Stage IV ROS1 Lung Adenocarcinoma: Luna's Patient Story

Patient Info: Luna, Female, 50s | Stage IV

Biomarkers: ROS1 rearrangement; EGFR negative; ALK negative

Metastatic Site: liver; bones

Luna had Stage IV ROS1-positive lung adenocarcinoma with liver and bone metastases. After progression on initial chemotherapy, crizotinib led to tumor shrinkage and controlled her cancer for almost 12 years as of March 2025.

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Extended-stage small cell lung cancer with breast metastasis: complete response after pembrolizumab

Patient Info: Anonymized, Female, 60s | Stage IV

Biomarkers: TMB-high, microsatellite stable; TP53/PTEN mutations, and SOX2/PIK3CA/FGF12 amplifications.

Metastatic Site: breast

As of March 2025, she had maintained complete response for more than 18 months on pembrolizumab monotherapy after prior cisplatin/irinotecan response.

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Metastatic Lung Cancer With Pulmonary Embolism, Cardiac Tamponade, and Recurrent Stroke

Patient Info: Anonymized, female, 70+ | Stage IV

Metastatic Site: leptomeninges

After the lung cancer was diagnosed, she developed leptomeningeal metastases and recurrent ischemic strokes and died the following month.

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EGFR-Mutant Lung Adenocarcinoma That Transformed to Small Cell Lung Cancer

Patient Info: Anonymized, female, 40s | Stage IV

Biomarkers: EGFR exon 19 deletion; acquired EGFR T790M mutation

Metastatic Site: liver

The cancer progressed after transformation to small cell lung cancer, and she died 49 months after the original diagnosis.

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Etoposide Desensitization After Cardiac Arrest in Metastatic Small Cell Lung Cancer

Patient Info: Anonymized, female, 60s | Stage IV

Metastatic Site: brain

After later tumor progression and further systemic treatment, she died in September 2021 from multifactorial progressive leukoencephalopathy, meningopyoventriculitis, and brain atrophy.

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Stage 4 lung cancer: managing pembrolizumab-induced myasthenia gravis

Patient Info: Anonymized, Female, 70+ | Stage IV

Biomarkers: Anti-acetylcholine receptor antibody elevated; TSH elevated during immune-related adverse event workup; cancer biomarkers not reported

At 9 months after the immune-related myasthenia gravis presentation, lung cancer remained in complete response while she continued low-dose prednisolone, pyridostigmine, levothyroxine, and nighttime NIV.

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Stage 4 lung adenocarcinoma with RET fusion responding to pralsetinib

Patient Info: Anonymized, Male, 60s | Stage IV

Biomarkers: RET fusion

Metastatic Site: pleura

As of March 2025, he had recovered from grade 3 Pneumocystis jirovecii pneumonia, restarted pralsetinib, and had no progressive disease or recurrence of adverse events over 13 months.

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Stage 4 small cell lung cancer with paraneoplastic neurological syndrome

Patient Info: Anonymized, Female, 60s | Stage IV

Biomarkers: Paraneoplastic antibody panel positive for anti-Hu, anti-AMPH, anti-Ri

Metastatic Site: left axillary lymph nodes

Over 2 years of follow-up, CT showed stable complete response, tumor markers stayed normal, no new metastases appeared, and neurological symptoms did not worsen.

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Fatal Multiorgan Failure After Pembrolizumab-Based Treatment for Metastatic Lung Cancer

Patient Info: Anonymized, female | Stage IV

She died less than 12 hours after hospital presentation with rapidly progressive multiorgan failure one week after the first pembrolizumab-based treatment cycle; immune-related toxicity was strongly suspected, although the rapid decline limited full evaluation.

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Lung Adenocarcinoma With Rare Skin Metastasis to the Neck

Patient Info: Anonymized, male, 50s | Stage IV

Metastatic Site: neck skin

The lung cancer later spread to the neck skin, and he died during the following year after stopping further treatment.

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Advanced Non-Small Cell Lung Cancer With ERBB2 and TP53 Mutations

Patient Info: Anonymized, male, 50s | Stage IV

Biomarkers: ERBB2 exon 20 Y772-A775dup mutation; TP53 mutation; PD-L1 TPS 0%

Metastatic Site: liver, bone, both lungs

Imaging after treatment showed stable disease, and he remained in good condition while continuing maintenance pemetrexed and bevacizumab.

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Stage III small cell lung cancer with paraneoplastic optic disc swelling

Patient Info: Anonymized, Male, 70+ | Stage III

Biomarkers: anti-CV2/CRMP-5 positive; anti-Hu positive

Eighteen months after diagnosis, there was no evidence of cancer recurrence. Optic disc swelling had fully resolved after steroid treatment, with preserved visual function.

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Metastatic Lung Adenocarcinoma With a Serious Immune-Therapy Pituitary Complication

Patient Info: Anonymized, male, 60s | Stage IV

Biomarkers: No detected EGFR, ALK, ROS1, RET, MET or HER2 alterations

Metastatic Site: brain, meninges, skull, bone, pituitary

The cancer had progressed to extensive brain, skull and bone involvement after several treatments. Steroid treatment improved the severe thirst, high urine output and other symptoms from immune-related hypophysitis.

