116.2 📚 國考版(醫師國考 / PGY OSCE)
116.2.0.1 📌 Cram Sheet
116.2.0.1.1 🔥 高 yield 15
- MM 經典 CRAB: Calcium ↑, Renal failure, Anemia, Bone lytic lesion;任一 + clonal plasma ≥ 10% = MM
- IMWG MDE 22E 加入: marrow ≥ 60%, FLC ratio ≥ 100, MRI ≥ 1 focal lesion ≥ 5 mm — 任一即診斷
- Skeletal imaging gold standard: WBLDCT / MRI / PET-CT(plain x-ray 已淘汰,sensitivity 30%)
- High-risk cytogenetics: del(17p) / t(4;14) / t(14;16) / +1q
- R-ISS staging: β2M + albumin + LDH + cytogenetics → I 5-yr OS 82% / III 40%
- Frontline transplant-eligible: Dara-VRd × 4–6 → ASCT → Lenalidomide maintenance(GRIFFIN)
- Frontline transplant-ineligible: DRd (MAIA, median PFS > 60 mo)
- Bortezomib SC + 每週:減少 PN;要 acyclovir HSV/zoster prophy
- Lenalidomide DVT prophy:aspirin (low-risk) / DOAC or LMWH (high-risk)
- R/R 三線後:BCMA CAR-T (Ide-cel, Cilta-cel CARTITUDE-1 ORR 98%) + Bispecific (teclistamab, elranatamab, talquetamab GPRC5D 22E)
- WM 標記: IgM monoclonal + MYD88 L265P > 90%;hyperviscosity → plasmapheresis
- WM 治療: Ibrutinib + rituximab (MYD88+/CXCR4 wt 反應最好);rituximab IgM flare 警覺
- POEMS: Polyneuropathy + Organomegaly + Endocrinopathy + M-protein (IgA λ) + Skin changes + VEGF ↑↑ + sclerotic(不是 lytic!)骨病灶
- Anti-CD38 (dara/isa) 干擾 type-and-screen → blood bank 標牌
- Solitary plasmacytoma:local RT 40 Gy → cure 多;仍要長期 follow-up(10–15%/yr 前 10 年進展 MM)
116.2.0.1.2 🔢 必背數字
| 項目 | 數字 |
|---|---|
| MM median age | 70 |
| MGUS prevalence > 50y | 3.2% |
| MGUS prevalence > 70y | 7.5% |
| MGUS → MM 進展率 | ~ 1% / 年 |
| SMM → MM 進展率 | ~ 10% / 年(前 5 年) |
| Solitary plasmacytoma 進展 MM | 10–15% / yr 前 10 年 |
| 高 risk SMM 2/20/20 | M > 2g/dL, FLC > 20, marrow > 20% |
| MDE marrow plasma | ≥ 60% |
| MDE FLC ratio | ≥ 100 |
| MDE MRI focal lesion | ≥ 5 mm |
| Solitary plasmacytoma RT | 40 Gy |
| Bisphosphonate 月給 | 12–24 個月 → q 3 mo |
| MM median OS (modern) | 8+ 年 |
| Cilta-cel CARTITUDE-1 ORR | 98% / CR 82% |
| WM MYD88 L265P 頻率 | > 90% |
| WM IgM 在 intravascular | 80%(plasmapheresis 有效原因) |
116.2.0.2 ⭐ 高 yield 表
116.2.0.2.1 MGUS / SMM / MM / Solitary 鑑別
| Disease | M-protein | Marrow PC | CRAB/MDE |
|---|---|---|---|
| MGUS | < 3 g/dL | < 10% | 無 |
| SMM | ≥ 3 g/dL or marrow ≥ 10–60% | 10–60% | 無 |
| MM | 任 | ≥ 10% | + |
| Solitary plasmacytoma | 通常無 | 局部 | 局部 only |
116.2.0.2.2 CRAB Criteria + MDE(IMWG 2014)
| 條件 | 定義 |
|---|---|
| Calcium | > 11 mg/dL(or > 1 mg/dL above ULN) |
| Renal | CrCl < 40 or Cr > 2 |
| Anemia | Hb < 10 (or > 2 g/dL drop) |
| Bone | ≥ 1 lytic lesion on imaging |
| MDE-1 | Marrow plasma ≥ 60% |
| MDE-2 | FLC ratio ≥ 100 |
