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[Multiple myeloma in a patient with primary hyperparathyroidism]
Y Katayama1, H Matsuda, Y Katoh
1Department of Urology, Kinki University School of Medicine.
Hinyokika Kiyo. Acta Urologica Japonica
|August 1, 1989
Summary
Severe hypercalcemia and renal failure initially suggested hyperparathyroidism in a 50-year-old man. However, multiple myeloma was ultimately diagnosed after initial treatment failed, highlighting the importance of considering diverse diagnoses.
Area of Science:
- Nephrology
- Endocrinology
- Oncology
Background:
- Hypercalcemia and renal failure are critical conditions requiring accurate diagnosis.
- Parathyroid disorders can mimic other systemic diseases.
Observation:
- A 50-year-old male presented with knee pain, fatigue, severe hypercalcemia, and renal failure.
- Initial suspicion of hyperparathyroidism based on elevated calcium and thyroid nodule was investigated surgically.
- Post-operative normocalcemia was transient, with recurrence of hypercalcemia and renal failure.
Findings:
- Surgical exploration revealed enlarged parathyroid glands, but treatment was ineffective.
- Kidney biopsy suggested myeloma, subsequently confirmed by bone marrow biopsy.
- The final diagnosis was multiple myeloma, not primary hyperparathyroidism.
Implications:
- This case underscores the diagnostic challenges in differentiating hypercalcemia causes.
- It highlights the necessity of comprehensive evaluation when initial treatments fail.
- Accurate diagnosis of multiple myeloma is crucial for appropriate oncological management.