while playing football and has a puncture wound in his calf.

Radiograph of a tree branch in the soft tissues of the leg — AP radiograph of the tibia and fibula shows a radiopaque fragment of a retained tree branch deep in the soft tissues of the calf with extensive subcutaneous emphysema along the wound tract.

The diagnosis was foreign body in the soft tissues in the form of a tree branch.

Preschooler with elbow pain after a fall

Radiograph of occult elbow fracture — Lateral radiograph of the elbow (right) shows elevation of the anterior and posterior fat pads due to a large elbow joint effusion. No definite fracture line is seen on the lateral radiograph or on the AP radiograph (left).

The diagnosis was ocult elbow fracture.

School ager with arm pain after fall on outstretched hand

Radiograph of polyostotic fibrous dysplasia — AP radiograph of the humerus (left) shows a lengthy ground glass lesion with a sclerotic rim centered in the metaphysis of the humerus. AP radiograph of the hand (right) shows multiple lucent lesions with sclerotic rims in the capitate and hamate and in the proximal fourth and fifth metacarpal bones.

The diagnosis was polyostotic fibrous dysplasia.

School ager with elbow pain after falling on outstretched hand

Radiology of elbow fracture of the medial epicondyle — AP radiograph of the elbow shows displacement, rotation, and fragmentation of the medial epicondyle.

The diagnosis was elbow fracture of the medial epicondyle of the elbow.

School ager with an abdominal mass

MRI of fibrosarcoma of the abdomen — Coronal (above left) T2 MRI of the abdomen shows a right-sided heterogenous and hyperintense oval shaped suprarenal retroperitoneal mass that on sagittal T2 MRI (above right) is anterior to the spine (which has an incidental segmentation anomaly at T10-T12) and which on axial T2 MRI (below left) is seen to cross the midline in close proximity to the inferior vena cava and aorta. On axial T1 MRI with contrast (below right) the mass shows some enhancement. Other imaging (not provided) revealed invasion of the inferior vena cava by the mass and lung metastases.

The diagnosis was fibrosarcoma of the abdomen.

Preschooler with elbow pain who fell on their outstretched hand

Radiograph of elbow fracture of lateral epicondyle — AP radiograph of the elbow (left) shows a fracture line through the lateral epicondyle. Lateral radiograph (right) shows elevation of the anterior and posterior fat pads due to a large elbow joint effusion.

The diagnosis was elbow fracture of the lateral epicondyle.

School ager with beta thalassemia

MRI of extramedullary hematopoesis of the spleen — Coronal T2 MRI of the abdomen (above) shows multiple round high signal intensity lesions in the spleen. Axial T1 MRI with contrast (below) shows the splenic lesions to enhance avidly and homogenously

The diagnosis was extramedullary hematopoesis in the spleen.

Toddler with elbow pain after a fall

Radiograph of lateral epicondyle elbow fracture — AP radiograph of the elbow (left) shows a fracture line through the lateral epicondyle. Lateral radiograph (right) shows elevation of the anterior and posterior fat pads due to a large elbow joint effusion.

The diagnosis was elbow fracture of the lateral epicondyle of the elbow.

Teenager post trauma

Radiograph of pediatric posterior dislocation of the elbow — AP (left) and lateral (right) radiographs of the elbow show posterior dislocation of the radius and ulna. There was a very small bone fragment superior to the coronoid process of the ulna on the lateral view which is seen between the radius and ulna on the AP view.

The diagnosis was posterior dislocation of the elbow with an associated fracture of the coronoid process of the ulna.

School ager who is having their bone age checked

Radiograph of pediatric lunotriquetral coalition — AP radiograph of the hand shows fusion of the lunate and triquetrum carpal bones.

The diagnosis was lunotriquetral carpal coalition.

School ager who fell on an outstretched hand and has elbow pain

Radiograph of pediatric elbow fracture of coronoid process of ulna — Lateral radiograph of the elbow shows elevation of the anterior and posterior fat pads of the elbow. There is a very small bone fragment just superior to the coronoid process of the ulna.

The diagnosis was elbow fracture of the coronoid process.

Teenager with right lower extremity swelling

MRI of pediatric cellulitis of the lower extremity — Two non-contiguous axial T2 MRI images of the right lower extremity show diffuse circumferential high T2 signal in the subcutaneous tissues and along the deep fascial plane. There were no abscesses seen.

The diagnosis was cellulitis of the lower extremity.

School ager who fell on an outstretched hand and now has elbow pain

Radiograph of pediatric capitellum fracture of the elbow — AP (left), oblique (middle) and lateral (right) radiographs of the elbow show a fracture line through the capitellum which is displaced anteriorly and superiorly along the humerus which is best shown on the lateral radiograph, which also shows elevation of the anterior and posterior fat pads of the elbow.

The diagnosis was elbow fracture of the capitellum.

Teenager with a soft tissue mass between the first and second digits of the hand

Radiograph and US of venous malformation of the hand — AP radiograph of the hand (above) shows a large round laminated appearing calcified lesion between the first and second digits of the hand. Transverse US of the area of calcification (below) shows two laminated appearing clots of varying age.

The diagnosis was vascular malformation of the hand in the form of a venous malformation containing a phlebolith.

Preschooler with elbow pain after being tackled

Radiograph of ossification centers of the elbow ossifying out of their normal order — AP (left) and lateral (right) radiographs of the elbow show ossification of the capitellum and internal (medial) epicondyle. The radial head is not yet ossified. No fracture or fat pad elevation is seen.

The diagnosis was no fracture of the elbow as the ossification centers of the elbow are ossifying out of their normal order as normally the radial head should ossify before the internal (medial) epicondyle according to the CRITOE mneumonic.

School ager who fell from the monkey bars and has wrist pain

Radiograph of Colles fracture — AP radiograph of the wrist (left) shows an extra-articular fracture of the distal radial metaphyseal region while the lateral (right) shows dorsal angulation and impaction of the distal fracture fragment without the involvement of the articular surface.

The diagnosis was Colles fracture.

Toddler with an unusual appearing hand

Radiograph of symbrachydactyly — AP (left) and lateral (right) radiographs of the forearm and hand shows an absence of all the bones in the hand. There are nubbins of soft tissue where the phalanges should be. The radius and ulna are bowed.

The diagnosis was symbrachydactyly.

Teenager with shoulder pain after an all terrain vehicle accident

Radiograph of clavicle fracture — AP radiographs of the clavicle show a comminuted and angulated fracture of the mid clavicle.

The diagnosis was clavicle fracture.

Teenager with joint pain

Hand radiograph of scleroderma — AP radiograph of the hand shows acroosteolysis of the second and third distal phalanges and faint soft tissue calcifications at the tips of the first, second and third distal phalanges.

The diagnosis was scleroderma.