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A Clinicopathological Study of Ewing’s Sarcoma/PNET experience from a Tertiary Cancer Centre in North East India

Original Article | Volume 6 | Issue 2 | JBST May-August 2020 | Page 21-24 | Jagannath Dev Sharma, Argha Baruah, Anupam Sarma, Lopa Mudra Kakoti, Nizara Baishya, Shiraj Ahmed. DOI: 10.13107/jbst.2020.v06i02.27

Author: Jagannath Dev Sharma[1], Argha Baruah[1], Anupam Sarma[1], Lopa Mudra Kakoti[1], Nizara Baishya[1], [2], Shiraj Ahmed[1]

[1]Department of Pathology, Dr.B.Borooah Cancer Institute, Guwahati, Assam, India.
[2]Department of Hospital based Cancer registry, Dr.B. Borooah Cancer Institute, Guwahati, Assam.

Address of Correspondence
Dr. Argha Baruah,
Department of Pathology, Dr.B.Borooah Cancer Institute,Guwahati-781028, Assam, India.
E-mail: argha20@gmail.com


Introduction: Ewing sarcoma (ES)/PNET is an aggressive malignant tumor with small round cell morphology affecting mainly children and adolescents. The aim of this study was to study the clinicopathological parameters and immunohistochemical panel of skeletal and extraskeletal ES and to correlate with overall survival.
Case Report: Medical files of 70 patients with ES treated at our center between 2009 and 2015 were retrospectively evaluated. The clinico pathological parameters were extracted and statistically correlated with overall survival(OS). Among 70cases of ES ,41 cases were males and 29 cases were females. Most common age group was 10–20 years. Skeletal involvement was seen in 45 cases(64.2%) and 25cases (35.8%) were extraskeletal. The most common skeletal sites of involvement was lower extremity involving  the Femur (24%) and the most common extraskeletal site involved in our study was sinonasal area(5.7%), followed by chestwall, thigh, orbital, calf, gluteal, kidney, and vulva. Two cases showed involvement of the central nervous system(CNS) involving pineal gland and the ventricle. Two cases showed multiple sites of involvement both including chest wall and thigh. Twenty-nine cases(41.4%) showed metastasized disease. The most common site of metastasis was lung followed by bone and brain. Recurrence was seen in 14 cases(20%). Overall 5-year survival was 24%. There was statistically significant correlation found between tumor size (≥8cm) and 5year survival. Furthermore, significant correlation was found between metastasis and 5-year survival.
Conclusion: ES is an aggressive tumor involving skeletal and extraskeletal sites affecting commonly young people, with a poor prognosis for patients with maximum diameter ≥8cm. Metastasisis common in ES and is also a poor prognostic factor.
Keywords: Ewing’sarcoma, skeletal, extraskeletal, survival, metastasis.

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How to Cite this article: Sharma JD, Baruah A, Sarma A, Kakoti LM, Baishya N, Ahmed S | A Clinicopathological Study of Ewing’s Sarcoma/PNET experience from a Tertiary Cancer Centre in North East India | Journal of  Bone and Soft Tissue Tumors | May-August 2020; 6(2): 21-24.

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