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The transglabellar/subcranial approach for surgical excision of periocular second tumors in retinoblastoma.
Orbit 2008
PURPOSE: To evaluate the use of transglabellar/subcranial approach for surgical resection of periocular second non-ocular tumors in retinoblastoma patients.
METHODS: Seven retinoblastoma patients with periocular second tumor involving anterior skull base underwent surgical resection by transglabellar/subcranial approach in a single center. The medical records of these patients were retrospectively evaluated.
RESULTS: The most common presenting symptom in retinoblastoma patients with periocular second tumor was difficulty in maintaining the prosthesis in three patients (43%), followed by epistaxis in one (14%), palpable orbital mass in one (14%), persistent periocular swelling in one (14%), and visual loss in one (14%) patient. Periocular second tumors were leiomyosarcoma in three (43%) patients, osteosarcoma in three (43%), and sphenoid wing meningioma in one (14%) patient. Surgical resection by the transglabellar/subcranial approach was the only treatment in one (14%) patient with sphenoid wing meningioma and was combined with chemotherapy in three (43%) patients, and with both external beam radiotherapy and chemotherapy in three (43%) patients. Surgical margins were negative in three (43%) patients and microscopically positive in four (57%) patients. Complications were minor, including cerebral spinal fluid (CSF) leak in one (14%) patient and CSF leak and subgaleal hematoma in one (14%) patient. After 31 months mean follow-up, three (43%) patients were alive and four patients (57%) were dead.
CONCLUSIONS: Retinoblastoma patients with periocular second tumors have a poor prognosis. The transglabellar/subcranial approach can be used for surgical resection of periocular second tumor involving skull base with low morbidity.
METHODS: Seven retinoblastoma patients with periocular second tumor involving anterior skull base underwent surgical resection by transglabellar/subcranial approach in a single center. The medical records of these patients were retrospectively evaluated.
RESULTS: The most common presenting symptom in retinoblastoma patients with periocular second tumor was difficulty in maintaining the prosthesis in three patients (43%), followed by epistaxis in one (14%), palpable orbital mass in one (14%), persistent periocular swelling in one (14%), and visual loss in one (14%) patient. Periocular second tumors were leiomyosarcoma in three (43%) patients, osteosarcoma in three (43%), and sphenoid wing meningioma in one (14%) patient. Surgical resection by the transglabellar/subcranial approach was the only treatment in one (14%) patient with sphenoid wing meningioma and was combined with chemotherapy in three (43%) patients, and with both external beam radiotherapy and chemotherapy in three (43%) patients. Surgical margins were negative in three (43%) patients and microscopically positive in four (57%) patients. Complications were minor, including cerebral spinal fluid (CSF) leak in one (14%) patient and CSF leak and subgaleal hematoma in one (14%) patient. After 31 months mean follow-up, three (43%) patients were alive and four patients (57%) were dead.
CONCLUSIONS: Retinoblastoma patients with periocular second tumors have a poor prognosis. The transglabellar/subcranial approach can be used for surgical resection of periocular second tumor involving skull base with low morbidity.
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