MODERN DIAGNOSIS AND TREATMENT OF LUNG CANCER Department of Thoracic Surgery, General and Oncology Surgery Medical University in Łódź Author: M.D. Sławomir Jabłoński LUNG CANCER EPIDEMIOLOGY ONE OF THE MOST FREQUENT MALIGNANT NEOPLASMS IN HUMANS FIRST cause of death in males THIRD cause of death in females EUROPE : 21% of all cancer cases, 29% of all cancer deaths POLAND NEW CASES DEATHS 20 000/year nearly 20 000/year M:F ratio = 5:1 LUNG CANCER - DEFINITION Primary lung cancer is a malignant neoplasm originating from epithelial cells of bronchial tree or other cells of the lung tissue Lung cancer is divided into two large groups LUNG CANCER NON-SMALL CELL LUNG CANCER 75% PLANOEPITHELIAL CARCINOMA 50% ADENOCARCINOMA 20% LARGE CELL CARCINOMA 20% MIXED CARCINOMA CARCINOID BRONCHIALVEOLAR CARCINOMA 10% SMALL CELL LUNG CANCER 25% MIXED OAT CELL CARCINOMA INTERMEDIATE CELL CARCINOMA OAT CELL CARCINOMA CHARACTERISTICS OF PATHOLOGICAL TYPES OF LUNG CANCER TYPE OF CANCER MAIN TYPE OF CELLS MICROCELLUL AR CARCINOMA Small cells; subtypes ; oat cells, medial FREQUENCY 20- 25% LOCATION HISTOLOGY CENTRAL Undifferentiate d giant cells 10% Giant cells PERIPHERAL NON- MICROCELLULAR CARCINOMAS Adenoidal cells; Subtype: bronchioalveolar 25-30% planoepithel ial 30-35 % PERIPHERAL CENTRAL – large and medial bronchi Adenoidal formations; Intracellular mucus Intercellular connections (desmosoms) Keratinous pearls TIME OF DUPLICATIO N OF TUMOR MASS ( IN DAYS) 33 MOTHER CELLS Neuroectodermal Kulczycki cells 100 187 Goblet cells 100 Multipotential cells SMALL CELL LUNG CANCER Definition Small cell lung cancer (SCLC) is a fast-growing type of lung cancer. It tends to spread much more quickly than non-small cell lung cancer. Causes About 15% of all lung cancer cases are small cell lung cancer. Small cell lung cancer is slightly more common in men than women. Smoking almost always causes small cell lung cancer. Small cell is the most aggressive form of lung cancer. It usually starts in the air tubes (bronchi) in the center of the chest. These tumors can rapidly spread to other parts of the body, including the brain, liver, and bone. SMALL CELL LUNG CANCER - DIFFERNECE Small cell carcinoma is different from the rest of histopathological types of lung cancer because of several biological and clinical features such as: High speed of proliferation Short time of duplication of the tumor mass Early metastases by blood stream Sensitivity to cytostatic treatment and ionic radiation Bad outcome of surgical treatment Considering above mentioned features, lung cancer in clinical practise is often simply divided into two groups: Non-small cell carcinoma ( NSCC) Small cell carcinoma (SCC) LUNG CANCER – RISK FACTORS CARCINOGENIC FACTORS : SMOKING !!! ( 60 times higher risk when smoking > 40 cigarettes a day) OCCUPATIONAL RISK FACTORS NICKEL, CHROMIUM, ASBESTOS, ARSENIC HYDROCARBONIC COMPOUNDS RADIOACTIVE METALS ENVIORNMENTAL POLLUTION TUBERCULOSIS AND CICATRICAL CHANGES OF THE LUNG HORMONAL FACTOR ( difference in occurrence in males and females) IMMUNOLOGICAL DEFECTS GENETIC FACTORS ( disorders in chromosome 3, K-ras,HER-2/neu, p53, Rb) LUNG CANCER – CHARACTER OF GROWTH PERIPHERAL CARCINOMA ( often adenoidal carcinoma) CENTRAL CARCINOMA ( growth in large bronchi) LUNG CANCER CHARACTER OF GROWTH METASTATIC CARCINOMA ( numerous focal changes in both lungs) SMALL CELL LUNG CANCER - staging Limited stage Cancer is found only in one lung and in nearby lymph nodes. (Lymph nodes are small, bean-shaped