A 52-year-old shopkeeper has a painless right neck swelling that has grown over 6 weeks. An FNA elsewhere said "lymphoproliferative lesion, suggest biopsy". He has no fever, sweats or weight loss and works normally.
Before you open the answer: what is the likely diagnosis, what must be done before treatment, and what is the plan?
Show the line of management
- Diagnose
Excision of the node: DLBCL, GCB type by Hans (CD10 positive); MYC FISH negative; EBER negative.
- Stage and score
PET-CT: right cervical nodes only, largest 4 cm. Stage I, LDH normal, ECOG 0, age 52: IPI 0. CNS-IPI 0. Echo normal.
- Before treatment
HIV and HCV negative. HBsAg negative, anti-HBc positive, HBV DNA undetectable: entecavir prophylaxis during rituximab and for at least a year after, with hepatology.
- Treat
Non-bulky limited stage: R-CHOP × 3, then PET3 Deauville 2 → one more cycle, four in total (S1001; FLYER showed four cycles match six). End-of-treatment PET Deauville 1: follow-up every 3–6 months, no routine scans.
Teaching points
- FNA can only raise the suspicion; excise the node.
- Non-bulky limited stage: PET after three cycles; negative → four cycles in total.
- Anti-HBc alone carries moderate risk with rituximab: give prophylaxis.
See: Sections 03, 05 and 06, Algorithm 2.
A 64-year-old retired teacher has 2 months of abdominal fullness, 7 kg weight loss and night sweats. She is up and about but cannot work (ECOG 2). LDH is twice normal; uric acid is high.
Before you open the answer: what is the likely diagnosis, what must be done before treatment, and what is the plan?
Show the line of management
- Diagnose
CT-guided cores of a 9 cm retroperitoneal mass: DLBCL, non-GCB; MYC and BCL2 protein high (double-expressor); FISH shows no rearrangement.
- Stage and score
PET-CT: retroperitoneal mass, left kidney and adrenal, bone marrow: stage IV. IPI 5. CNS-IPI 6 (age, LDH, ECOG, stage, extranodal sites, kidney/adrenal): MRI brain and lumbar puncture with flow cytometry are negative.
- Before cycle 1
Steroid pre-phase; IV fluids; rasburicase after a normal G6PD (bulky, high LDH and uric acid); HBV, HCV, HIV negative; echo normal; G-CSF planned.
- Treat
Pola-R-CHP × 6 (non-GCB, IPI 2–5; affordable through her insurance). CNS prophylaxis discussed: unproven benefit, high risk; she chooses high-dose methotrexate after systemic therapy. End-of-treatment PET Deauville 3.
Teaching points
- Kidney or adrenal disease adds a CNS-IPI point; score it on day one.
- Double-expressor is still DLBCL, NOS, but adds risk.
- Lysis prophylaxis starts before the first dose.
See: Sections 04 and 06, Figures on CNS risk and first-line evidence, Algorithms 1 and 2.
An 83-year-old retired farmer with type 2 diabetes lives with his son and is independent in daily activities but walks slowly. He has had 6 weeks of tiredness and painless neck and groin nodes. Creatinine and LVEF are normal.
Before you open the answer: what is the likely diagnosis, what must be done before treatment, and what is the plan?
Show the line of management
- Diagnose
Neck node excision: DLBCL, GCB type; MYC FISH negative.
- Assess
PET-CT stage III; IPI 3. Simplified geriatric assessment: unfit (slow gait, several comorbidities), not frail.
- Prepare
Prednisolone pre-phase for a week (sugar monitored, insulin adjusted); HBV screen negative; G-CSF arranged; family taught to report fever the same day.
- Treat
R-mini-CHOP × 6 every 21 days. Complete metabolic response. Visits every 3 months; blood pressure and sugar with his family doctor.
Teaching points
- Age alone is not a reason to withhold curative treatment.
- Steroid pre-phase lowers first-cycle toxicity in older patients.
- R-mini-CHOP gives about 59% 2-year survival over 80.
See: Sections 03 and 06, Figure on special settings, Algorithm 2.
A 27-year-old accountant has 6 weeks of dry cough and, for a week, swelling of her face and neck in the mornings. Chest X-ray shows a wide mediastinum; CT shows a 12 cm anterior mediastinal mass compressing the superior vena cava.
Before you open the answer: what is the likely diagnosis, what must be done before treatment, and what is the plan?
Show the line of management
- Get tissue safely
Anaesthetist reviews the airway; anterior mediastinotomy biopsy before any steroid (needle cores are often crushed): primary mediastinal large B-cell lymphoma (CD20+, CD30 weak, PD-L1+, CD10−); no MYC rearrangement.
