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Bone densitometry and histomorphometry in patients with hairy cell leukemia
J Demeter1, H J Grotes, C Horváth
1Semmelweis University Medical School, First Department of Medicine, Budapest, Hungary.
Leukemia & Lymphoma
|January 1, 1994
Summary
Hairy cell leukemia (HCL) is linked to significant bone abnormalities, including reduced bone volume and poor trabecular connectivity. Bone pain can precede HCL diagnosis, indicating early skeletal involvement.
Area of Science:
- Hematology
- Oncology
- Bone Biology
Background:
- Tumor necrosis factor alpha (TNF-α), a cytokine involved in Hairy Cell Leukemia (HCL) growth, exhibits potent bone-resorbing properties.
- This study investigated potential bone involvement in HCL patients.
Observation:
- Bone mineral density (BMD) was normal in HCL patients without radiographic bone destruction.
- Osteopenia was observed in two patients with skeletal complications and preceding bone pain.
- Lymphomatous infiltration and femoral head necrosis were noted in specific cases.
Findings:
- Histomorphometry revealed reduced trabecular bone volume in 11 of 12 untreated male HCL patients.
- A poorly connected trabecular lattice was indicated by an increased trabecular bone pattern factor in 8 patients.
- Osteosclerosis was an infrequent finding, observed in only one patient.
Implications:
- Hairy cell leukemia can manifest with significant bone abnormalities, impacting skeletal integrity.
- Early detection of bone pain may be crucial for identifying HCL-related skeletal complications.
- Further research into the mechanisms of HCL-induced bone loss is warranted.