structures that are found throughout the body. They produce and store infection-fighting cells.) Extensive stage Cancer has spread outside of the lung where it began to other tissues in the chest or to other parts of the body. Recurrent stage Recurrent disease means that the cancer has come back (recurred) after it has been treated. It may come back in the lungs or in another part of the body. NON-SMALL CELL LUNG CANCER TNM STAGING TNM CLASSIFICATION T (tumor feature) TIS T1 T2 T3 carcinoma in situ T4 tumor of any size infiltrating mediastinum, heart, large vessels, trachea, esophagus, vertebral body, tracheal bifurcation. tumor up to 3 cm surrounded by the lung tissue tumor larger than 3 cm, more than 2 cm from tracheal bifurcation. tumor of any size infiltrating the thoracic wall, diaphragm, mediastinal pleura. Tumor less than 2 cm from tracheal bifurcation. Presence of neoplastic cells in the pleural liquid. LUNG CANCER – (N feature positive) N1 LYMPHATIC NODES OF HIALUS N2 MEDIASTINAL LYMPHATIC NODES N3 LYMPHATIC NODES OF THE OPPOSITE SIDE AND SUPRACLAVICULAR LUNG CANCER – METASTASES (M feature) METASTASES OF THE LUNG CANCER: TOPICAL: ANATOMICAL STRUCTURES OF MEDIASTINUM PLEURA THORACIC WALL REGIONAL LYMPHATIC NODES: LUNG HIALUS - N1 MEDIASTINAL - N2 HIALUS OF THE OPPOSITE LUNG – N3 LUNG CANCER – METASTASES (M feature) VISCERAL METASTASES : HEPAR BONES, BONE MARROW BRAIN SUPRARENAL GLANDS SUBCUTANEOUS Lung nodes T1 tumor up to 3cm surrounded by the lung tissue T2 tumor larger than 3 cm, more than 2 cm from tracheal bifurcation. T3 tumor of any size infiltrating the thoracic wall, diaphragm, mediastinal pleura. Tumor less than 2 cm from tracheal bifurcation. T4 tumor of any size infiltrating mediastinum, heart, large vessels, trachea, esophagus, vertebral body, tracheal bifurcation. Presence of neoplastic cells in the pleural liquid. Stage T4N3 CLINICAL ASSESSMENT OF LUNG CANCER PROGRESSION CLINICAL GRADES OF PROGRESSION Grade 0 Grade IA Grade IB Grade IIA Grade IIB Tis N0 M0 T1 N0 M0 T2 N0 M0 T1 N1 M0 T2 N1 M0, T3 N0 M0 Grade IIIA Grade IIIB Grade IV T1 N2 M0, T2 N2 M0, T3 N1 M0, T3 N2 M0 every T N3 M0, T4 every N M0 every T, every N, M1 GOOD RESULTS OF SURGICAL TREATMENT Prognosis LUNG CANCER DIAGNOSTICS SUBJECT EXAMINATION HISTORY: FAMILY OCCERRENCE OF NEOPLASM EXPOSITION TO SMOKE FROM CIGARETTES OCCUPATIONAL EXPOSURE LUNG CANCER DIAGNOSTICS SUBJECT EXAMINATION SYMPTOMS DEPENDENT ON PRIMARY TUMOR AND TOPICAL EXPANSION OF NEOPLASM COUGH (CHANGE OF COUGH IN SMOKERS) HEMOPTYSIS DYSPNOEA PAIN IN THE CHEST RECURRENT OR LONG-LASTING PNEUMONIA HOARSENESS DYSPHAGIA SHOULDER PAIN LUNG CANCER DIAGNOSTICS SUBJECT EXAMINATION GENERAL SYMPTOMS: OSTEOARTICULAR PAINS GENERAL WEAKNESS LOSS OF BODY MASS INCREASE IN BODY TEMPERATURE OTHER SYMPTOMS OF PARANEOPLASTIC SYNDROMES LUNG CANCER DIAGNOSTICS PHYSICAL EXAMINATION (we can identify) WORSENING OF BRONCHIAL PATENCY ENLARGEMENT OF LYMPHATIC NODES PLEURAL EXUDATE PERICARDIAL EXUDATE SUPERIOR CAVAL VEIN SYNDROME HEPAR ENLARGEMENT THROMBOPHLEBITIS PAIN IN THE CHEST ON PRESSURE PARANEOPLASTIC SYNDROMES OCCUPATION OF CENTRAL OR PERIPHERAL NERVOUS SYSTEM LUNG CANCER CLINICAL SUSPICION OF HIGH PROGRESSION OF LUNG CANCER: CLINICAL SYMPTOMS: hoarseness (palsy of recurrent laryngeal nerve, infiltration on aortic arch) enlargement of supraclavicular lymphatic nodes ( occupation of N3 nodes) superior caval vein syndrome ( tumor infiltration or pressure of packet of enlarged lymphatic nodes on a superior caval vein) neurological symptoms ( metastases in brain) LUNG CANCER SUSPICION OF HIGH PROGRESSION OF LUNG CANCER: EXAMINATION RESULTS: in X-ray – atelectasis of the whole lung presence of neoplastic cells in pleural liquid ( T4 feature ) in bronchoscopy infiltration of tumor < 2 cm from tracheal bifurcation shoulder pain ( Pancoast tumor – neoplasm originating from lung apex infiltrating ribs, subclavicular vessels, shoulder plexus or spine) enlargement of the lymphatic nodes of N2 or N3 group in CT PARANOEPLASTIC SYNDROMES They are a group of clinical symptoms of the neoplasm resulting from secretion of substances of different biological effects by the neoplasms and not connected with direct influence of the tumor or metasteses on the neighboring tissues. Clinical symptoms manifest in about 50% of patients. Anorexia-cachexia syndrome (the most frequent) neuropathies and encephalopathies in patients without metastatic changes in nervous system, Eaton-Lambert pseudomiasthenic syndrome Skin changes – so called revelators of the neoplastic disease ( dermatomyositis, lupus erythematosus, acanthosis nigricans, sclerodermia) Hypercoagulability of blood and wandering thrombophlebitis + other hematological disorders (anemia, thrombocytopenia) Ectopic secretion of ACTH syndrome (up to 20% of patients with Cushing syndrome) Incorrect secretion of hormones syndromes – antidiuretic hormone (ADH), parathormone (hiperkalcemia), serotonin (carcinoid syndrome) and others Hypertrophic pulmonary osteoarthropathy (bilateral edema and osteoarticular pains of forearms and shanks) DIAGNOSTICS OF LUNG CANCER EXAMINATIONS USED TO ASSESSMENT OF PROGRESSION OF LUNG CANCER: SUBJECT AND PHYSICAL EXAMINATION CHEST X-RAY CHEST COMPUTER TOMOGRAPHY (CT) ULTRASOUND EXAMINATION OR CT OF ABDOMEN CT OR MR (MAGNETIC RESONANCE) OF BRAIN SCYNTYGRAPHY OF BONES POSITRON EMISSION TOMOGRAPHY (PET) CHEST COMPUTER TOMOGRAPHY (CT) DIAGNOSTICS OF LUNG CANCER INVASIVE EXAMINATIONS - ASSESSMENT OF PROGRESSION OF LUNG CANCER : BRONCHOFIBEROSCOPY TRANSESOPHAGEAL OR TRANSBRONCHIAL ULTRASOUND EXAMINATION MEDIASTINOSCOPY MEDIASTINOTOMY BIOPSY OF SUPRACLAVICULAR LYMPHATIC NODES ( DANIELS BIOPSY) VIDEOTHORACOSCOPY DIAGNOSTIC-THERAPEUTIC THORACOTOMY Mediastinoscopy Mediastinoscopy is a surgical procedure to examine the inside of the upper chest between and in front of the lungs (mediastinum). During a mediastinoscopy, a small incision is made in the neck just above the breastbone or on the left side of the chest next to the breastbone. Then a thin scope (mediastinoscope) is inserted through the opening. A tissue sample biopsy can be collected through the mediastinoscope and then examined under a microscope for lung problems, such as infection, inflammation, or cancer. DIAGNOSTICS OF LUNG CANCER CLASSICAL RADIOLOGICAL EXAMINATIONS Changes observed in radiograms: ROUND SHADOW OF THE LUNG CHANGE OF OUTLINE OF HILUS AND/OR MEDIASTINUM LOCAL DISORDERS IN AIRITY OF LUNG TISSUE INFILTRATION CHANGES OF LUNG TISSUE COMPUTER TOMOGRAPHY Possibilities of examination: Assessment of location, size and consistency of the tumor Assessment of the neighboring lung tissue Primary assessment of mediastinal lymphatic nodes Assessment of occupation of neighboring organs ( thoracic wall, large vessels, esophagus, diaphragm, pericardium) DIAGNOSTICS OF LUNG CANCER PRIMARY TUMOR ASSESSMENT: ENDOSCOPY OF THE BRONCHIAL TREE (location of tumor, distance from carina, state of lymphatic nodes of bifurcation, possibility of taking biopsy specimens to histopathological