Head and Neck Cancer
The concept of head and neck cancer is included in the syllabus of the master's of clinical pharmacy.This presentation includes epidemiology, Types, Pathology, Etiology and risk factors, signs and symptoms, treatment according to stages, Classification, Mechanism of action, and the latest research.
Principles of cancer chemotherapy: a deep insight, by RxVichuZ!!RxVichuZ
This presentation deals with PRINCIPLES OF CANCER CHEMOTHERAPY.
The following headings are included:
A. PRINCIPLES OF ONCOLOGY
B. CELL-CYCLE
C. PRINCIPLES OF CANCER CHEMOTHERAPY
Precise details have been provided.
Do go through!!
A brief description on cancer.Cancer – a large group of diseases characterized by the uncontrolled growth and spread of abnormal cells,Some topics are genesis of cancer,types of cancer,causes of cancer like Heredity,Immunity,Chemical,Physical,Viral Bacterial,Lifestyle.
,sign&symptom:*Change in bowel habits or bladder function,*Sores that do not heal,*Unusual bleeding or discharge,*Thickening or lump in breast or other parts of the body,Indigestion or trouble swallowing,*Recent change in a wart or mole,Nagging cough or hoarseness,
diagnosis and staging,treatment:Surgery,Radiation,Chemotherapy,Immunotherapy,Hormone therapy, Gene therapy,side effect of cancer treatment,prevention of cancer
Principles of cancer chemotherapy: a deep insight, by RxVichuZ!!RxVichuZ
This presentation deals with PRINCIPLES OF CANCER CHEMOTHERAPY.
The following headings are included:
A. PRINCIPLES OF ONCOLOGY
B. CELL-CYCLE
C. PRINCIPLES OF CANCER CHEMOTHERAPY
Precise details have been provided.
Do go through!!
A brief description on cancer.Cancer – a large group of diseases characterized by the uncontrolled growth and spread of abnormal cells,Some topics are genesis of cancer,types of cancer,causes of cancer like Heredity,Immunity,Chemical,Physical,Viral Bacterial,Lifestyle.
,sign&symptom:*Change in bowel habits or bladder function,*Sores that do not heal,*Unusual bleeding or discharge,*Thickening or lump in breast or other parts of the body,Indigestion or trouble swallowing,*Recent change in a wart or mole,Nagging cough or hoarseness,
diagnosis and staging,treatment:Surgery,Radiation,Chemotherapy,Immunotherapy,Hormone therapy, Gene therapy,side effect of cancer treatment,prevention of cancer
CARCINOMA OF THE ORAL CAVITY. Diagnosis and management.tDr. RIFFAT KHATTAK
The Oral Cavity, with it's seven subsites,is a host of multiple epithelial, mesenchymal & glandular structures. Thus, if exposed to multiple risk factors, either in isolation or in combination, could undergo drastic histological changes leading to malgnancies. A thorough clinical examination, diagnosis and timely intervention followed by rehabilitation of the patient, via a multi disciplinary approach is the mainstay of treatment.
Introduction: Oral cancer is one of the most prevalent diseases worldwide, accounting for 30-40% of the head and neck cancer. It is fairly common and very curable if found and treated at an early stage.
Definition: Oral cancer is also known as mouth cancer, is cancer of the lining of the lips, mouth or upper throat. It belongs to a large group of cancers called head and neck cancers.
Classification: The TNM classification stages different types of cancer based on certain standard criteria:
T describes the size of the primary tumor
N describe the lymph nodes
M describes whether the cancer has metastasized.
Describe the pathophysiology, clinical manifestations, diagnostic te.pdfellanorfelicityri239
Describe the pathophysiology, clinical manifestations, diagnostic tests and nursing management
for patients with abnormal cell growth of the head, neck and chest.
Solution
The abnormal cell growth of the head, neck and chest may be due to neuroblastoma or the head
and neck cancer. The treatment and manifestations depend on type and location of growing cells,
tumor size, how far it has spread, and if the tumor cells secrete hormones.
