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. 2023 Jan;28(1):184-190.
doi: 10.1007/s10147-022-02267-w. Epub 2022 Nov 19.

Secondary osteosarcoma: a challenge indeed

Cristina Meazza  1 , Sironi Giovanna  2 , Olga Nigro  2 , Giovanna Gattuso  2 , Barretta Francesco  3 , Marta Podda  2 , Roberto Luksch  2 , Veronica Biassoni  2 , Elisabetta Schiavello  2 , Andrea Ferrari  2 , Filippo Spreafico  2 , Michela Casanova  2 , Stefano Chiaravalli  2 , Nadia Puma  2 , Luca Bergamaschi  2 , Virginia Livellara  2 , Morosi Carlo  4 , Antonina Parafioriti  5 , Primo Daolio  6 , Stefano Bastoni  6 , Sabina Vennarini  7 , Emilia Pecori  7 , Ombretta Alessandro  7 , Paola Collini  8 , Maura Massimino  2 , Monica Terenziani  2
Affiliations

Secondary osteosarcoma: a challenge indeed

Cristina Meazza et al. Int J Clin Oncol. 2023 Jan.

Abstract

Background: The risk of survivors developing a secondary bone sarcoma after being treated for pediatric cancers is well established. The aim of this study was to examine the clinical characteristics and outcomes of patients with secondary osteosarcoma (SOS).

Methods: The study concerns survivors of childhood and adolescence primary neoplasms (PN) treated with chemotherapy, with or without radiotherapy and surgery, subsequently diagnosed with SOS.

Results: We identified 26 patients (13 females, 13 males) who developed SOS a median 7.3 years after being diagnosed with a PN (5/7 of these patients tested for Li-Fraumeni and found positive for the syndrome). The sample's median age was 8.0 and 15.0 years when their PN and SOS were diagnosed, respectively. To treat their PN, 24 out of 26 patients had been given radiotherapy, and 19 had received chemotherapy including doxorubicin. A considerable number of SOS occurred at unfavorable sites (nine hip bone, six skull). All but one patient received chemotherapy with tailored schedules, omitting doxorubicin in 19 cases. Eighteen of the 26 patients underwent surgery. The 5- and 10-year overall survival and probabilities after the diagnosis of SOS (95% confidence interval) were 50% (32.7-76.5%) and 38.9% (22.4-67.4%); 5- and 10-year progression-free survival was 47% (29.9-73.7%) and 35.2% (19.3-64.4%), respectively.

Conclusions: The survival rates after SOS are lower than in patients with primary osteosarcoma, but not negligible. It is therefore mandatory to discuss the best choice of treatment for such patients at a referral center, in terms of their chances of cure and quality of life.

Keywords: Chemotherapy; Childhood cancer; Radiotherapy; Secondary osteosarcoma; Surgery.

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