examination) RADIOLOGICAL EXAMINATIONS ( classical X-ray, CT, NMR) CYTOLOGICAL EXAMINATION OF LIQUID FROM PLEURAL OR PERICARDIAL CAVITY ( positive result treated as T4 feature) DIAGNOSTICS OF LUNG CANCER ASSESSMENT OF REGIONAL LYMPHATIC NODES : ENDOSCOPY OF BRONCHIAL TREE (BAC OF TRACHEAL BIFURCATION LYMPHATIC NODES) RADIOLOGICAL EXAMINATIONS (CT, spiral CT, NMR) MEDIASTINOSCOPY (NODES OF GROUP II, IV, VII) PARASTERNAL MEDIASTINOTOMY (NODES OF GROUP V i VI ON THE LEFT) TRANSESOPHAGEAL OR TRANSBRONCHIAL ULTRASOUND EXAMINATION DANIELS BIOPSY of suprasternal lymphatic nodes VIDEOTHORACOSCOPY DIAGNOSTICS OF LUNG CANCER ASSESSMENT OF ORGAN METASTASES : ULTRASOUND EXAMINATION OR CT OF ABDOMEN THIN-NEEDLE ASPIRATION BIOPSY of suspicious isolated tumor in suprarenal gland CT or NMR of brain PET – positron emission tomography SCYNTYGRAPHY OF OSSEOUS SYSTEM (routine in microcellular carcinoma in planned combined treatment, in non-microcellular carcinoma in case of suspicion of metastases in bones) BILATERAL TREPANOBIOPSY OF BONE MARROW FROM ILIAC ALA (in microcellular carcinoma in planned combined treatment) SURGICAL BIOPSY of changes suspected of metastases to subcutaneous tissue DIAGNOSTICS OF LUNG CANCER METHODS OF ESTABLISHMENT OF HISTOPATHOLOGICAL TYPE CYTOLOGICAL EXAMINATION OF SPUTUM CYTOLOGICAL OR HISTOPATHOLOGICAL EXAMINATION OF MATERIAL COLLECTED IN BRONCHOFIBEROSCOPY CYTOLOGICAL EXAMINATION OF PLEURAL EXUDATE THIN-NEEDLE ASPIRATION BIOPSY of peripheral lung tumor ( transthoracal thin-needle aspiration biopsy – puncture through thoracic wall under control of ultrasound or CT) THIN-NEEDLE ASPIRATION BIOPSY OF PERIPHERAL LYMPHATIC NODES HISTOPATHOLOGICAL EXAMINATION OF MATERIAL FROM MEDIASTINOSCOPY, MEDIASTINOTOMY OR VIDEOTHORACOSCOPY DIAGNOSTIC THORACOTOMY TREATMENT OF SMALL CELL LUNG CANCER The basic therapy of this type of lung cancer is chemotherapy, which expands the lenght of life, alleviates the symptoms and reduces the mass of tumor. Usually due to resistance to medicines remission period after chemotherapy is less than a year. The lack of standardized and commonly accepted scheme of treatment. The most often cisplatin combined with etoposide. LD type (limited to one half of the chest) SIMULTANEOUS RADIO-CHEMOTHERAPY (IF THERE IS NO NEOPLASTIC EXUDATE) X-RAY-therapy: According to Turrisi’s scheme – 2 doses daily 1,5 Gy with 6 h break. Total dose 45 Gy in 3 weeks Chemotherapy – 4 cycles lasting 3 days repeated every 3 weeks According to Arriagda’s scheme – alternating chemo radiotherapy, where radiation is applied between 2/3, 3 /4 and 4/5 cycle of chemotherapy. Total radiation dose 55 Gy, altogether 6 cycles of chemotherapy, 7-day breaks ED type (diffuse – the illness expands on the other side of the thorax, mediastinum and supraclavicular nodes) SYSTEMIC, MULTITHERAPEUTIC CHEMOTHERAPY Sometimes preservative radiation of skull, which delays brain metastases in patients with LD type. TREATMENT OF NON-MICROCELLULAR LUNG CANCER I GRADE: IA (T1N0M0), IB ( T2N0M0) The treatment of choice is surgical resection. Preferably lobectomy , cancer exceeding main Fissure require pneumonectomy. T2 tumors from lobal bronchus or infiltrating main bronchus require sleeve lobectomy or pneumonectomy. After resection of tumor T1N0M0 5-year survival is estimated to 65-70%, T2N0M0- 45-55% . Perioperative death rate about 3%-4%. In patients disqualified from surgical treatment – radiotherapy recommended. II GRADE: IIA (T1N1M0), IIB ( T2N1M0, T3N0M0) Indicated surgical treatment even