PATHOPHYSIOLOGY
Cancers of the head and neck are recognized by using the area wherein they begin: the oral
cavity, salivary glands, paranasal sinuses and nasal cavity, pharynx, larynx, and lymph nodes
within the neck. Tumors inside the neck can often be visible or felt as a hard, painless lump. The
main reasons of head and neck cancers include tobacco (smoked or chewed), and alcohol. other
threat factors are solar exposure, human papillomavirus (HPV) infection, radiation to the top and
neck, ancestry, Epstein-Barr virus infection, wooden dust or airborne asbestos, intake of certain
preservatives or salted meals, terrible oral hygiene, and Plummer-Vinson syndrome.
CLINICAL MENIFESTATION
If the tumor is in the chest, it would press at the superior vena cava. This will motive swelling
inside the face, neck, hands, and upper chest and occasionally with a bluish-crimson skin shade.
it can additionally cause headaches, dizziness, and a alternate in awareness if it influences the
mind. The tumor may press at the throat or windpipe, which could purpose coughing and
problem respiration or swallowing. Neuroblastomas that press on nerves within the chest or neck
can sometimes purpose other symptoms, together with a drooping eyelid and a small pupil.
Stress on different nerves near the backbone might have an effect on the potential to experience
or move their arms or legs. Symptoms of numerous head and neck cancer sites include a lump or
sore that does not heal, a sore throat that does not leave, issue swallowing, and a change or
hoarseness inside the voice. Neuroblastomas sometimes launch hormones that may reason
problems with tissues and organs, those troubles are known as paraneoplastic syndromes which
consist of steady diarrhea, Fever, excessive blood pressure causing irritability, speedy heartbeat,
Reddening of the pores and skin, Sweating etc.
DIAGNOSIS:
Tests conducted to diagnose head and neck most cancers range relying on the symptoms and can
include a biopsy, endoscopy, blood or urine checks, X-rays, CT scans, MRIs, and pet scans.
• Physical examination may encompass visible inspection of the oral and nasal cavities, neck,
throat, and tongue the usage of a small mirror and/or lights. The physician may feel for lumps on
the neck, lips, gums, and cheeks.
• Endoscopy examines regions within the body. The kind of endoscope the doctor uses depends
at the vicinity being examined.
• Laboratory exams test the samples of blood, urine, or other substances from the body.
If the analysis is cancer, the doctor will need to learn.
Oncology: disease condition of oral cancerRinkupatel55
It help the nursing student for the gain the kowledge and about the condition of the diaseas condition. also help the staff to encourage them self go upgrade the knowledge.
Slides prepared by highly experienced ENT teacher, Dr. Krishna Koirala from Nepal , for teaching undergraduate and postgraduate MBBS students in the field of otorhinolaryngology. A clear and concise explanation of the basic concepts in the subject matter concerned. He is the Head of department with a sound knowledge in the field of ENT to teach both undergraduate and postgraduate ENT students
Slides prepared and compiled by highly experienced ENT teacher, Dr. Krishna Koirala from Nepal , for teaching undergraduate and postgraduate ENT students in the field of otorhinolaryngology.
A clear and concise explanation of the basic concepts in the subject matter concerned.
He is the Head of department with a sound knowledge in the field of ENT to teach both undergraduate and postgraduate ENT students
How to Make a Field invisible in Odoo 17Celine George
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Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
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The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
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http://sandymillin.wordpress.com/iateflwebinar2024
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Basic phrases for greeting and assisting costumers
Head and neck cancer
1. HEAD AND NECK
CANCER
By
Miss. Shruti Rajendra
Rudraksha
Department of
Clinical Pharmacy
M. Pharm First year
Guide
Dr. S. D. Patil
2. What exactly head and neck cancer
means?
2
Head & neck cancer refers to cancers of the UADT (Upper aero digestive
tract)
1. Oral Cavity
2. Pharynx
3. Larynx
4. Nasal cavity & Paranasal sinuses
5. Salivary glands
3. EPIDEMIOLOGY
• Overall, head and neck cancer accounts for more than 550,000 cases
annually worldwide.
