Related Experiment Video
Updated: Jul 17, 2026

07:26
Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
Osteitis deformans (Paget's disease) in a Burmese python (Python molurus bivittatus)--a case report.
Rosario Preziosi1, Alessia Diana, Daniela Florio
1Department of Veterinary Public Health and Animal Pathology, Alma Mater Studiorum, Università di Bologna, Via Tolara di Sopra 50, I-40064 Ozzano Emilia (BO), Italy.
Veterinary Journal (London, England : 1997)
|January 16, 2007
Summary
Paget's disease of bone, or osteitis deformans, was diagnosed in a Burmese python. This chronic bone disorder caused spinal swelling and impaired movement in the reptile.
Area of Science:
- Veterinary Pathology
- Comparative Osteology
- Herpetology
Background:
- Osteitis deformans (Paget's disease of bone) is a chronic skeletal disorder in humans.
- It involves abnormal bone remodeling with increased resorption and disorganized new bone formation.
- This condition has not been widely reported in reptilian species.
Observation:
- Multifocal gross swellings were observed in the proximal vertebral spine of a Burmese python (Python molurus bivittatus).
- Clinical signs included anorexia, reduced mobility, and impaired predatory strike ability.
- Elevated serum alkaline phosphatase activity was detected.
Findings:
- Radiographic imaging showed irregular vertebral bone proliferation.
- CT scans revealed abnormal bone mineral density.
- Histopathology confirmed a disorganized mosaic pattern of woven and lamellar bone, characteristic of osteitis deformans.
Implications:
- This case report expands the known spectrum of osteitis deformans in non-human vertebrates.
- It highlights the importance of considering metabolic and skeletal diseases in reptiles presenting with spinal abnormalities.
- Further research may elucidate the prevalence and pathogenesis of Paget's disease in exotic animals.
Related Concept Videos
Bone Disorders
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Osteoclasts in Bone Remodeling
Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during bone...