with metastases in N1 nodes. Usually anatomical resection of the lung + resection of infiltration on the thoracic wall + lymphadenectomy. Due to frequent local recurrences and visceral metastases additional treatment is recommended; X-ray therapy decreases the frequency of topical and mediastinal recurrences, chemotherapy reduces systemic recurrences. However, no strategy increases total life length. After resection of tumor T1N1M0 5-year survival is estimated to 45-55%, in T2N1M0- 35%-50%. In T3N0M0 tumors about 30%-35%. This group involves tumors of lung apex ( Pancoasta), in which the prognosis is the worst. Preoperative X-ray therapy reduces the mass of the tumor and increases the ability of resection of Pancoast tumors. Preoperative chemotherapy is examined. Only 20% of patients is in I and II grade of progression at the time of diagnosis. TREATMENT OF NON-MICROCELLULAR LUNG CANCER GRADE III: III A AND III B Topical and systemic treatment considered due to large risk of topical recurrence and metastases. Exact selection of patients to surgical treatment necessary. In case of T3 tumors in order to resect the tumor totally it is necessary to apply pneumonectomy. It is possible in patients with appropriate respiratory reserve. Patients in III grade of progression of lung cancer are about 20% Often it is technically possible to perform resection but long-term results are much worse (N2 feature – topical recurrences in mediastinum). In chosen T4 tumors limited to tracheal bifurcation resection of bifurcation with lobectomy or pneumonectomy ,,sleeve” type is performed. However in 50% of patients mediastinal nodes are occupied. Some surgeon apply preoperative chemotherapy, application of radiotherapy is limited due to the lack of possibilities of controlled embracement of the tumor and the occupied nodes with the radiation dose. 5-year survival after surgical treatment on this grade of progression is estimated to 13 - 25% . TREATMENT OF THE LUNG CANCER In Poland in 2005 - 3518 patients underwent primary surgical treatment because of non-microcellular cancer. Perioperative death rate was 2,53%. CRITERIA OF QUALIFICATION OF PATIENTS TO SURGICAL TREATMENT : CONFIRMATION IN PREOPERATIVE EXAMINATION NON-MICROCELLULAR LUNG CANCER TOPICAL OPERATIVITY OF LUNG CANCER (T1-T3 FEATURE) NOT OCCUPIED LYMPHATIC NODES OF N2 AND N3 GROUP (procedure possible in case of occupation of N2 nodes – after successful preoperative chemotherapy and after confirmed in repeated mediastinoscopy lack of neo cells in collected N2 nodes) GENERAL PATIENT’S STATE ENABLING THORACOTOMY ASSESSMENT OF PREDICTED STATE OF RESPIRATORY EFFICIENCY AFTER A LARGE ANATOMICAL RESECTION OF THE LUNG (pneumonectomy, lobectomy) on the basis of spirometric tests, ventilation or perfusion scintigraphy and DLCO (Diffusing capacity of the lung for carbon monoxide) ASSESSMENT SCALE OF PATIENT’S EFFICIENCY ACCORDING TO ZUBROD (ECCOG- WHO) O – normal effectiveness, ability of performing all activities with no restrictions 1 – clinical symptoms, patient able to walk and do a light job 2 – patient able to perform every day activities but not able to work; spends less than a half of day in bed 3 – patient able to perform every day routines in a restricted way; spends more than a half of day in bed 4 – patient unable to move in bed; requires constant care The best candidates to resection of the lung tissue are patients in O and 1 grade of the scale, much worse results in patients in the 2 grade LUNG CANCER TREATMENT KINDS