• Males are affected significantly more than females with a ratio ranging
from 2:1 to 4:1.
• The incidence rate in males exceeds 20 per 100,000 in India.
• Head and neck cancers are common in India and account for about 30%
of cancers in males and about 13% in females.
• Oral cavity cancers are more common in the India.
3
4. HEAD AND NECK CLASSIFICATION
Head and neck cancers arise from a variety of locations and structures within
the head and neck region.
This region is divided into five sites by which cancers are classified
1. Oral cavity, which includes the lips, buccal mucosa, anterior tongue, floor
of the mouth, hard palate, upper gingiva, lower gingiva, and retromolar
trigone.
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6. 2. Pharynx which is divided into the nasopharynx, the oropharynx, and the
hypopharynx.
The nasopharynx, the narrow tubular passage behind the nasal cavity, is the upper
part of the pharynx.
The oropharynx, the middle part of the pharynx, includes the tonsillar area, the
tongue base, the soft palate, and the posterior pharyngeal wall.
The hypopharynx, which is the lower part of the pharynx, includes the pyriform
sinuses, the posterior surface of the larynx (post cricoid area) and the infer
posterior, and inferolateral pharyngeal wall.
6
8. 3. Larynx is divided into three anatomic regions the supraglottic larynx, the
glottic larynx (true vocal cords and the anterior and posterior commissures)
and the subglottic larynx.
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9. 4. Nasal cavity and the paranasal sinuses, which include the maxillary,
ethmoid, sphenoid, and frontal sinuses
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10. 5. Major salivary glands (parotid, submandibular, and sublingual) and the
minor salivary glands, which are located throughout the submucosa of the
mouth and upper aerodigestive tract.
10
11. • Squamous cell carcinomas account for 90 to 95 percent of the lesions in
the head and neck.
• They can be categorized as well differentiated (greater than 75 percent
keratinization), moderately differentiated (25 to 75 percent keratinization),
and poorly differentiated (less than 25 percent keratinization) tumors.
• Less common histologies include verrucous carcinoma (a variant of
squamous cell carcinoma), adenocarcinoma, adenoid cystic carcinoma, and
mucoepidermoid carcinomas
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PATHOLOGY
12. 1. Smoking : In heavy cigarette smokers, there is a 5- to 25-fold increased risk
of cancer compared with nonsmokers.
2. Alcohol : Alcohol consumption independently increases the risk of cancer in
the upper aerodigestive tract.
3. Viral infection Epstein-Barr virus : A large body of evidence supports the role
of EBV as the primary etiologic agent in the pathogenesis of nasopharyngeal
carcinoma.
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ETIOLOGY AND RISK FACTORS
13. 13
4. Human papillomavirus –Sexual activity with a person who has HPV is the
most common way someone gets HPV. Particularly those arising in the base of
the tongue and the tonsils. HPV associated oropharyngeal cancers are typically
seen in younger men who are non users of tobacco and alcohol.
6. Human immunodeficiency virus —There is an approximately two- to three
fold increase in the incidence of squamous cell carcinoma of the head and
neck in HIV-infected patients.
14. 14
6. Genetic factors — Multiple genetic
factors and pathways may contribute to an
increase in risk of head and neck cancer,
and these factors may interact with other
known risk factors.
Two inherited genetic syndromes, Fanconi
anemia and Dyskeratosis congenita, may
greatly increase the likelihood of developing
throat and mouth cancers in people at an
early age.
Fanconi
anemia
Dyskeratosis
congenita
15. 15
7. Radiation — Prior irradiation for either malignant or benign disease has
been linked to thyroid cancer, salivary gland tumors, squamous cell cancers,
and sarcomas.
