Brian K Reilly1, AeRang Kim2, Maria T Peña3, Tiffany A Dong4, Christopher Rossi5, Jonathan G Murnick6, Sukgi S Choi7. 1. Children's National Medical Center, Division of Otolaryngology, George Washington University Medical Center, 111 Michigan Avenue, NW Washington, DC 20010, United States. Electronic address: Breilly@childrensnational.org. 2. Center for Cancer and Blood Disorder Children's National Medical Center, 111 Michigan Ave, NW Washington, DC 20010, United States. Electronic address: AeKim@childrensnational.org. 3. Children's National Medical Center, Sheikh Zayed Campus for Advanced Children's Medicine, 111 Michigan Avenue, NW Washington, DC 20010, United States. Electronic address: Mpena@childrensnational.org. 4. George Washington University Medical Center, 2300 Eye St, NW Washington, DC 20037, United States. Electronic address: Tdong@gwmail.gwu.edu. 5. Department of Pathology Children's National Medical Center, 111 Michigan Avenue, NW Washington, DC 20010, United States. Electronic address: Ctrossi@childrensnational.org. 6. Children's National Medical Center, Department of Diagnostic Imaging and Radiology, NW Washington, DC, United States. Electronic address: Jmurnick@childrensnational.org. 7. Pediatric Otolaryngology, Children's Hospital of Pittsburgh, Pittsburgh, PA, United States; Otolaryngology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States. Electronic address: Sukgi.choi@chp.edu.
Abstract
OBJECTIVE: To review the clinical presentation, histology, staging, treatment modalities, and survival for pediatric head and neck rhabdomyosarcoma (non-orbital). STUDY DESIGN: Retrospective chart review at a tertiary pediatric hospital of children treated over 18 years (1996-2014) for primary head and neck non-orbital rhabdomyosarcoma. METHODS: Medical charts were examined for clinical presentation, staging, histology, genetic abnormalities, treatment modalities, recurrence and complications from treatment. RESULTS: Our cohort was 17 children (7 male, 10 female) with rhabdomyosarcoma with a median age of 6.3 years (range <1-19). The majority of tumors were of parameningeal location (13/17) with embryonal histology (11/17). Twenty-nine percent (5/17) demonstrated advanced metastatic disease at initial referral. Fifty-three percent (9/17) had skull base erosion and/or cranial nerve deficits. PET CT scan was performed in 4 patients. The overall survival was 75% for the duration of the study. Primary surgical excision was performed in all 4 patients with nonparameningeal tumors as compared to only 1 patient with a parameningeal tumor. All received chemotherapy and radiotherapy, as none had completely resectable disease. CONCLUSION: Pediatric non-orbital primary rhabdomyosarcoma of the head and neck usually has a rapid onset and presents with advanced disease. Our analysis found that the majority of patients in our series had a cranial neuropathy at presentation, which highlights how advanced the disease is in these patients at presentation. The first mode of surgical intervention should be directed toward biopsy in junction with a metastatic work-up. Primary excision with negative microscopic margins for nonparameningeal rhabdomyosarcoma is ideal to spare radiotherapy but was not achievable in our cohort. The benefits of second-look biopsy after chemotherapy and radiation are still unproven; however, we believe that it was beneficial in two patients in our review for further resection thus decreasing subsequent radiation. Fluorodeoxy-d-glucose positron emission tomography (PET) to evaluate disease post treatment may further define the role for second look surgery.
OBJECTIVE: To review the clinical presentation, histology, staging, treatment modalities, and survival for pediatric head and neck rhabdomyosarcoma (non-orbital). STUDY DESIGN: Retrospective chart review at a tertiary pediatric hospital of children treated over 18 years (1996-2014) for primary head and neck non-orbital rhabdomyosarcoma. METHODS: Medical charts were examined for clinical presentation, staging, histology, genetic abnormalities, treatment modalities, recurrence and complications from treatment. RESULTS: Our cohort was 17 children (7 male, 10 female) with rhabdomyosarcoma with a median age of 6.3 years (range <1-19). The majority of tumors were of parameningeal location (13/17) with embryonal histology (11/17). Twenty-nine percent (5/17) demonstrated advanced metastatic disease at initial referral. Fifty-three percent (9/17) had skull base erosion and/or cranial nerve deficits. PET CT scan was performed in 4 patients. The overall survival was 75% for the duration of the study. Primary surgical excision was performed in all 4 patients with nonparameningeal tumors as compared to only 1 patient with a parameningeal tumor. All received chemotherapy and radiotherapy, as none had completely resectable disease. CONCLUSION: Pediatric non-orbital primary rhabdomyosarcoma of the head and neck usually has a rapid onset and presents with advanced disease. Our analysis found that the majority of patients in our series had a cranial neuropathy at presentation, which highlights how advanced the disease is in these patients at presentation. The first mode of surgical intervention should be directed toward biopsy in junction with a metastatic work-up. Primary excision with negative microscopic margins for nonparameningeal rhabdomyosarcoma is ideal to spare radiotherapy but was not achievable in our cohort. The benefits of second-look biopsy after chemotherapy and radiation are still unproven; however, we believe that it was beneficial in two patients in our review for further resection thus decreasing subsequent radiation. Fluorodeoxy-d-glucose positron emission tomography (PET) to evaluate disease post treatment may further define the role for second look surgery.
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