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Limited-stage SCLC with paraneoplastic syndrome: complete response

Patient Info: Anonymized, Female, 50s

Biomarkers: SCLC markers: TTF-1 and synaptophysin positive, Ki-67 ~85%; anti-CV2/CRMP5 and anti-SOX1 antibodies positive.

Remission at 6 years after carboplatin/etoposide chemotherapy, thoracic radiation, and prophylactic cranial irradiation for limited-stage SCLC with paraneoplastic cerebellar degeneration.

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Stage IV Squamous Lung Cancer Complicated by an Esophageal-Mediastinal Fistula

Patient Info: Anonymized, male, 70+ | Stage IV

Metastatic Site: brain, bone

Four months after the fistula was treated conservatively, imaging showed the fistula had resolved and the lung tumor and metastatic hilar nodes had decreased despite no additional antitumor treatment during that interval.

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Small Cell Lung Cancer With Rapidly Progressive Paraneoplastic Neuropathy

Patient Info: Anonymized, male, 50s | Stage IV

Metastatic Site: adrenal glands

Despite a partial tumor response, severe ascending motor and sensory neuropathy progressed to respiratory compromise. He chose supportive care and died 3 weeks after the neurologic symptoms began.

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Therapy-related acute promyelocytic leukemia during lung cancer treatment

Patient Info: Anonymized, Male, 70+

Biomarkers: Therapy-related APL with t and PML/RARA fusion; CD33 positive

The patient died 6 hours after symptom onset on day 6 of induction therapy for therapy-related acute promyelocytic leukemia.

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Stage IIB squamous cell lung cancer: pathological complete response after chemo-immunotherapy and surgery

Patient Info: Anonymized, Male, 60s | Stage II

Biomarkers: PD-L1 >85%; P40-positive; TTF-1-negative; CEA 1.2 ng/mL; cytokeratin 19 fragments 1.7 ng/mL; pro-gastrin-releasing peptide 54 pg/mL

No recurrence for 1 year and 7 months without further treatment after transbronchoscopic resection, pembrolizumab-based chemoimmunotherapy, pneumonitis management, and sleeve resection showing pathological complete response.

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Long-Lasting Pembrolizumab Response in Stage III Lung Adenocarcinoma With STK11, TP53 and RB1 Mutations

Patient Info: Anonymized, male, 60s | Stage III

Biomarkers: TP53 and RB1 mutations; high tumor mutational burden; PD-L1 70%

Pembrolizumab produced a partial response within 3 months, improved his breathing and fatigue, and was continued for more than 2 years without significant immune-related toxicity.

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Stage 3 squamous cell lung cancer: major response to chemo-immunotherapy

Patient Info: Anonymized, Male, 70+ | Stage III

Biomarkers: PD-L1 30-40%

After neoadjuvant chemoimmunotherapy and sleeve right lower lobectomy, pathology showed major pathological response with negative margins, and no metastasis or recurrence was observed 6 months after surgery.

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Stage IIIA squamous lung cancer: surgery after nivolumab-related complications

Patient Info: Anonymized, Female, 70+ | Stage II

Biomarkers: PD-L1 TPS 99% before treatment; PD-L1 TPS 70% in postoperative hilar lymph node; TPOAb and TgAb normal during thyroiditis workup

As of January 2025, the patient had no recurrence 7 months after neoadjuvant nivolumab/carboplatin/paclitaxel and 5 months after thoracoscopic right upper lobectomy with lymph node dissection.

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Stage IVA pulmonary squamous cell carcinoma with nasal and bone metastases: response after paclitaxel, carboplatin, and tislelizumab

Patient Info: Anonymized, Male, 50s | Stage IV

Biomarkers: PD-L1 15%

Metastatic Site: nasal region/skin; bone (left acromion)

The lung tumor and nasal metastasis regressed after paclitaxel/carboplatin plus tislelizumab, symptoms improved, no immune-related pneumonitis/colitis/hepatitis occurred, and progression-free survival exceeded 12 months.

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Stage 4 lung cancer: complete response to chemoimmunotherapy and surgery

Patient Info: Anonymized, Male, 50s | Stage IV

Biomarkers: EGFR exon 20 duplication with PD-L1 TPS 70%; P40/CK5/6 positive squamous markers; Ki-67 60%.

Metastatic Site: right adrenal gland; possible adjacent…

As of May 7, 2024, CT follow-up showed no evidence of disease after chemoimmunotherapy, conversion surgery with pathologic complete response, and pembrolizumab maintenance.

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Stage IV lung cancer: brain metastasis complete response after chemoimmunotherapy

Patient Info: Anonymized, Male, 60s | Stage IV

Biomarkers: KRAS-mutated; BRG-1 partial loss; PD-L1 TPS 5%; CPS 20

Metastatic Site: brain (right cerebellar hemisphere)

The right cerebellar brain metastasis completely resolved and chest CT showed only postsurgical changes after carrelizumab plus paclitaxel/carboplatin; immune-mediated adrenal insufficiency improved with systemic glucocorticoids.

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