This is the third and last case of the musculoskeletal series. Check the first one and second one on this blog.
What do you see on the following images?
Osteoblastoma: Osteoblastoma is histologically similar to osteoid osteoma but they are larger (usually accepted more than 1 cm), often involving the posterior column
A 43-year-old man with inflammation and lower abdominal pain:
What do you see?
* Inflammatory wall thickening of the sigmoid colon.
* Multiple diverticula, but one enlarged with thickened enhancing wall (arrow).
* Surrounding haziness of the mesosigmoid fat.
* Peritoneal accentuation
Typical image of diverticulitis, in a typical location with typical presentation
Look for signs of perforation or abscess formation
Showing T1 + C images. What do you see?
Nodular thickening and enhancement of the pituitary stalk.
* Lymphocytic hypophysitis
* Tb
* Sarcoidosis
* Metastasis.
What do you see on this image?
There is a small lucency anterior to the vestibule, just lateral to the basal turn of the cochlea. Consistent with fenestral otosclerosis.
There are two types of otosclerosis:
1- Fenestral: is the most common type. It involves the bone anterior to the oval window and causes conductive hearing loss.
2- Retro-fenestral: involves the cochlear capsule and causes sensorineural hearing loss.
The two types can occur simultaneously.
