Linked Life Data

20438489

Source:http://linkedlifedata.com/resource/pubmed/id/20438489

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2010-5-4
pubmed:abstractText
60 year-old man, without relevant medical history, noted a slight and progressive instability of gait for one month and right hand clumsiness. Brain MRI showed a cerebellar lesion, posterior to the middle cerebellar peduncle. This lesion was heterogeneous and hyperintense on FLAIR sequences, isointense on T1-weighted images, and showed gadolinium enhancement. Hematological and biological serum analyses were normal as were plasma and urine immunoelectrophoresis. CSF analysis including protein electrophoresis was unremarkable. CT scans of the abdomen, chest and pelvis were normal as were cervical echography and bone scintigraphy. A yellowish and firm lesion was surgically resected. The patient's recovery was good, with normal total body PET scan and bone marrow biopsy. Pathological study evidenced kappa light chain deposits and kappa-immunopositive mature plasma-cells in the vicinity. The deposits failed to show any birefringence in polarized light microscopy after Congo red staining, and electron microscopy revealed their granular ultrastructure. Light chains are well known for their amyloidogenic properties, but in a few cases, they are non amyloidogenic and may cause tissue deposits histologically similar to amyloid but Congo red-negative and non fibrillary at ultrastructural examination. Occurrence of light chain deposits in the brain is rare and the tumor-like MRI presentation is reminiscent of primary intracerebral amyloidoma presenting as a mass lesion. This is the first report of intracerebral kappa light chain deposits which presumably derived from local synthesis by mature plasma cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1750-3639
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
273-4
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
A 61-year-old man with instability of gait and right hand clumsiness.
pubmed:publicationType
Letter, Case Reports