Primary Psammomatous Melanotic Schwannoma of the Spine

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Presentation transcript:

Primary Psammomatous Melanotic Schwannoma of the Spine Selim Bakan, MD, Yasemin Kayadibi, MD, Ezel Ersen, MD, Betul Vatankulu, MD, Nil Ustundag, MD, Zehra Isık Hasıloglu, MD The Annals of Thoracic Surgery Volume 99, Issue 6, Pages e141-e143 (June 2015) DOI: 10.1016/j.athoracsur.2015.02.060 Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions

Fig 1 (A) Axial and (E) sagittal T1-weighted (T1W) images showing paravertebral, extrapleural, dumbbell-shaped soft tissue mass with focal hyperintensity that is significant for melanin component. Lesion originated from spinal canal and extended into neural foramen at the level of T4-5. Arrow indicating the cystic component of the lesion on (B) axial and (D) sagittal T2-weighted (T2W) images. (C) Axial and (F) sagittal T1W images after intravenous contrast administration showing enhanced lesion. The Annals of Thoracic Surgery 2015 99, e141-e143DOI: (10.1016/j.athoracsur.2015.02.060) Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions

Fig 2 (A) Axial computed tomography (CT), (B) positron emission tomography/CT (PET/CT) fusion, and (C) 18F-fluorodeoxyglucose (FDG) PET images showing punctuate calcifications inside soft tissue lesion and increased FDG uptake. The Annals of Thoracic Surgery 2015 99, e141-e143DOI: (10.1016/j.athoracsur.2015.02.060) Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions

Fig 3 Specimen showing peripherally pigmented lesion involving thoracic nerve. The Annals of Thoracic Surgery 2015 99, e141-e143DOI: (10.1016/j.athoracsur.2015.02.060) Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions

Fig 4 (A) Common nuclear and cytoplasmic positivity for S-100 (magnification, ×100). (B) Moderate positivity for HMB-45 (magnification, ×200). The Annals of Thoracic Surgery 2015 99, e141-e143DOI: (10.1016/j.athoracsur.2015.02.060) Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions