diagnostic slide session american association of neuropathologists caitlin latimer, m.d., ph.d....
TRANSCRIPT
Diagnostic Slide SessionAmerican Association of Neuropathologists
Caitlin Latimer, M.D., Ph.D.University of Kentucky
Disclosures
No financial relationships to disclose
Case history
15-year-old African-American male
Prior “eosinophilic cellulitis”
Several months of headaches seizure
Imaging
Questions
Additional special stains or studies?
Diagnosis?
CD68
CD1a
S-100
S-100
Final Diagnosis
Rosai-Dorfman Disease of the dura
Rosai-Dorfman Disease
Rosai-Dorfman Disease
Rosai-Dorfman Disease
40% present with extranodal disease
CNS involvement is rareolder patientsextra-axial mass HA, seizures, focal deficits
Radiologic DDx:
Hemangiopericytoma Gliosarcoma Leiomyosarcoma Hodgkin’s disease Plasmacytomas Neurosarcoidosis Plasma Cell Granuloma
Meningioma
Histopathologic DDx:
Inflammatory myofibroblastic tumor
Infection/Abscess
Plasmacytoma
Langerhans Cell Histiocytosis
Rosai-Dorfman Disease: histology
Mixed inflammatory infiltrate
Large pale cells CD68+, CD1a- , S-100+
Emperipolesis
Treatment & Prognosis
Surgery, corticosteroids, radio/chemotherapy
Isolated CNS disease =
Widespread dissemination =
Follow-Up on Our Patient
Initial increase in residual tumor, but stable
Gradually tapered off Sz meds Status epilepticus 1 yr ago
Suggested course of vinblastine and prednisone
References1. Johnson, M.D., Powell, S.Z., Boyer, P.J., Weil, R.J. & Moots, P.L. Dural lesions
mimicking meningiomas. Human pathology 33, 1211-1226 (2002).
2. Theeler, B.J., Keylock, J.B. & Yoest, S.M. Teaching NeuroImage: isolated intracranial Rosai-Dorfman disease mimicking a meningioma. Neurology 70, e42 (2008).
3. Konishi, E., Ibayashi, N., Yamamoto, S. & Scheithauer, B.W. Isolated intracranial Rosai-Dorfman disease (sinus histiocytosis with massive lymphadenopathy). AJNR. American journal of neuroradiology 24, 515-518 (2003).
4. Andriko, J.A., Morrison, A., Colegial, C.H., Davis, B.J. & Jones, R.V. Rosai-Dorfman disease isolated to the central nervous system: a report of 11 cases. Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc 14, 172-178 (2001).
5. Zhu, H., et al. Imaging characteristics of Rosai-Dorfman disease in the central nervous system. European journal of radiology 81, 1265-1272 (2012).
6. Pulsoni, A., et al. Treatment of sinus histiocytosis with massive lymphadenopathy (Rosai-Dorfman disease): report of a case and literature review. American journal of hematology 69, 67-71 (2002).
7. Le Guenno, G., et al. Successful treatment with azathioprine of relapsing Rosai-Dorfman disease of the central nervous system. Journal of neurosurgery 117, 486-489 (2012).