- Stage
PET-CT: stage II bulky. Echo normal. Fertility counselling; pregnancy test negative.
- Choose
Two acceptable options: R-CHOP × 6 then mediastinal RT, or DA-EPOCH-R × 6 without RT. The RT field would include both breasts, so she chooses DA-EPOCH-R. The SVC symptoms settle within the first cycle.
- After treatment
A 4 cm residual mass, Deauville 2: no radiotherapy. Follow-up for relapse in the first two years; if she relapses early, CAR-T; later, salvage and transplant or PD-1 blockade.
Teaching points
- PMBL is a distinct entity of young adults, mostly women; a surgical biopsy is preferred.
- R-CHOP + RT and DA-EPOCH-R alone are both acceptable: choose by the RT field.
- A residual mass is common and often fibrosis: PET decides.
See: Sections 02, 05 and 06, Algorithm 3.
A 22-year-old student had 3 weeks of abdominal pain; an ileocaecal mass was found at surgery for suspected appendicitis and biopsied. Two days later his creatinine and potassium are rising.
Before you open the answer: what is the likely diagnosis, what must be done before treatment, and what is the plan?
Show the line of management
- Diagnose
Burkitt lymphoma: monomorphic medium cells, starry sky, Ki-67 near 100%, CD10+, BCL2−, t(8;14) MYC::IGH. HIV negative.
- Protect the kidneys
Tumour lysis: IV fluids, rasburicase after a normal G6PD test, correct potassium and phosphate; kidney team on standby.
- Stage
PET-CT: abdominal disease, marrow negative; lumbar puncture with flow: no CNS disease. BL-IPI 1 (LDH over three times normal). Sperm banking the same week.
- Treat
R-CODOX-M/R-IVAC with intrathecal prophylaxis, rituximab from cycle 2; admitted for each cycle. Complete metabolic response; visits every 3–4 months in the first year.
Teaching points
- Think Burkitt in a young man with a fast abdominal mass.
- Lysis prophylaxis and the LP come before chemotherapy.
- R-CHOP alone under-treats Burkitt; rituximab improves survival.
See: Section 06 (Burkitt), Figure on Burkitt, Algorithm 3.
A 47-year-old teacher with stage IV DLBCL had a complete response to R-CHOP × 6. Seven months later new axillary and abdominal nodes appear and his LDH rises.
Before you open the answer: what is the likely diagnosis, what must be done before treatment, and what is the plan?
Show the line of management
- Confirm
Axillary node biopsy: DLBCL, CD19 positive; PET: stage III. Fit, ECOG 1.
- Choose
Relapse within 12 months: CD19 CAR-T is preferred over salvage and transplant (ZUMA-7, TRANSFORM). In India, NexCAR19 (approved 2023); cost and insurance or scheme cover discussed with the family and the hospital.
- Bridge
Cells collected; R-GemOx while the product is made (no CD19-directed drugs before CD19 CAR-T). Infection prophylaxis.
- After CAR-T
Grade 1 CRS (fever) on day 2 settles with paracetamol and fluids; daily ICE score stays normal. Complete metabolic response at 3 months. If CAR-T had not been possible: glofitamab-GemOx (STARGLO) or salvage then transplant.
Teaching points
- Early relapse after R-CHOP does badly with salvage chemotherapy: refer for CAR-T early.
- Know CRS (fever first) and ICANS (confusion, writing change) before you refer.
- Indian CAR-T costs about a tenth of the price abroad.
See: Section 06 (relapsed), Figure on relapse, Algorithm 4.
A 39-year-old driver has 2 months of fever, 10 kg weight loss and enlarged neck and abdominal nodes. HIV is diagnosed during the work-up (CD4 110, high viral load); he has never taken antiretroviral therapy.
Before you open the answer: what is the likely diagnosis, what must be done before treatment, and what is the plan?
Show the line of management
- Diagnose
Neck node excision: DLBCL, GCB type, EBER positive; MYC FISH negative. PET-CT stage IV; CNS-IPI 3; LP negative.
- Start HIV care
Antiretroviral therapy with the HIV team, choosing drugs without major interactions; co-trimoxazole; HBV and TB screening.
- Treat
CD4 above 50: rituximab is added. R-CHOP × 6 (DA-EPOCH-R is an alternative) with G-CSF. Antiretroviral therapy continues throughout.
- Outcome
Complete metabolic response; CD4 rises over the following months. Outcomes now match those of people without HIV.
Teaching points
- Test every patient with an aggressive lymphoma for HIV.
- Continue antiretroviral therapy during chemotherapy; check interactions.
- Rituximab when CD4 is 50 or more.
See: Section 06 (special settings), Figure on special settings, Algorithm 3.