| MDE-3 | ≥ 1 focal lesion ≥ 5 mm on MRI |
116.2.0.2.3 R-ISS Staging
| Stage | β2M (mg/L) | Albumin (g/dL) | Cytogenetics | LDH | 5-yr OS |
|---|---|---|---|---|---|
| I | < 3.5 | ≥ 3.5 | Standard | Normal | 82% |
| II | 中間 | 中間 | Standard | Normal | 62% |
| III | ≥ 5.5 | — | High | High | 40% |
116.2.0.2.4 MM 治療藥物 quick
| Class | 代表藥物 | 主要副作用 |
|---|---|---|
| IMiD | Lenalidomide (R), Pomalidomide (P), Thalidomide (T) | DVT, neutropenia, rash, lenalidomide → 2nd cancer |
| Proteasome i | Bortezomib (V) - SC; Carfilzomib (K) - IV; Ixazomib (I) - oral | V → PN, zoster;K → 心臟(CHF, HTN) |
| Anti-CD38 mAb | Daratumumab (Da/D) - SC; Isatuximab (Isa) - IV | Infusion reaction;type-and-screen interference |
| Anti-SLAMF7 | Elotuzumab (E) | Infusion reaction |
| BCMA ADC | Belantamab mafodotin | Eye toxicity (keratopathy) — 監測 |
| SINE | Selinexor (S) | Nausea, fatigue, thrombocytopenia, hyponatremia |
| HDAC i | Panobinostat (Pa) | Diarrhea, prolonged QT |
| Alkylator | Melphalan (M, 200 mg/m² ASCT 條件下), Cyclophosphamide, Bendamustine | Myelosuppression, t-MN |
| BCMA CAR-T | Ide-cel (Abecma), Cilta-cel (Carvykti) | CRS, ICANS, prolonged hypogamma |
| Bispecific antibody | Teclistamab (BCMA), Elranatamab (BCMA), Talquetamab (GPRC5D) | CRS (mostly mild), ICANS, infection |
116.2.0.2.5 Frontline 邏輯
| Patient | Regimen |
|---|---|
| Transplant-eligible (< 70, fit) | Dara-VRd × 4–6 (or Isa-KRd) → ASCT → Lenalidomide maintenance |
| Transplant-eligible high-risk | 同上 + len + bortezomib (or ixazomib) maintenance |
| Transplant-ineligible | DRd (MAIA); 或 modified VRd-lite |
116.2.0.2.6 R/R 治療 (≥ 2 lines)
| 已用 | 換 class |
|---|---|
| 已 PI + IMiD | + Anti-CD38 (DKd, Isa-Pd, Dara-Pd) |
| 已 PI + IMiD + anti-CD38 | CAR-T (Ide-cel, Cilta-cel) or Bispecific |
| 已 4+ lines, 包括 anti-CD38 | Bispecific (teclistamab, elranatamab, talquetamab) or belantamab mafodotin |
116.2.0.2.7 22E 重要試驗
| 試驗 | Regimen | 結論 |
|---|---|---|
| GRIFFIN | Dara-VRd vs VRd transplant-eligible | Dara-VRd 較深 response, ↑ MRD− |
| MAIA | DRd vs Rd transplant-ineligible | DRd median PFS > 60 mo(vs 34 mo Rd),OS benefit |
| IsKia | Isa-KRd | 高 MRD− rate transplant-eligible |
| GMMG-HD7 | Isa-VRd | 同 frontline 試驗 |
| DETERMINATION | 早 ASCT vs 延遲 ASCT after VRd | 早 ASCT 較長 PFS, OS 同 |
| CARTITUDE-1 | Cilta-cel R/R | ORR 98%, CR 82% |
| CARTITUDE-4 | Cilta-cel 二線 | 取代多種 standard regimen |
| MajesTEC-1 | Teclistamab R/R | ORR ~ 63% |
| MagnetisMM | Elranatamab R/R | ORR ~ 60% |
| MonumenTAL | Talquetamab GPRC5D R/R | ORR ~ 70% |
