Below, week by week, is what OnCo's record of Langerhans cell histiocytosis (LCH) says about the first two months: the order is typical, the timing is yours to ask about. Langerhans cell histiocytosis is a disorder in which a small group of immune cells with a faulty growth signal (most often a BRAF mutation) pile up in bone, skin, pituitary or organs. It ranges from a single bone lesion that heals after biopsy to a life-threatening disease of infants. A year of gentle chemotherapy cures most children, and BRAF or MEK inhibitors rescue those with resistant disease. Sections appear only where the record has something to say. Orientation, not medical advice.
Staging tests establish exactly what and where the cancer is. Everything else follows from the answers.
Ask which of these were tested and what the results were; see the report reader for what each value means.
These specialties appear in the standard of care for this cancer. In most centres they meet weekly as a tumour board to agree each plan; you can ask when yours was discussed and what was decided.
A second opinion from a centre that treats many similar cases is normal, not rude; the standard of care tells you what to compare it against.
Each row is a setting from the standard of care, in the order it usually arises. Not all will apply to you; your stage and biomarkers decide which do. The guideline grade, where recorded, says how strong the evidence is.
Biopsy or curettage with observation; intralesional steroid, topical therapy or indomethacin for symptomatic lesions; systemic therapy for multifocal bone or CNS-risk lesions.
Vinblastine and prednisone for 12 months (LCH-III), with response assessment at 6 weeks; LCH-IV tests further tailoring of duration and intensity.
MAPK-pathway inhibition (BRAF or MEK inhibitor) with neurological monitoring; early MRI detection in children with pituitary or craniofacial disease.
Cladribine plus cytarabine or clofarabine salvage; BRAF inhibitor (vemurafenib or dabrafenib, with trametinib) for BRAF V600E, MEK inhibitor for MAP2K1-mutant disease.
Generated from this cancer's standard of care, biomarkers and open problems. Take the group that matches where you are. To tick, add your own and print, open the one-page appointment sheet.
Trials open now for this cancer in OnCo, largest phase first. Joining a trial is a decision like any other: ask what the comparison arm is, whether a placebo is used, and what happens if you leave. The cancer page searches ClinicalTrials.gov live for more.
Much of what helps in the first weeks is free if you know to ask: testing, helplines, rides and lodging, second opinions, trial travel.
Every term links to the glossary.