Family Roadmap
First 30 Days After an Osteosarcoma Diagnosis
A week-by-week guide of what happens next: the medical process, the decisions ahead, and how to take care of your family while the system takes care of your child.
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Week by week, so you know what's coming next.
What's inside
- Week 1 · Diagnosis and staging — what biopsy, MRI, CT, and bone scan results actually mean, and what to do this week.
- Week 2 · Treatment planning — understanding the MAP chemotherapy protocol and what your tumor board meeting will cover.
- The second-opinion question · your right to one, how it works, and why it rarely delays treatment.
- Weeks 3–4 · treatment begins — what to expect from the first chemotherapy cycles and how to recognize neutropenic fever.
- Taking care of your family · siblings, your own mental health, financial planning, and a communication strategy that protects your energy.
The timeline at a glance
Source: The Family Roadmap · First 30 Days, The Bardo Foundation (2026), drawing on standard Children's Oncology Group treatment protocols.
Frequently asked questions
What happens in the first week after an osteosarcoma diagnosis is suspected?
The diagnostic workup typically includes a biopsy to confirm the diagnosis and grade, an MRI of the affected limb, a CT scan of the chest to check for lung metastases, a bone scan, and baseline blood work. Biopsy results usually take 3–7 days.
When does chemotherapy usually start?
Chemotherapy typically begins within 2 to 4 weeks of diagnosis, once staging is complete and a central venous access device has been placed. The first cycle is closely monitored to establish how your child tolerates the drugs.
Should we get a second opinion?
You have the right to seek one, and doing so does not delay treatment in most cases. For a disease as rare as osteosarcoma, a second opinion from a high-volume sarcoma center can confirm the diagnosis and identify clinical trial options that may not be available everywhere.
How long does osteosarcoma treatment usually take in total?
The full arc is typically 6 to 12 months: about 10 weeks of neoadjuvant chemotherapy, then surgery, then roughly 18 weeks of adjuvant chemotherapy, followed by a surveillance schedule that continues for 5 or more years.
Related guides
- Once treatment begins, the parent's guide to osteosarcoma research goes deeper on the science and the active clinical trials.
- See what the evidence says about exercise during cancer treatment for guidance on staying active once chemotherapy is underway.
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