Dorsal Thoracic Arachnoidal Web: A Rare Case Report

Year 2025, Volume: 7 Issue: 1, 21 - 23

Adil Aytaç , Bahar Yanik Keyik , Erdoğan Bülbül

Abstract

Arachnoid webs are intradural, extramedullary, fibrous connective tissue bands located, originating from the pial surfaces within the subarachnoid space. Patients may present asymptomatically or with symptomatic conditions associated with cord compression and disturbances in cerebrospinal fluid flow dynamics. Although arachnoid webs themselves are often indistinguishable via imaging modalities, the presence of the highly specific yet non-pathognomonic “scalpel sign” is crucial for diagnosing this entity. Magnetic resonance imaging is the most useful modality for diagnosis. This case report presents the clinical and radiological findings of a 39-year-old patient diagnosed with the rare entity of thoracic arachnoid web.

Keywords

Scalpel Sign, magnetic Resonance Imaging, Arachnoid Web

Ethical Statement

The patient signed free and informed consent form. The authors have no conflicts of interest to declare

Supporting Institution

The authors declared that this study has received no financial support.

Thanks

All of the authors declare that they have all participated in the design, execution, and analysis of the paper, and that they have approved.

Dorsal Torasik Araknoidal Web: Nadir Bir Olgu Sunumu

Abstract

Araknoidal web’ler, subaraknoid boşlukta bulunan ve pial yüzeylerden kaynaklanan intradural ekstramedüller yerleşimli fibröz konnektif doku bantlarıdır. Hastalar asemptomatik olabilir, kord basısı ve beyin omurilik sıvısının akım dinamiğinin bozulması ile ilişkili semptomatik durumlar ile başvurabilirler. Araknoidal web’lerin kendisi, görüntüleme yöntemleri ile genellikle ayırt edilemese de oldukça spesifik ancak patognomonik olmayan ‘’Neşter işareti (Scalpel sign) ‘’nin varlığı bu antitenin tanılandırılmasında önemlidir. Manyetik rezonans görüntüleme tanı için en yararlı modalitedir. Bu olgu sunumunda, nadir görülen bir antite olan torasik araknoidal web tanısı alan 39 yaşındaki bir hastanın klinik ve radyolojik bulgularını sunduk.

Keywords

Neşter İşareti, Manyetik Resonans Görüntüleme, Araknoidal Web

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