2 solid tumors1
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for med test 3TRANSCRIPT
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Solid tumors
Antonio Rivas PA-CFebruary 2009
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Case # 1 56 yo real state broker
76 pack-year hx of tobacco use (2 packs per day since age 16)
Nl chest x-ray 8 months ago
HPI Hemoptysis x 10 days(blood tinged sputum)
Chronic cough Denies :
weight loss Chest pain Bone pain DOE
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PE Lungs CTA Bil.
No organomegaly No abn.neurologic findings
No clubbing Laboratory Studies
NL liver function tests (?)
Ca.11.1 mg/dl (?) Albumin 3.9 gm/dl(wnl) CBC- WNL
Chest Xray New 2x3cm R hilar mass
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Diagnostic tests? Bronchoscopic biopsy of a lung mass
Biopsy of a supraclavicular lymph node for histologic study and staging
Central location of the lesion Offer information about histological type
Either Squamous(NSCLC) or SCLC Biopsy needed for confirmation
High Calcium level associated with Squamous cell carcinoma
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Staging TNM T2 Nx Mx
Tumor 3cm in greatest dimension Nodal status unk. Unk. Metastases
CT scan needed for staging, nodules and metastases evaluation
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Lung Cancer
One of the most malignant disease in the US
More than 163,000 death occurs each year
Tobacco smoke accounts for >90 % of all lung cancers
Metabolite of cigarette smoking binds and alter suppressor gene TP53
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Lung cancer Small cell lung cancer SCLC
•(15 %)of all lung cancer Non-small cell lung cancer NSCLC
•Squamous cell carcinomas(25-30 %)•Adenocarcinomas (40 %)•Large cell tumors (10-15 %)
The category of the cancer determines the treatment options
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Small cell lung Cancer
Aggressive course: grows rapidly and spreads to lymph nodes, bone, brain, adrenal glands, and the liver.
Highly associated with tobacco smoking. Less than 5% incidence in non-smokers
Paraneoplastic syndromes Associated to SIADH, and Cushing’s Syndrome
Often, large mediastinal mass centrally located tumor in the mediastinum
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Non-Small Cell Lung Cancer
Squamous cell carcinoma: highly associated with tobacco smoking develops in the central region of the lungs,
assoc.paraneoplastic-hypercalcemia Adenocarcinoma:
outer region of the lungs, most common lung cancer, the most often Dx in non smokers
Large cell tumors: the least common, Histologic features of neuro-endocrine tumors
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Factors that influence risk of developing lung cancer include:
Family History of Lung Cancer Smoking Radon Asbestos Chronic Lung Diseases
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Case # 1
CT of the liver showed no mets. Alk.p.WNL - no bone mets. If AP abn- do bone scan If Neurology consultation PE is WNL CT scan of the head defered
T2 N0 M0
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Family History of Lung Cancer
inherit defective genes that lead to the development of a familial form of a particular cancer type
For example, certain genes influence a person's ability to metabolize some of the carcinogenic chemicals in cigarette smoke.
An individual with inherited suceptibility that chooses to smoke may be at an increased the risk of developing lung cancer compared to other smokers.
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Family History of Lung Cancer Risk is higher if an immediate family member has been diagnosed with lung cancer. The more closely related an individual is to someone with lung cancer, the more likely they are to share the genes that increased the risk of the affected individual. Risk also increases with the number of relatives affected
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Smoking Smoking is, by far, the leading risk factor for lung cancer.
• In 2004, the United States Surgeon General released a report addressing the harmful effects of smoking on health (The Health Consequences of Smoking: A Report of the Surgeon General)
Included in the report was the following "The evidence is sufficient to infer a causal relationship between smoking and lung cancer.
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Smoking
There are more than 60 molecules in cigarette smoke that are thought to be carcinogenic in humans
Two carcinogens highly associated with lung cancer are benzo[a]pyrene and N-nitrosamine NNK. These molecules bind to DNA and proteins, forming adducts.
The presence of adducts increases the chance of DNA mutation and interferes with the proper function of proteins
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Second-Hand Smoke
second-hand smoke also greatly increases risk of lung cancer. In 2006, the Surgeon General released a report addressing the harmful effects of second-hand smoke on health
According to the report, second-hand smoke contains over 50 cancer-causing chemicals and can lead to many health problems, including lung cancer. The effects of second-hand smoke are especially harmful to the developing lungs of infants and children
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Other risk factors for lung cancer
Radon is a naturally occuring, colorless, oderless gas, possibly contributing to 10% of all lung cancer cases
Asbestos a naturally occurring mineral frequently used in commercial construction throughout the 1950's and 1960's. The long, thin fibers of asbestos are fragile and have a tendency to break down into dust particles Asbestos particles are easily inhaled into the lungs, where they cause damage to lung tissue that can lead to lung cancer
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Other risk factors for lung cancer Chronic lung diseases such as asbestosis (scarring of lung tissue caused by asbestos), asthma, chronic bronchitis, emphysema, pneumonia, and tuberculosis have been suggested to increase risk of lung cancer. All of these diseases damage lung tissue and can result in scar tissue on the lungs.
