caa a22 4500 463181131 CHVBK 20180406164839.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s00381-006-0201-9 doi (NATIONALLICENCE)springer-10.1007/s00381-006-0201-9 Chondroblastoma of the apex portion of petrousal bone [Elektronische Daten] [Grégory Dran, Eric Niesar, Fanny Vandenbos, Georges Noel, Philippe Paquis, Michel Lonjon] Background: Skull chondroblastoma is extremely rare. We described in this study the first case of petrousal bone apex chondroblastoma. Methods: The tumor occurred in a 12-year-old girl and was revealed by left hypoacusis, vertigo, and walking instability. Computerized tomography scan depicted well-demarcated and osteolytic lesion of the left petrousal bone just before the internal acoustic meatus. The tumor was operated on by a subtemporal approach with a subtotal resection. Lesion recurred and was operated a second time by a combined approach subtemporal and translabyrinthine. This treatment was completed by radiotherapy. We used a combination of photon therapy and proton therapy. Outcome was good and free of recurrence 36months after the second operation. Conclusion: Proton therapy can be particularly useful for skull base tumors frequently radioresistant and near very important structures. This case is the first one of a successful treatment by proton therapy for chondroblastoma recurrence. Springer-Verlag, 2006 Chondroblastoma nationallicence Pediatric tumor nationallicence Primary bone tumor nationallicence Proton therapy nationallicence Skull base tumor nationallicence Dran Grégory Department of Neurosurgery, Gui de Chauliac Hospital, 2 av Emile Bertin Sans, 34000, Montpellier, France aut Niesar Eric Department of Neurosurgery, Pasteur Hospital, 30 Voie Romaine, 06000, Nice, France aut Vandenbos Fanny Department of Pathology, Pasteur Hospital, 30 Voie Romaine, 06000, Nice, France aut Noel Georges Department of Radiotherapy, Paul Strauss Center, BP42, 67065, Strasbourg Cedex, France aut Paquis Philippe Department of Neurosurgery, Pasteur Hospital, 30 Voie Romaine, 06000, Nice, France aut Lonjon Michel Department of Neurosurgery, Pasteur Hospital, 30 Voie Romaine, 06000, Nice, France aut Child's Nervous System Springer-Verlag 23/2(2007-02-01), 231-235 0256-7040 23:2<231 2007 23 381 https://doi.org/10.1007/s00381-006-0201-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00381-006-0201-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dran Grégory Department of Neurosurgery, Gui de Chauliac Hospital, 2 av Emile Bertin Sans, 34000, Montpellier, France aut NATIONALLICENCE 700 1- Niesar Eric Department of Neurosurgery, Pasteur Hospital, 30 Voie Romaine, 06000, Nice, France aut NATIONALLICENCE 700 1- Vandenbos Fanny Department of Pathology, Pasteur Hospital, 30 Voie Romaine, 06000, Nice, France aut NATIONALLICENCE 700 1- Noel Georges Department of Radiotherapy, Paul Strauss Center, BP42, 67065, Strasbourg Cedex, France aut NATIONALLICENCE 700 1- Paquis Philippe Department of Neurosurgery, Pasteur Hospital, 30 Voie Romaine, 06000, Nice, France aut NATIONALLICENCE 700 1- Lonjon Michel Department of Neurosurgery, Pasteur Hospital, 30 Voie Romaine, 06000, Nice, France aut NATIONALLICENCE 773 0- Child's Nervous System Springer-Verlag 23/2(2007-02-01), 231-235 0256-7040 23:2<231 2007 23 381 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer