Document Type: Case Reports

Authors

Dept. of Pathology, VIMS, Bellary, India

Abstract

  Extra-skeletal Ewing’s sarcoma is a rare soft tissue malignant neoplasm, morphologically indistinguishable from skeletal Ewing’s sarcoma. The usual sites of involvement are the soft tissues of para-vertebral region, chest wall, and lower extremity. Extra-skeletal Ewing’s sarcoma is rare in the head and neck region and very few cases are reported in the parotid gland. The cytological features of a case of extra-skeletal Ewing’s sarcoma involving the parotid gland, an extremely uncommon site for occurrence of this tumor, are reported here. The significance of the fine needle aspiration cytology lies in the early diagnosis and hence better prognosis of this lesion.  

Keywords

  1. Takahama A, Leon JE, Almida OP, Paulo L. Nonlymphoid mesenchymal tumors of parotid gland. Oral Oncol 2008;44(10):970-4.
  2. Khan A R. FNAC of Ewing’s sarcoma family of tumors, skeletal and extra-skeletal. A study of 21 cases. (Part IV). JK practitioner 2003;10(4).309-14.
  3. Sandhu MS, Kalra N, Singh DP, Radotra BD, Jain M, Suri S. Case report: Extraskeletal Ewing's sarcoma of the parotid gland. Indian J Radiol Imaging 2000;10:227-8.
  4. Deb RA, Desai SB, Amonkar PP. Primary primitive neuroectodermal tumor of parotid gland. Histopathology 1998;33:375-6.
  5. Weiss SW, Goldblum JR editors. Primitive Neuroectodermal Tumors and related lesions. In: Enzinger and Weiss’s Soft Tissue Sarcoma.  4th ed. St Louis: Mosby; 2001. pp 1289-1308.
  6. Guiter GE, Gamboni MM, Zakowski MF. The cytology of extra-skeletal Ewing sarcoma. Cancer 1999;87(3):141-8.
  7. Bakhos R, Andrey J, Bhoopalam N, Jensen J, Reyes CV. Fine needle aspiration cytology of extra-skeletal Ewing’s sarcoma. Diagn Cytopathol 1998;18:137-40.
  8. Malhotra P, Hora H, Agrawal U. Capillary vessels in Ewing's sarcoma: Overlooked? J Cytol 2009;26(3):126-7.