Bilateral thinning of the parietal bones

Changed by Yahya Baba, 12 Feb 2023

Disclosures - updated 6 Apr 2022: Nothing to disclose

Updates to Article Attributes

Body was changed:

Show markup changes

Bilateral thinning of the parietal bones, also known as biparietal osteodystrophy, is an uncommon, slowly progressive acquired disease of middle-aged people with a slight female predilection. It is typically an incidental finding.

Pathology

The aetiology is unknown but is thought to be an age-related process due to osteoporosis.

Microscopic appearance

On histologic examination, there is a lack of osteoclasts.

Radiographic features

Nuclear medicine

~~Bone~~The bone scan usually shows well ~~defined~~-defined areas of photopenia, which further supports the osteoporotic aetiology of this process.

Treatment and prognosis

In severe cases where the brain is exposed to atmospheric pressure, cranioplasty may be indicated.

-<p><strong>Bilateral thinning of the parietal bones</strong>, also known as <strong>biparietal osteodystrophy</strong>, is an uncommon, slowly progressive acquired disease of middle-aged people with slight female predilection. It is typically an incidental finding. </p><h4>Pathology</h4><p>The aetiology is unknown but is thought to be an age-related process due to <a href="/articles/osteoporosis-3">osteoporosis</a>.</p><h5>Microscopic appearance</h5><p>On histologic examination, there is a lack of osteoclasts.</p><h4>Radiographic features</h4><h5>Nuclear medicine</h5><p>Bone scan usually shows well defined areas of photopenia, which further supports the osteoporotic aetiology of this process.</p><h4>Treatment and prognosis</h4><p>In severe cases where brain is exposed to atmospheric pressure, cranioplasty may be indicated.</p>
+<p><strong>Bilateral thinning of the parietal bones</strong>, also known as <strong>biparietal osteodystrophy</strong>, is an uncommon, slowly progressive acquired disease of middle-aged people with a slight female predilection. It is typically an incidental finding. </p><h4>Pathology</h4><p>The aetiology is unknown but is thought to be an age-related process due to <a href="/articles/osteoporosis-3">osteoporosis</a>.</p><h5>Microscopic appearance</h5><p>On histologic examination, there is a lack of osteoclasts.</p><h4>Radiographic features</h4><h5>Nuclear medicine</h5><p>The bone scan usually shows well-defined areas of photopenia, which further supports the osteoporotic aetiology of this process.</p><h4>Treatment and prognosis</h4><p>In severe cases where the brain is exposed to atmospheric pressure, cranioplasty may be indicated.</p>

References changed:

1. Yiu Luk S, Fai Shum J, Wai Chan J, San Khoo J. Bilateral Thinning of the Parietal Bones: A Case Report and Review of Radiological Features. Pan Afr Med J. 2010;4:7. <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2984314">PMC2984314</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/21119992">Pubmed</a>
2. Cederlund C, Andr�n L, Olivecrona H. Progressive Bilateral Thinning of the Parietal Bones. Skeletal Radiol. 1982;8(1):29-33. <a href="https://doi.org/10.1007/bf00361365">doi:10.1007/bf00361365</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/7079780">Pubmed</a>
3. Girish Fatterpekar, Thomas P. Naidich, Peter M. Som. The Teaching Files. (2011) ISBN: 9781416056201 - <a href="http://books.google.com/books?vid=ISBN9781416056201">Google Books</a>
1. Yiu Luk S, Fai Shum JS, Wai Chan JK et-al. Bilateral thinning of the parietal bones: a case report and review of radiological features. Pan Afr Med J. 2011;4: 7. <a href="http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2984314">Free text at pubmed</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/21119992">Pubmed citation</a><span class="auto"></span>
2. Cederlund C, Andrn L, Olivecrona H. Skeletal Radiology. 1982;8 (1): . <a href="http://dx.doi.org/10.1007/BF00361365">doi:10.1007/BF00361365</a><span class="auto"></span>
3. Fatterpekar G, Naidich TP, Som PM. The Teaching Files: Brain and Spine: Expert Consult - Online and Print, 1e. Saunders. ISBN:1416056203. <a href="http://books.google.com/books?vid=ISBN1416056203">Read it at Google Books</a> - <a href="http://www.amazon.com/gp/product/1416056203">Find it at Amazon</a><span class="auto"></span>

Images Changes:

Image 6 CT (bone window) ( create )

ADVERTISEMENT: Supporters see fewer/no ads

{"current_user":null,"inclusions":[{"imageId":17396,"studyId":6907,"caseSlug":"bilateral-thinning-of-the-parietal-bones","caption":"Case 1","isStack":false,"diagnosticCertainty":"confirmed_unsubstantiated","thumbnail":"https://prod-images-static.radiopaedia.org/images/17396/fc48fe21fba651db5ac2588d9dede6_big_gallery.jpeg"},{"imageId":18706452,"studyId":45246,"caseSlug":"bilateral-thinning-of-the-parietal-bones-1","caption":"Case 2","isStack":true,"diagnosticCertainty":"confirmed_unsubstantiated","thumbnail":"https://prod-images-static.radiopaedia.org/images/18706452/2be64c4a5b6db0b96a868d73ffbda488c0654905f8124a7c786f8dcff7560838_big_gallery.jpeg"},{"imageId":19624486,"studyId":46237,"caseSlug":"parietal-skull-vault-thinning","caption":"Case 3","isStack":false,"diagnosticCertainty":"confirmed_substantiated","thumbnail":"https://prod-images-static.radiopaedia.org/images/19624486/861ed2b6637d5156fae0bbc1df908e_big_gallery.jpeg"},{"imageId":23605535,"studyId":50461,"caseSlug":"biparietal-osteodystrophy","caption":"Case 4","isStack":false,"diagnosticCertainty":"confirmed_substantiated","thumbnail":"https://prod-images-static.radiopaedia.org/images/23605535/a0e84ca79686cb008e17c1380f9a78_big_gallery.jpeg"},{"imageId":60352069,"studyId":129309,"caseSlug":"biparietal-osteodystrophy-thinning-of-parietal-bones","caption":"Case 5","isStack":true,"diagnosticCertainty":"confirmed_substantiated","thumbnail":"https://prod-images-static.radiopaedia.org/images/60352069/e0a65c1a9f756d7e4140cc5da3d563eb5c670253e7c3fe47c514fbb69ed59029_big_gallery.jpeg"},{"imageId":61169945,"studyId":132304,"caseSlug":"bilateral-thinning-of-the-parietal-bones-2","caption":"Case 6","isStack":true,"diagnosticCertainty":"confirmed_substantiated","thumbnail":"https://prod-images-static.radiopaedia.org/images/61169945/d2a2e3ccf76ef5f9bbaafc4628479306677822197dc70da369344f7b1e998c22_big_gallery.jpeg"},{"imageId":66459959,"studyId":151719,"caseSlug":"bilateral-thinning-of-the-parietal-bones-4","caption":"Case 7","isStack":true,"diagnosticCertainty":null,"thumbnail":"https://prod-images-static.radiopaedia.org/images/66459959/07f56aff99030c27c83a15fbbc11e84aab8a0959a3eb0a77d23c80ea7c6bb9f8_big_gallery.jpeg"}],"ddx_inclusions":[],"lang":"gb"}