Arachnoid cyst

Incidental arachnoid cyst, unusual location though.

Neurofibromatosis type 2

 

 

Left acoustic neuroma and multiple meningiomas

Pistol grip deformity

A very good example of bilateral pistol grip deformity of femoroacetabular impingement.

 

Osteochondral injury

Lateral knee radiograph showing a large osseous loose body in the suprapatellar pouch. AP view shows a similar sized osteochondral defect in the lateral femoral condyle.

Sacroilitis

Asymmetric sacroilitis in ankylosing spondylosis

Scaphoid fracture

Scaphoid views 10 days following injury also failed to show the fracture. Digital tomosynthesis (volumerad) shows fracture line clearly.

Ankylosing spondylosis

Fused SIJs and dagger sign on AP view of the abdomen.

Transitional cell carcinoma of renal pelvis

Right renal ppelvis transitional cell carcinoma

Staghorn calculus

Pelvic radiohraph for trauma. No history of contrast examination in past. Incidental asymptomatic staghorn calculus.

Lisfranc's fracture dislocation

Plain film showing Lisfran'c dislocation:

See the lines not aligned as shown in this image:

CT shows fractures of bases of 2nd, 3rd, and 4th metatarsals:

ICA aneurysm

ICA gaint aneurysm, presented with acute headache, diplopia, and reduced sensation of face

Long transverse process of L5

Long L5 transverse process with pseudoarticulation

Advanced chondrocalcinosis

Advanced chondrocalcinosis with osteoarthritis

Osteochondroma

This is the smallest osteochondroma I have seen so far. It was in the tibia.

Sacral metastasis

Lateral sacral view showing subtle loss of definition of posterior vertebral line:

For comparison, I have put a normal radiograph showing crisp posterior margin of the sacral body:

Sagittal T1 MRI, showing the metastases.

Sacral metastases causing cauda equina

Sagittal T1, T2 and STIR, and axial T1 and T2

MR artefact

What kind of artefact is it?

Multiple myeloma with pathological fracture

Plain film:

Magnified image showing myeloma deposits:

AP view showing periosteal reaction possibly secondary to periosteal reaction:

MR showing the same findings:

 

Liver Abscess

Venous phase CT:

Delayed Phase CT:

Ultrasound reduces the differentials and points to the diagnosis of abscess:

Hyperostosis Frontalis Interna

Incidental hyperostosis frontalis interna

Fracture scaphoid

Plain film: no fracture

CT: 10 mm reconstruction - no fracture seen

CT: Oblique sagittal reconsturction of 0.6mm shows undisplaced fracture