8. Diet- Several studies have shown a protective effect associated with
increased consumption of fruits and vegetables. Studies suggest that the risk
of nasopharyngeal carcinoma is increased in frequent consumers of
preserved meats that contain high levels of added nitrites
16. 9. Age- People over the age of 40 are at higher risk for head and neck cancer.
10. Marijuana use
11. Poor nutrition- A diet low in vitamin A and B can raise a persons risk.
12. Weakened immune system.
16
17. SIGNS AND SYMPTOMS
• Swelling or a sore that does not heal; this is the most common symptom
• Red or white patch in the mouth
• Lump, bump, or mass in the head or neck area, with or without pain
• Persistent sore throat
• Foul mouth odour not explained by hygiene
• change in voice
• Nasal obstruction or persistent nasal congestion
• Frequent nose bleeds and/or unusual nasal discharge
• Difficulty breathing
• Double vision
• Numbness or weakness of a body part in the head and neck region
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18. DIAGNOSIS
• Physical examination/blood and urine tests. During a physical examination, the doctor
feels for any lumps on the neck, lips, gums, and cheeks. The doctor will also inspect the
nose, mouth, throat, and tongue for abnormalities, often using a light and a mirror for a
clearer view. Blood and urine tests may be done to help diagnose cancer.
• Endoscopy. It allows the doctor to see inside the body with a thin, lighted, flexible tube
called an endoscope. The person may be sedated as the tube is gently inserted through
the nose into the throat and down the esophagus to examine inside the head and neck.
Sedation is giving a person medication to become more relaxed, calm, or sleepy.
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19. • Panoramic radiograph. A panoramic radiograph is a rotating, or panoramic, x-ray
of the upper and lower jawbones to detect cancer or evaluate the teeth before
radiation therapy or chemotherapy. This is often called a Panorex.
• Ultrasound. An ultrasound uses sound waves to create a picture of internal
organs.
• Molecular testing of the tumor. Your doctor may recommend running laboratory
tests on a tumor sample to identify specific genes, proteins, and other factors
unique to the tumor. Results of these tests can help determine your treatment
options.
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20. IMAGING STUDIES
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1. Fine needle aspiration cytology — Fine needle
aspiration cytology (FNA) is frequently used to make an
initial tissue diagnosis of a head and neck cancer when a
patient presents with a neck mass (metastatic cervical
lymph node) without an obvious primary mucosal/upper
aerodigestive tract site.
This technique has high sensitivity and specificity and a
diagnostic accuracy that ranges from 89 to 98 percent .
21. • Imaging studies (computed
tomography [CT], magnetic
resonance imaging [MRI], positron
emission tomography [PET], and
integrated PET/CT) are important
for assessing the degree of local
infiltration, involvement of regional
lymph nodes, and presence of
distant metastases or second
primary tumors.
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22. TNM staging system
• Tumor (T): How large is the primary tumor? Where is it located?
• Node (N): Has the tumor spread to the lymph nodes? If so, where and
how many?
• Metastasis (M): Has the cancer spread to other parts of the body? If so,
where and how much?
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23. 1. EARLY STAGE - Approximately 30 to 40 percent of patients with head and neck
squamous cell carcinomas (HNSCCs) present with early (stage I and II) disease. In
general, these patients are treated with either primary surgery or definitive radiation
therapy (RT).
2. ADVANCED STAGE - Historically, local therapy alone, i.e, primary surgery or definitive
radiation therapy (RT), for locoregionally advanced (stage III, IVA, and IVB) head and
neck squamous cell carcinomas resulted in high rates including loss of tongue and
larynx function (speech and swallowing).
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TREATMENT ACCORDING TO STAGES
24. TYPES OF TREATMENT
• Medical oncologist: A doctor who treats cancer using medications, such as
chemotherapy, immunotherapy, and targeted therapy.
• Radiation oncologist: A doctor who specializes in treating cancer using radiation
therapy.
• Surgical oncologist: A doctor who treats cancer using an operation.
• Reconstructive/plastic surgeon: A doctor who specializes in reconstructive surgery,
which is done to help repair damage caused by cancer treatment.
