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Simultaneous AL‐type amyloid and light chain deposit disease in a liver biopsy: a case report
Author(s) -
SMITH N.M.,
MALCOLM A.J.
Publication year - 1986
Publication title -
histopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.626
H-Index - 124
eISSN - 1365-2559
pISSN - 0309-0167
DOI - 10.1111/j.1365-2559.1986.tb02542.x
Subject(s) - pathology , amyloid (mycology) , immunoglobulin light chain , biopsy , immunohistochemistry , periodic acid–schiff stain , liver biopsy , congo red , medicine , electron microscope , chemistry , physics , organic chemistry , adsorption , antibody , optics , immunology
A 57‐year‐old male caucasian presented with a peripheral neuropathy which had an autonomic component. Clinical examination revealed hepatomegaly and laboratory tests showed derangement of liver function tests and IgG lambda myeloma. Biopsy of the liver was performed. Histological examination revealed AL‐type amyloid in the hepatic arteries and a perisinusoidal deposit of diastase resistant, periodic acid‐Schiff positive material which did not react in the same way as the arterial deposit, giving no apple green birefringence when stained with Congo red. Immunohistochemistry showed the material to consist of lambda light chains. Electron microscopy confirmed that the material did not have the ultrastractural characteristics of amyloid. A diagnosis of light chain deposit disease concurrent with vascular AL‐type amyloid was made.