{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T14:05:48Z","timestamp":1787061948497,"version":"build-2736575974"},"reference-count":22,"publisher":"Scientific Scholar","content-domain":{"domain":["surgicalneurologyint.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"\n Background:<\/jats:title>\n Amyloidosis is a protein misfolding disorder that leads to the deposition of beta-pleated sheets of a fibrillar derivative of various protein precursors. Identification of the type of precursor protein is integral in treatment decision-making. The presence of two different types of amyloid in the same patient is unusually rare, and there are no previous reports of two different types of amyloid deposition in the ligamentum flavum (LF) in the same patient.<\/jats:p>\n <\/jats:sec>\n \n Case Description:<\/jats:title>\n Here, we describe two patients with spinal stenosis who underwent laminectomies and were found to have AL and ATTR amyloid deposits in the LF.<\/jats:p>\n <\/jats:sec>\n \n Conclusion:<\/jats:title>\n As the spine is becoming recognized as a site for ATTRwt amyloid deposition, patients undergoing spinal decompression surgery may potentially benefit from evaluation for amyloidosis in the LF.<\/jats:p>\n <\/jats:sec>","DOI":"10.25259\/sni_1235_2021","type":"journal-article","created":{"date-parts":[[2022,1,12]],"date-time":"2022-01-12T04:06:26Z","timestamp":1641960386000},"page":"12","update-policy":"https:\/\/doi.org\/10.25259\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Unraveling a rare cause of spinal stenosis: Coexistent AL and ATTR amyloidosis involving the ligamentum flavum"],"prefix":"10.25259","volume":"13","author":[{"given":"Amandeep","family":"Godara","sequence":"first","affiliation":[{"name":"Department of Hematology and Hematologic Malignancies, University of Utah, Salt Lake, Utah,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andy Y.","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Tufts Medical Center, Washington, Boston, United States."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Knarik","family":"Arkun","sequence":"additional","affiliation":[{"name":"Department of Pathology and Laboratory Medicine, Tufts Medical Center, Washington, Boston, United States."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Teresa","family":"Fogaren","sequence":"additional","affiliation":[{"name":"Department of John Conant Davis Myeloma and Amyloid Program, Tufts Medical Center, Washington, Boston, United States."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adnan S.","family":"Qamar","sequence":"additional","affiliation":[{"name":"Department of Pathology and Laboratory Medicine, Tufts Medical Center, Washington, Boston, United States."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ellen D.","family":"McPhail","sequence":"additional","affiliation":[{"name":"Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, New York, United States."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James","family":"Kryzanski","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Tufts Medical Center, Washington, Boston, United States."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ron","family":"Riesenburger","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Tufts Medical Center, Washington, Boston, United States."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Raymond","family":"Comenzo","sequence":"additional","affiliation":[{"name":"Department of John Conant Davis Myeloma and Amyloid Program, Tufts Medical Center, Washington, Boston, United States."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"10894","published-online":{"date-parts":[[2022,1,12]]},"reference":[{"key":"10.25259\/SNI_1235_2021\/ref-1","doi-asserted-by":"crossref","first-page":"1324","DOI":"10.1007\/s00392-019-01467-1","article-title":"Carpal tunnel syndrome and spinal canal stenosis: Harbingers of transthyretin amyloid cardiomyopathy?","volume":"108","author":"Aus dem Siepen","year":"2019","journal-title":"Clin Res Cardiol"},{"key":"10.25259\/SNI_1235_2021\/ref-2","doi-asserted-by":"crossref","first-page":"289","DOI":"10.1001\/archsurg.1973.01350150029008","article-title":"Hypertrophied ligamentum flavum. 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