High dose calcitriol in osteopetrorickets.

Area of Science:

• Pediatrics
• Genetics
• Biochemistry

Background:

• Osteopetrorickets is a rare autosomal recessive disorder impacting osteoclast function.
• It leads to abnormally dense bones and impaired resorption of calcified cartilage.
• Rickets arises paradoxically from impaired osteoclast function affecting calcium-phosphorus balance.

Observation:

• A case of infantile osteopetrorickets presented with anterior fontanel bulging.
• The patient exhibited symptoms consistent with this rare genetic disorder.

Findings:

• The study details an unusual case of infantile osteopetrorickets.
• Successful treatment was achieved using haploidentical bone marrow transplantation.

Implications:

• Bone marrow transplantation offers a potential therapeutic strategy for osteopetrorickets.
• This case highlights the importance of early diagnosis and intervention for rare bone disorders.
• Further research into osteoclast function and calcium-phosphorus regulation is warranted.