Osteoid Osteoma-Ulna

15 years old girl comes with pain along the extensor carpi ulnaris tendon ( ECU) with clinical diagnosis of extensor carpi ulnaris groove syndrome.

Case Submitted By-

1. DR.M.G.K.MURTHY, SR.CONSULTANT RADIOLOGIST
2. MR.ABDUL HAMID

Teaching Points

- ECU arises by two tendons one from lateral epicondyle and the other the mid 1/3rd of the posterior ulna and its inserts into the posterior base of the 5th metacarpal. ECU passes the groove on the medial side of the distal ulna and its covered by the annular ligament.

 

- CT shows small well defined, regular, subperiosteal, septated mixed density lesion with a hyperdense speck as the nidus with no soft tissue abnormality or joint abnormality with no significant periosteal response suggesting osteoid osteoma.

- Osteoid osteoma, and tenosynovitis along the ECU are difficult to differentiate on clinical grounds.

 

Glenoid Fracture- Teaching Points

Questions between Reporting doctor and Professor. Submitted by Dr MGK Murthy


What is this?
Answer- it is a fracture

Where?
Involves infraglenoid tubercle and axillary(lateral border)of scapula

What is the importance?
Triceps get origin from infraglenoid tubercle and teres muscles get attachment from the border

How is the joint ?
Gleno-humeral joint is maintained

What causes it?
Scapular neck fractures most frequently result from an anterior or posterior force applied to the shoulder. Glenoid rim fractures most often result from force transmitted along the humerus after a fall onto a flexed elbow. Stellate glenoid fractures usually follow a direct blow to the lateral shoulder

Types ?
Classification of glenoid cavity fractures: IA - Anterior rim fracture; IB - Posterior rim fracture; II - Fracture line through the glenoid fossa exiting at the lateral border of the scapula; III - Fracture line through the glenoid fossa exiting at the superior border of the scapula; IV - Fracture line through the glenoid fossa exiting at the medial border of the scapula; VA - Combination of types II and IV; VB - Combination of types III and IV; VC - Combination of types II, III, and IV; VI - Comminuted fracture

Which is this ?
It is possible type II

What next
MDCT with reconstructions

Radiology Blog-now four years old

Wishing all our readers of this blog a very happy and prosperous new year 2008. The concept of this blog is to provide and discuss radiology related information and has been doing so for last four years (since 2004). I welcome all our readers to actively participate by commenting on the cases and submitting their own radiology related experiences.

Our sister concern- Teleradiology Providers

Spinal Dermoid-MRI

A case of low back acke with right leg pain for 2 months. Radiology- T1 and Fat suppressed T2 weighted images.

Diagnosis-Spinal Dermoid Cyst

There is equal male and female preponderance. The most frequent site of these tumors begin in an extramedullary location; a few may lie in the substance of the cord itself. Complications of the cyst include secondary infection, particularly when associated witha dermal sinus. Rarely these lead to chemical meningitis from the cholesterol-laden keratin released in the subarachnoid space from a ruptured cyst leading to a foreign body type of reaction.

Case By Teleradiology Providers

Radiology Quiz-What is the Diagnosis?

This patient presented with complaints of vomitting and abdominal pain. Can you make the diagnosis on the basis of scout film and CT section.

Post your answers in the comments section. Case reported by emergency team of Teleradiology Providers

Answer--
Intussusception

Winner-
Dr. Eytan RAZ

Useful Radiology Teaching resource

Came across this very useful teaching resource from ACR known as Case in point. I suggest this link all radiology residents especially the ones who are about to appear for their examination. It is very easy to subscribe to the "case in point" via your email.

Link- ACR Case in Point