OF SURGICAL PROCEDURES APPLIED IN LUNG CANCER TREATMENT ANATOMICAL RESECTIONS : LUNG RESECTION (pneumonectomy) RESECTION OF LUNG LOBE (lobectomY) RESECTION OF TWO LOBES OF THE RIGHT LUNG (bilobectomy) RESECTION OF 1 OR 2 LUNG SEGMENTS (segmentectomy, bisegmentectomy) – non-radical procedure rarely used SLEEVE RESECTION LOBECTOMY BROADENED ANATOMICAL RESECTIONS – EXCISION OF THE PART OF THE THORACIC WALL ( ribs, intercostal spaces, diaphragm, pericardium) LYMPHADENECTOMY – removal of local lymphatic nodes NON-ANATOMICAL RESECTIONS: rarely performed, indicated in chosen cases of patients in poor general conditions and little respiratory reserves MARGINAL RESECTION WEDGE RESECTION Lung Resection Wedge Excision Segmentectomy Lobectomy Bilobectomy Pneumonectomy SLEEVE RESECTION LOBECTOMY Procedure performed in chosen cases of benign tumors or malignant tumors of the lowest progression grade (T1N0) located in the opening of the upper-lobe bronchus of the right lung. Such tumor location is an indication to pneumonectomy. The procedure involves excision of the upper lobe of the right lung with a part of the main and medial bronchus and then implanting medial bronchus to the main one, which gives the possibility of saving medial and lower lobe. Sleeve resection of the upper lobe Removal of benign tumor of medial bronchus in bronchoplasty TREATMENT OF LUNG CANCER CHEMOTHERAPY IN TREATMENT OF NONMICROCELLULAR LUNG CANCER NEOADJUWANT CHEMOTHERAPY INDUCTIVE CHEMIOTERAPY SUPPLEMENTING TOPICAL TREATMENT (adjuwant therapy) COMBINED CHEMOTHERAPY WITH RADIOTHERAPY PALLIATIVE CHEMOTHERAPY TREATMENT OF LUNG CANCER RADIOTHERAPY IN TREATMENT OF NONMICROCELLULAR LUNG CANCER USED IN NON-SURGICAL TREATMENT OF EARLY GRADES OF CANCER AS A MONOTHERAPY AS WELL AS A PART OF COMBINED THERAPY IN TOPICALLY ADVANCED NEOPLASTIC DISEASES. IT IS EFFECTIVE IN PALLIATIVE TREATMENT AND TREATMENT OF DISTANT METASTASES. ITS INFLUENCE ON LENGHTENING OF SURVIVAL TIME IS SIMILARLY TO CHEMOTHERAPY LITTLE. TREATMENT OF LUNG CANCER INDUCTIVE CHEMOTHERAPY USED IN PATIENTS IN IIIA STAGE WITH N2 FEATURE (T1-3, N2, M0), IN WHICH THERE ARE TECHNICAL POSSIBILITIES OF PERFORMING TOTAL SURGICAL TREATMENT 1-3 COURSES (cisplatin, winorelbin, winblastin, windezin, wepeside, gemcytabin) CONTROL OF RESPONSE SURGICAL TREATMENT 21 DAYS AFTER THE LAST COURSE SUPPLEMENTARY RADIOTHERAPY (confirmation of metastases to N2 nodes or positive margin in the stump of removed bronchus in histopathological examination) TREATMENT OF LUNG CANCER CHEMOTHERAPY COMBINED WITH RADIOTHERAPY USED IN PATIENTS IN III B GRADE (T4, every N, M0 and every T, N3, M) and in patients in lower grades of progression who cannot undergo surgical treatment because of health state CHEMOTHERAPY - 1-2 courses before radiotherapy RADIOTHERAPY - 1,8-2,0 Gy daily; total dose =60-65Gy. The field involves primary tumor and hilar lymphatic nodes and bilaterally mediastinal ones. TREATMENT OF LUNG CANCER CONTRAINDICATIONS TO RADIOTHERAPY STAGE OF GENERAL EFFICIENCY WORSE THAN 2 PRESENCE OF PLEURAL EXUDATE PRESENCE OF ACTIVE INFECTION LOSS IN BODY WEIGTH MORE THAN 10% IN 3 MONTHS BEFORE TREATMENT TREATMENT OF LUNG CANCER IN IV GRADE OF PROGRESSION PALLIATIVE CHEMOTHERAPY INDICATED IN SOME PATIENTS IN IV GRADE (M1), WHO FULFILL THE FOLLOWING CONDITIONS: GOOD GENERAL STATE LITTLE LOSS IN BODY WEIGTH POSSIBILITY OF CONTROL THE RESPONSE AFTER 2 CYCLES LACK OF ACTIVE INFECTION PRESERVED EFFICIENCY OF ORGANS AND SYSTEMS PATIENT DISQUALIFIED FROM PALLIATIVE RADIOTHERAPY