• Maxillofacial prosthodontist: A specialist who performs restorative surgery in the head
and neck areas.
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28. ALKYLATING AGENTS- Cisplatin
• Cisplatin binds to the N7 reactive center on purine residues and as such can cause
deoxyribonucleic acid (DNA) damage in cancer cells, blocking cell division and resulting
in apoptotic cell death. The 1,2-intrastrand cross-links of purine bases with cisplatin are
the most notable among the changes in DNA
• Acute toxicity: Chiefly nausea and vomiting- managed by premedication with emetics.
• Delayed toxicity: Nephrotoxicity , ototoxicity , peripheral sensory neuropathy, Nerve
dysfunction and hypersensitivity reaction.
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29. ANTIMETABOLITE- Methotrexate
• Two most common antimetabolites commonly employed in HNCs are Methotrexate and
5-fluoro Uracil.
• MTX- folic acid antagonist that binds to the active catalytic site of DHFR interfering-
interrupts the de novo synthesis of thymidylate, purine nucleotides, and the amino
acids serine and methionine- interfering with the formation of DNA, RNA, and key
cellular proteins.
• 5-FluoroUracil: 5-FU acts principally as a thymidylate synthase (TS) inhibitor –blocks
thymine synthesis. inhibits DNA replication- thymine less death.
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30. ANTITUMOR ANTIBIOTICS -Bleomycin
• MOA: acts by binding to DNA- single-strand and double-strand breaks
following free radical formation- inhibition of DNA biosynthesis.
• Acute Toxicity: Allergic reactions, fever, hypotension.
• Delayed Toxicity: Almost every patient experience fever - first 4-12hrs
after bleomycin injection-usually brief and not clinically troublesome. Skin
toxicity common - toxic free radicals producing DNA damage: -managed
by topical steroids
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31. MITOTIC SPINDLE AGENTS- Paclitaxel
• Paclitaxel-treated cells have defects in mitotic spindle assembly, chromosome
segregation, and cell division. Chromosomes are thus unable to achieve
a metaphase spindle configuration. This blocks the progression of mitosis and prolonged
activation of the mitotic checkpoint triggers apoptosis or reversion to the G0-phase of the
cell cycle without cell division.
• Acute toxicity: Nausea, vomiting, hypotension, arrhythmias, and hypersensitivity
reactions-5% of patients within first 2-3 minutes after first or second dose mitosis.
• Delayed toxicity: Peripheral sensory neuropathy is seen which is dose- and time-
dependent59 .Bone marrow depression.
31
32. TYROSIN KINASE INHIBITORS- Imatinib
• MOA: Imatinib works by binding close to the ATP binding site of bcr-abl, locking it in a
closed or self-inhibited conformation, and therefore inhibiting the enzyme activity of the
protein semi-competitively.
• Toxicity: generally very well tolerated. side effects such as edema, nausea, rash and
musculoskeletal pain are common but mild.
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33. LATEST RESEARCH
• Immunotherapy. An active area of immunotherapy research is focused on drugs that
block a protein called PD-1. PD-1 is found on the surface of T cells, which are a type
of white blood cell that helps the body’s immune system fight disease. Because PD-1
keeps the immune system from destroying cancer cells, stopping PD-1 from working
allows the immune system to better eliminate the disease. There are 2
immunotherapy drugs approved for the treatment of metastatic or recurrent head
and neck cancers. Researchers are studying PD-1 immunotherapy for people with
recurrent and metastatic head and neck cancer in clinical trials.
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34. • Radiofrequency thermal ablation (RFA). RFA is a minimally invasive treatment option
that applies heat to the tumor to destroy cancer cells. It is usually used to treat a
localized tumor that cannot be removed by surgery.
• Photodynamic therapy. In photodynamic therapy, a light-sensitive substance is injected
into the tumor that stays longer in cancer cells than in healthy cells. A laser is then
directed at the tumor to destroy the cancer cells. The long-term effects of
photodynamic therapy are still being studied.
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