116.2.0.3 🎯 自我檢測 20 題
- MM 經典 CRAB? → Ca↑ / Renal / Anemia / Bone lytic
- IMWG 2014 MDE? → marrow ≥ 60%, FLC ratio ≥ 100, MRI focal ≥ 5mm
- MM 影像 gold standard? → WBLDCT / MRI / PET-CT(plain x-ray 過時)
- R-ISS Stage III 條件? → β2M ≥ 5.5 + (LDH ↑ or high-risk cytogenetics)
- High-risk cytogenetics? → del(17p), t(4;14), t(14;16), +1q
- 標準 risk 對 venetoclax 敏感的 cytogenetic? → t(11;14)
- Transplant-eligible frontline 22E? → Dara-VRd → ASCT → Lenalidomide maintenance
- Transplant-ineligible 22E frontline? → DRd (MAIA)
- MGUS 進展率? → ~ 1%/年
- SMM 進展率? → ~ 10%/年(前 5 年)
- High-risk SMM 2/20/20? → M > 2g/dL, FLC > 20, marrow > 20%
- Solitary plasmacytoma 治療? → Local RT 40 Gy
- WM 標記 mutation? → MYD88 L265P > 90%
- WM hyperviscosity 急救? → Plasmapheresis
- WM 治療首選(MYD88+ CXCR4 wt)? → Ibrutinib + rituximab
- WM rituximab 注意? → IgM flare(先 plasmapheresis 或延後 R)
- BCMA CAR-T 兩種? → Ide-cel (Abecma), Cilta-cel (Carvykti)
- Talquetamab 標靶? → GPRC5D × CD3(不是 BCMA)
- POEMS 骨病灶特徵? → Sclerotic(osteoblastic)(不是 MM 的 lytic)
- POEMS hallmark cytokine? → VEGF ↑↑
116.2.0.4 🩺 PGY OSCE 場景
116.2.0.4.1 Scenario 1:65 歲男 incidental SPEP IgG 1.5 g/dL + 無症狀
- Workup:
- 詳細病史 (B sx, bone pain, infection)
- CBC + Cr + Ca + albumin + LDH + β2M
- SPEP + UPEP + immunofixation + serum FLC
- 24-hr urine total protein + light chain
- Marrow biopsy + flow + FISH(決定是否 ≥ 10% PC)
- WBLDCT or MRI
- 確認 MGUS(< 10% PC, 無 CRAB/MDE)
- → W&W:每年 SPEP + CBC + Cr + Ca
- 衛教:新症狀(骨痛、體重 ↓、感染)回診
116.2.0.4.2 Scenario 2:解釋 ASCT 流程給家屬
- Stem cell collection:lenalidomide 6 個月內收集(避免 G-CSF 釋放受影響)
- High-dose melphalan 200 mg/m² IV
- 自體幹細胞 reinfusion
- 7–14 日 nadir period(住院 + 隔離 + 抗生素)
- Engraftment 約 2 週
- 60–100 日 recovery
- Maintenance therapy 從 day +90 開始
- 預期 25–40% 額外 CR + 延長 PFS(OS benefit 有但不大)
116.2.0.4.3 Scenario 3:CAR-T 前後監測
- Pre: 完整 disease assessment + comorbidity 評估 + IVIg 補充
- Lymphodepletion: fludarabine + cyclophosphamide × 3 d
- CAR-T infusion: outpatient(多醫院 inpatient × 2 wk)
- CRS 監測 (day 1–14):fever → tocilizumab + steroid; ICU 必要
- ICANS 監測:意識改變 → ICU + steroid
- Long-term: prolonged hypogamma → IVIg, B-cell aplasia, infection prophy
- 二次 cancer monitor
116.2.0.4.4 Scenario 4:62 歲男 dizziness + 視力模糊 + 鼻血 + IgM 5.5 g/dL + Hb 9 + 眼底 retinal vein 段化
- Hyperviscosity emergency (Waldenström’s)
- 緊急 plasmapheresis(每日 1.5–2 容積,第一日效果立竿見影)
- BMBx + MYD88 L265P + CXCR4 status
- → Ibrutinib 420 mg/日 + rituximab(MYD88+ wt CXCR4 反應好)
- 注意 rituximab IgM flare:第一個療程先做 plasmapheresis 或延後 rituximab introduction
- 衛教:避免脫水 + 避免鼻塞拍打(出血)+ 早期就醫 if neurological 變化