his ppt is tailored for students preparing for the 3rd-year final examination in BSc Radiology and Imaging Technology at the University of Dhaka. 📈 Visual Learning 🖼️ Explore image examples from radiopaedia.org to grasp these diseases visually. 🧠 Ace your exams with understanding, not just memorization!.

1. Understanding Osteochondritis
and Related Diseases
MD. MOSTAK AHMED
B.Sc. RIT(4th Year)
DMT(Radiology & Imaging)

2. Introduction: Based on the syllabus topics of
Course-303 Sub: Radiological Findings (Part-I)
Program: BSc in Radiology and imaging Technology
Institution: IHT Mohakhali, Dhaka
Faculty of medicine, University of Dhaka
©Dr. Mustaque Ahmed Jalali, HOD(Radiology) NICRH. Adjunct Faculty, IHT Dhaka
University Exam Questions:
What is osteochondritis? Name five diseases due to osteochondritis. (DU January 2016)
What is osteochondritis? Name six diseases due to osteochondritis with their sites.(DU January
2019, 2021)

3. What is
Osteochondritis?
Osteochondritis (Osteochondrosis):
Inflammation of a bone along with its
cartilage

4. Osteochondritis
Overview
Osteochondritis is a disease of epiphyses,
beginning as necrosis and followed by
healing

5. Misnomer -
No
Inflammation
The term 'osteochondritis'
is a misnomer, as:
(i) there is no
inflammation; and
(ii) Cartilage is not
primarily involved

6. Causes of
Osteochondritis
Osteochondritis are now
regarded as being due to
impaired blood supply associated
with repeated trauma
Case courtesy of Frank Gaillard, Radiopaedia.org, rID: 35889

7. Diseases Due
to
Osteochondriti
s
Common locations for ischemic
necrosis & their eponyms
Perthe's disease
(Legg-Calvé-
Perthes disease) -
Idiopathic avascular
necrosis of
the femoral head in
children,
Chandler disease
avascular necrosis
of the femoral head
in adult.
Freiberg's disease-
avascular necrosis
of the metatarsal
heads;
Kohler's disease-,
avascular necrosis
the navicular bone
of the foot;
Osgood-Schlatter-
avascular necrosis
of the tibial
tuberosity;
Kienböck's disease
avascular necrosis
of lunate bone in the
wrist.
Sever's disease -
avascular necrosis
affecting calcaneal
apophysis

8. Perthe's Disease
(Legg-Calvé-
Perthes Disease)
Perthe's disease - Idiopathic
avascular necrosis of the femoral
head in children
This Photo by Unknown author is licensed under CC BY-SA-NC.

9. Chandler
Disease
Chandler disease -
Avascular necrosis of the
femoral head in adults

10. Freiberg's
Disease
Freiberg's disease - Avascular
necrosis of the metatarsal heads.
Case courtesy of Hani Makky Al Salam, Radiopaedia.org, rID: 9296

11. Kohler's
Disease
Kohler's disease - Avascular necrosis of
the navicular bone of the foot
Case courtesy of Muhanad Jaff, Radiopaedia.org, rID: 21954

12. Osgood-Schlatter Disease
Osgood-Schlatter -
Avascular necrosis of the
tibial tuberosity.

13. Kienböck's
Disease
Kienböck's disease - Avascular
necrosis of the lunate bone in the
wrist.
Case courtesy of Roberto Schubert, Radiopaedia.org, rID: 14745

14. Sever's
Disease
Sever's disease - Avascular
necrosis affecting calcaneal
apophysis
Case courtesy of Subash Thapa, Radiopaedia.org, rID: 56845

15. Thank you
Md. Mostak Ahmed​
Medical Technologist (Radiology & Imaging)
Popular Diagnostic Center Ltd, Uttara Branch​
B.Sc. in RIT (4th Year), DMT (Radiology & Imaging)