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Symptoms
no symptoms associated with early stage lung cancer
symptoms associated with advanced stage lung cancer Persistent cough Sputum streaked with blood Chest pain Voice change Recurrent pneumonia or bronchitis
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Detection
At the time diagnosed, majority of lung cancers have progressed to an advanced state. Lung cancer screening is not currently routine practice
sometimes caught in its early stages by tests that are performed for other reasons
most common methods of lung cancer detection include chest x-ray, chest CT scan, bronchoscopy ,and sputum cytology
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Pathology Report
suspicion that a patient may have lung cancer, a sample of tissue (biopsy)is taken
Staging of non-small cell lung cancer (NSCLC) follows the TNM criteria.
Because small cell lung cancer (SCLC) is often diagnosed at a more advanced state, the T/N/M system is not used
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Veterans Administration Lung Study Group System small cell lung cancer (SCLC) usually staged using the Veterans Administration Lung Study Group System
2-stage system based on location of the cancer Limited-stage: The cancer is located in only one lung and lymph nodes on the same side of the body
Extensive-stage: The cancer has spread to the other lung and/or other regions of the body
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Case # 1 Treatment Stage II NSCLC Surgical excision Lobectomy or Pneumonectomy If ABG, EKG, Past Med.Hx WNL showing no excess risk for major surgery
Surgeon consult Mediastinoscopy : nodes biopsied on both sides
If neg.upper lobectomy through lateral thoracotomy
Pathologic follow up
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Treatment NSCLC
Complete removal of the tumor offers better chance of survival• Assessment of resectability• Anatomic loc.tumor• Patients medical condition• Pulmonary reserve
Stage I and II - surgical treatment Stage III - neoadjuvant therapy, then resection
80 % not resectable- stage IIIA and IIIB chemotherapy and radiation
Stage IIIB and IV- chemo.improved survival in 8-11months
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Treatment SCLC
Combination therapy, best option Limited stage : 4-6 cycles chemotherapy as long as they respond to therapy
Concomitant radiation provides longer survival
40% has brain metastasis and prophylactic cranial radiation should be considered
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Head and Neck cancers
Most are squamous cell carcinomas Larynx, oral cavity, oropharynx and sinuses
Risk factors: tobacco, alcohol, poor oral hygiene
Nasopharyngeal Ca. associated with EBV infection
High risk for lung and esophageal cancer
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Head and Neck Ca.
Prognosis associated to: Tumor burden Thickness of the tumor Presence or absence of regional lymph node involvement
Cure rate with small tumors 75-95%
Continued used of tobacco after Dx associated with poor prognosis
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Symptoms
Depending on location Pain with swallowing Change in voice Mass under the tongue Red or white patches in the mouth Oral bleeding, ill fitting dentures
Recurrent or not resolving sinusitis
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Diagnosis of Head and Neck Cancers
Required confirmation with Biopsy MRI and CT head and neck
to determine extent of the tumor Endoscopy to examine the whole aerodigestive tract
Small tumors with no lymph node involvement, treated With radiation or surgery
Locally advanced disease : surgery, radiation and chemotherapy
Most recurrence 2-3 years after therapy
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GI Cancers
Among the most common tumors Improved survival and quality of life for patients with colorectal cancer
Cancer of the esophagus, pancreas, liver and stomach less common
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Esophageal cancer
Two types: Squamous cell - most common in cervical and thoracic esophagus
Adenocarcinoma - lower esophagus, related to Barret’s esophagus
More common in African-Americans Smoking Achalasia Caustic injury Alcohol
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Symptoms, Dx and TTo
Dysphagia - solid food is “stuck”,main symptom, chest pain
Progressive regurgitation-afraid to eat -weight loss
Upper GI series-Biopsy Endoscopic US for staging CT and PET for metastasis to the liver and chest (most common)
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Tto. For Esophageal Cancer Surgery more common If surgery not possible radiation and chemotherapy
For metastasis: systemic chemotherapy
For severe dysphagia endoscopic placement of a metal or plastic stent
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Gastric Cancer
Higher in poor countries with increased used of smoked meat high in nitrates
