|Year : 2016 | Volume
| Issue : 3 | Page : 313
Esthesioneuroblastoma with intracranial extension: A non-surgical approach
Sarah Boby Thomas1, Deepak Balasubramaniam2, KR Hiran3, M Dinesh2, K Pavithran4
1 Department of Radiation Oncology, Amrita Institute of Medical Sciences and Research Centre Edapally, Elammakara, Kochi, Kerala, India
2 Department of Head and Neck Oncology, Amrita Institute of Medical Sciences and Research Centre Edapally, Elammakara, Kochi, Kerala, India
3 Department of Pathology, Amrita Institute of Medical Sciences and Research Centre Edapally, Elammakara, Kochi, Kerala, India
4 Department of Medical Oncology, Amrita Institute of Medical Sciences and Research Centre Edapally, Elammakara, Kochi, Kerala, India
|Date of Web Publication||5-Apr-2016|
Dr. Sarah Boby Thomas
Department of Radiation Oncology, Amrita Institute of Medical Sciences and Research Centre, Edapally, Elammakara, Kochi - 682 041, Kerala
Source of Support: None, Conflict of Interest: None
Esthesioneuroblastoma is a rare tumor arising from the olfactory mucosa of upper respiratory tract. The primary modality of treatment has been surgery with craniofacial resection followed by post-operative radiotherapy. There are only a few reported cases of non-surgical approaches. We report a case of esthesioneuroblastoma with intracranial extension treated with Vincristine, Adriamycin, Cyclophosphamide, Ifosfamide, Etoposide protocol followed by radiation with 5 years of follow-up. This is the first reported case using this chemotherapy schedule.
Keywords: Chemo radiation, esthesioneuroblastoma, intracranial extension
|How to cite this article:|
Thomas SB, Balasubramaniam D, Hiran K R, Dinesh M, Pavithran K. Esthesioneuroblastoma with intracranial extension: A non-surgical approach. Asian J Neurosurg 2016;11:313
|How to cite this URL:|
Thomas SB, Balasubramaniam D, Hiran K R, Dinesh M, Pavithran K. Esthesioneuroblastoma with intracranial extension: A non-surgical approach. Asian J Neurosurg [serial online] 2016 [cited 2019 Dec 14];11:313. Available from: http://www.asianjns.org/text.asp?2016/11/3/313/145087
| Introduction|| |
Esthesioneuroblastoma, also known as olfactory neuroblastoma is a rare and aggressive malignant neoplasm that originates in the olfactory epithelium of the upper nasal cavity accounting for 3-6% of intranasal tumors. Surgical resection and post-operative radiotherapy is the standard of care. Advanced cases with intracranial extension pose a surgical challenge. Chemotherapy can be used in the Neoadjuvant and adjuvant setting. We report the case of a 13-year-old girl with esthesioneuroblastoma having intracranial extension treated using neoadjuvant chemotherapy followed by radiation.
| Case Report|| |
A 13-year-old female presented with recurrent nasal bleeding of 1 year duration and progressive nasal obstruction of 2 months duration. Clinical examination revealed a mass in the left nostril. Computed tomography (CT) brain scan showed a soft-tissue density mass in left maxillary sinus with destruction of nasal septum and medial wall of left orbit. A biopsy reported a small round blue cell neoplasm [Figure 1]. Immunohistochemistry showed diffuse strong positivity for S100 [Figure 2] and Synaptophysin [Figure 3]. It was negative for Cytokeratin, Desmin, Leukocyte common antigen, CD99 and Vimentin, consistent with Esthesioneuroblastoma, Hyams Grade2. Magnetic resonance imaging (MRI) [Figure 4] showed a lesion involving primarily left nasal cavity and bilateral posterior ethmoidal sinuses. The nasal septum, osteo meatal complex and ostea of frontal sinuses were also involved with occluded ostium of frontal sinuses leading to accumulation of secretions in left maxillary sinus and frontal sinus. MRI also showed extension to the left orbit, optic canal, cavernous sinus, and anterior cranial fossa. She was staged as Kadish Stage C.
|Figure 4: Magnetic resonance imaging with contrast showing intracranial extension|
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After discussion in the multi-disciplinary tumor board, it was decided to offer her Neoadjuvant chemotherapy and adjuvant radiotherapy. She received chemotherapy with VAdrC–IE protocol (Vincristine 2 mg/m 2 Day 1, Adriamycin 75 mg/m 2 Day 1, Cyclophosphamide 1200 mg/m 2 Day 1, alternating with Ifosfamide 1800 mg/m 2 D1–D5, Etoposide 100 mg/m 2 Day 1-day 5 Q 3 weekly). She was reassessed with a CT Brain after six cycles, which revealed near complete response to chemotherapy [Figure 5]. Radiation was delivered using a 3D conformal plan to a total dose of 6000 cGy in 30 fractions. The target volume included the pre-chemotherapy tumor volume with margins. She tolerated treatment well except for Grade 1 skin reactions. She has been on regular follow-up with annual CT scans [Figure 6]. With 60 months of follow-up she continues to be disease free without any delayed complications of therapy.
|Figure 5: Computed tomography images post chemotherapy showing complete response|
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|Figure 6: Pretreatment MRI on the left. 3 years post chemoradiation computed tomography scan showing no evidence of disease|
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| Discussion|| |
Esthesioneuroblastoma is a rare tumor originating in the upper nasal cavity. Craniofacial resection with adjuvant radiation is the most accepted approach in resectable cases. Limited surgery with non-craniofacial resection followed by chemotherapy and radiation have also been reported. Chemotherapy along with radiation has been used in the management of Esthesioneuroblastoma in an effort to decrease the morbidity of surgery with mixed results. Esthesioneuroblastoma is moderately radiosensitive to post-operative doses of 60-66 Gy. Neoadjuvant chemotherapy followed by radiation and craniofacial resection has been advocated by the University of Virginia for Kadish Stage C.
At Harvard a nonsurgical approach included neoadjuvant chemotherapy using Cisplatin and Etoposide followed by proton therapy showing excellent results.
Mishima et al. achieved a complete response in eight out of 12 patients with an aggressive multi agent chemotherapy schedule. Turano et al. reported a case successfully treated using the same regimen, alternating Cisplatin Etoposide with Doxorubicin, Ifosphamide and Vincristine.
We however chose to use VAdrC IE, a schedule commonly employed for primitive neuroectodermal tumors. Our patient, an adolescent girl, the first ever reported case with this chemotherapy schedule showed an excellent response, which was consolidated with radiotherapy. This case report highlights the use of definitive chemoradiation in Esthesioneuroblastoma as a possible curative option. Further avenues of research are needed to demonstrate the efficacy of chemo radiation in this rare neuronal cancer.
| References|| |
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[Figure 1], [Figure 2], [Figure 3], [Figure 4], [Figure 5], [Figure 6]
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