An autopsy case of hairy cell leukemia was reported.
In 1978, a 35-year-old woman was admitted to Tokyo University Hospital because of headache, anemia and splenomegaly.
The white-cell count was 6,400/mm
3 and 84 per cent was large atipical lymphocytes with 1-tartrate resistant acid phosphatase (+) and hairy appearance examined by phase-contrast microscope and scanning electromicroscope. A diagnosis of hairy cell leukemia was made and splenectomy was performed.
After the operation, anemia and thrombocytopenia were improved, but the white-cell count increased.
In January, 1980, lumbago developed, followed by dyspnea at night. She admitted to our hospital in July, 1980.
The white-cell count elevated to 28,500/mm
3. The BUN was 61mg/d
l, Cr 5.3mg/d
l, Ca 10.2mg/d
l and urine protein 10 to 12g/day. Abdominal CT scan revealed marked swelling of bilateral kidneys. Bone-Xp was negative, but
99mTc bone scanning showed abnormal radioisotope uptake in the thoracic and lumbar vertebrae.
Daunorubicin and vincristine were administered and the level of BUN and Cr was decreased.
60Co irradiation to the lumbar lesion was performed with no effect.
In October, 1980, she expired because of mycotic sepsis and massive bleeding.
Autopsy revealed the leukemic cell infiltration to varied organs including kidneys and sternal and spinal bone.
Bone infiltration in hairy cell leukemia is very rare. Only 12 cases were reported in the literature. The pattern of infiltration to bone was reviewed and that of this case was discussed.
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