Assoc.to Pernicious anemia Achlorhydria Gastric ulcers Prior gastric surgery H . pylori infections
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Gastric Cancer
Symptoms Abdominal pain Early satiety Anemia Hematemesis Weakness Weight loss
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Gastric Cancer
Frequently involving local lymph nodes at the time of DX
PE: gastric mass Umbilical node (Sister Mary Joseph’s nodes)
Left supraclavicular node (Virchow’s node)
Adenocarcinoma
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Gastric cancer
Incidence has decreased in US , except for Gastroesophageal junction cancers
Biopsy - Adenocarcinoma Local or spread to gastric lining (linitis plastica)
CT scan and upper endoscopy for staging and to look for metastasis to the liver
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Gastric Cancer
Treatment Most often surgery If tumor and involved lymph nodes removed 20-60% 5 year survival rate
Most common site of metastasis and recurrence : the liver
Chemotherapy and radiation also improves survival
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Colorectal cancer (CRC) 3rd most common cancer in both sexes
Rare before age 40 yo Most arise from polyps Risk factors:
Inflammatory bowel disease (IBD)•Ulcerative colitis
Personal hx of adenomas family Hx of CRC, 1st and 2nd degree relative
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Other risk factors Sedentary life Obesity Diet rich in red meats Cigarette smoking Alcohol use
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Colorectal Cancer
Patients with known mutations or family Hx or a disease related with Colon cancer, begin Colonoscopy early
Familial adenomatous polyposis start in teenage years
10 years before the age of the age of DX of the youngest family member with colon cancer
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Colorectal Cancer symptoms
Right sided lesions: Asymptomatic Anemia
•Occult bleeding Left sided lesions:
Signs of abdominal obstruction•Abdominal pain, distention, cramping•Constipation /Diarrhea•Nausea / Vomiting
Bowel perforation / peritonitis
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Colon Cancer Dx
1st choice Colonoscopy- in symptomatic patient (visualize/biopsy)
2nd choice Double contrast barium enema
• Apple core lesion
Preoperative CT abd. / pelvis
• Metastases first to liver
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Staging Stages
Pathology
Duke’s
TNM Numerical
------
TisNoMo 0 Ca in situ
A T1NoMo I Limited to mucosa/submucosa
B1 T2NoMo I Into muscularis mucosae
B2 T3NoMo II Into serosa
C TxN1Mo III Involve regional lymph nodes
D TxNxM1 IV Distant mets(liver and lungs)
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Colon Cancer Staging and Tx Early stages-surgery (Dx and curative)
Duke’s and TNM after surgery Curative Surgery:
• Removal involved bowel section• Disease free margin at both ends• Removal of affected Lymph Nodes • Temporary colostomy
Extensive Permanent colostomy
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Treatment colorectal cont. Adjuvant chemotherapy warranted in Duke’s stage C and some B
•5-fluoruracil + leucovorin
Metastatic ds•Chemo – improves survival
Radiation •for rectal cancer or tumors arising <25 cm from anal verge
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Colorectal screening 2008
following examination schedules after age 50 yo
A flexible sigmoidoscopy (FSIG) every five years A colonoscopy every ten years A double-contrast barium enema every five years A Computerized Tomographic (CT) colonography
every five years A guaiac-based fecal occult blood test (FOBT) or
a fecal immunochemical test (FIT) every year A stool DNA test (interval uncertain)
Tests that detect adenomatous polyps and cancer Tests that primarily detect cancer
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Tumor Marker CEA –
Elevated 1/3 of the pat.early on ds. Present in 90% of metastatic Ds. Not useful screening Good to detect recurrence after resection
Most recurrences within 4years after surgery
Better prognosis for stage I tumors
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Anal Carcinoma
Increased frequency HPV and HIV
Rectal bleeding and fullness Chemotherapy and radiation for localized lesions
Abdomino-perineal resection for failure to chemo.
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Pancreatic Cancer
Strong association with smoking Adenocarcinoma-high mortality Islet cell carcinoma-less common Most common symptom: rapid weight loss and abdominal pain
Pain in periumbilical area piercing to the back
Recent onset of diabetes
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Pancreatic Cancer
Palpable gallbladder•(Courvoisier’s sign)
Jaundice (blockage distal bile duct)
Migrating thrombophlebitis (trousseau’s sign) - paraneoplastic complication
Tumor marker CA-19-9 only elevated in 75 % or less of the patients
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Pancreatic Cancer
Treatment Pancreaticoduodenectomy (Whipple’s procedure) surgery
High mortality rate