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Diagnosis of a pati...
Diagnosis of a patient with oncogenic osteomalacia using a phosphate uptake bioassay of serum and magnetic resonance imaging
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Nelson, A E (author)
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Mason, R S (author)
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Robinson, B G (author)
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Hogan, J J (author)
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Martin, E A (author)
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- Ahlström, Håkan (author)
- Uppsala universitet,Enheten för radiologi
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- Åström, Gunnar (author)
- Uppsala universitet,Enheten för radiologi
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Larsson, T (author)
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Jonsson, K (author)
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Wibell, L (author)
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Ljunggren, O (author)
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(creator_code:org_t)
- Oxford University Press (OUP), 2001
- 2001
- English.
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In: European Journal of Endocrinology. - : Oxford University Press (OUP). - 0804-4643 .- 1479-683X. ; 145:4, s. 469-476
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- A previously healthy man with no family history of fractures presented with muscle pain, back pain and height loss. Investigations revealed hypophosphataemia, phosphaturia, undetectable serum 1,25-dihydroxyvitamin D and severe osteomalacia on bone biopsy, suggestive of a diagnosis of oncogenic osteomalacia. Thorough physical examination did not locate a tumour. Support for the diagnosis was obtained by detection of phosphate uptake inhibitory activity in a blinded sample of the patient's serum using a renal cell bioassay. On the basis of detection of this bioactivity, a total body magnetic resonance (MR) examination was performed. A small tumour was located in the right leg. Removal of the tumour resulted in the rapid reversal of symptoms and the abnormal biochemistry typical of oncogenic osteomalacia. Inhibitory activity was also demonstrated using the bioassay in serum from two other patients with confirmed or presumptive oncogenic osteomalacia, but not in serum from two patients with hypophosphataemia of other origin. This is the first case to be reported in which the diagnosis of oncogenic osteomalacia was assisted by demonstration of inhibitory activity of the patient's serum in a renal cell phosphate bioassay that provided an impetus for total body MR imaging.
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- art (subject category)
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- By the author/editor
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Nelson, A E
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Mason, R S
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Robinson, B G
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Hogan, J J
-
Martin, E A
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Ahlström, Håkan
-
show more...
-
Åström, Gunnar
-
Larsson, T
-
Jonsson, K
-
Wibell, L
-
Ljunggren, O
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show less...
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European Journal ...
- By the university
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Uppsala University