The word “Tumor” means an overgrowth of an abnormal tissue mass. This over-growth is unrelated or not in coordination with the growth and development of rest of the body. In medicine, the term “Neoplasia” is used to address a tumor – “Neo” meaning New and “Plasia” meaning Formation.
Just like parasites, which draw nutrition from its host, tumors also grow at some part of the body and cause wasting of tissues of the affected person. Also, tumors tend to increase in size irrespective of their location or neighbouring structures.
Tumors are differentiated into two types depending upon their growth, spread, clinical and microscopic features
Features | Benign Tumors | Malignant Tumors |
---|---|---|
Boundaries | Encapsulated or well circumscribed | Irregular and poorly circumscribed |
Surround tissues | Tumor expands and pushes or compresses the surrounding tissues without invading them | Invades and destructs the surrounding tissues |
Size | Usually small | Usually larger |
Shape | Generally spherical or oval | Irregular shape |
Pattern | Closely resembles original tissue and is well-differentiated | Poorly resembles original tissue and is poorly-differentiated |
Growth rate | Usually slow | Usually rapid |
Metastasis (spread to other sites) | Absent | Frequently present |
Prognosis | Local complications due to tumor | Death due to local and metastatic complications |
It is quite clear from the table above that benign tumors are relatively harmless and be removed surgically. They do not invade or destroy the adjacent tissues.
Malignant tumors, on the other hand, tend to destroy and spread to other tissues. They tend to form secondary tumors at other sites. This process of infiltration to other sites is called “Metastasis”.
Routes by Which Malignant Tumor Metastasize are
1. Lymphatic system
2. Blood circulation
3. Spread along body cavities like peritoneum, cerebrospinal fluid
Grading of cancer is based on two features are a degree of differentiation and rate of growth. Grading is the microscopic and macroscopic/gross degree of differentiation of a malignant tumor. Based on this, Border’s grading for cancer is
➢ Grade-I – Well differentiated (less than 25% anaplastic cells), least malignant.
➢ Grade-II – Moderately differentiated (25-50% anaplastic cells)
➢ Grade-III – Moderately differentiated (50-75% anaplastic cells)
➢ Grade-IV – Poorly differentiated (more than 75% anaplastic cells). Most malignant.
Staging measures Extent of Spread of A Malignant Tumor. Two Methods for Staging are Used
➢ TNM staging – T-primary tumor, N-regional nodal involvement and M-distant metastasis.
➢ AJC staging – the American Joint Committee staging divides cancer from stage 0-IV taking into account primary tumor, nodal involvement and metastasis.
Cancer has emerged to be a major health concern owing partially to non-modifiable factors like genetics and modifiable factors like eating habits, cigarette smoking, substance abuse, sedentary lifestyle, physical inactivity and an un-ending amount of stress.
Non Modifiable Factors | Modifiable Factors |
Family History – about 5% of all cancers have a strong correlation with family history. Ex: ● Retinoblastoma-about 40% patients have a family history of the same. ● Multiple endocrine neoplasia ● Breast cancer-daughters or close female relatives of a breast cancer patient have a 3-fold risk of developing breast cancer. ● Neurofibromatosis I and II
Racial and Geographic factors: ● Cancer of lung, breast and colon are common among Europeans and Americans ● Cancer of skin, liver, penis and cervix are common among Africans ● Cancer of stomach is commonly seen among Japanese people ● Cancer of breast, liver, cervix, oral cavity is common among Indians.
Sex – some tumors have affinity to certain genders Ex: Lung cancer is seen more commonly in men than in women.
Infection – oncogenic viruses can invade the body via viral infection with: ● Human T-cell Leukemia Lymphoma Virus type-I (HTLLV) ● Human Papilloma Virus (HPV) ● Epstein-Barr Virus (EBV) ● Hepatitis-B Virus (HBV)
Exposure to ionizing radiation as a part of treatment for some other type of cancer. | Cigarette smoking – Associated with cancer of oral cavity, pharynx, larynx and lungs
Alcohol Abuse – Linked to cancer of stomach, esophagus, liver and urinary tract.
Cancer of cervix is related to multiple partners, age at first coition and unprotected coition.
Chewing Tobacco – Related to cancer of cheek and tongue
Occupational exposure – To carcinogenic agents like: ● Benzene ● Asbestos ● Lead ● Vinyl chloride ● Exposure to radiation, etc.
Dietary habits – Low quality diet like junk and fried food and less intake of fruits and vegetables are linked to less intake of anti-oxidants
Obesity – Overweight individuals have a high risk of developing colon cancer due to high fats and less fiber content in diet.
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Clinical features of malignant tumors will be seen both, because of local effects of that tumor and certain systemic effects since it invades other structures as well.
Local effects | Systemic effects |
Obstruction or pressure on flow of blood or other fluids like bile or cerebrospinal fluid.
Bleeding or ulceration is commonly seen in gastric, colonic and renal cell carcinomas
Infection of organs due to obstruction such as pneumonia and urinary tract infection
Rupture of a malignant tumor – cancers of ovary, bladder and colon tend to rupture
| Fatigue – because of loss of muscle function and occasionally sleep disturbances.
Anemia from bleeding, cytotoxic drugs, radiation and involvement of bone marrow.
Cachexia – constitutional symptoms like weight loss, fever, loss of appetite and progressive weakness
Paraneoplastic syndrome – certain malignant tumors start to release hormones Ex: ● Hypoglycemia due to insulin like substance secreted by a fibrosarcoma ● Secretion of parathyroid like hormone from a colorectal adenocarcinoma |
Timely diagnosis and detection of a malignant tumor is extremely important to mange and eliminate the tumor and its arrest its progress at an early stage. Most commonly used diagnostic techniques for malignant tumors are
Treatment and management of malignant tumors depends entirely on their growth and spread. Some treatment options available are:
Usually malignant tumors are diagnosed at much later stage when signs and symptoms become alarming. Therefore, it is impossible to treat cancer without the help of the above mentioned treatment strategies.
However, certain natural remedies can be taken to not just attempt to treat malignant tumors naturally, but also to prevent the risk of having cancer.
None of these above remedies are meant to substitute conventional treatment of malignant tumors. Also, certain herbs may react adversely with your regular medications and so it is important to consult your physician or oncologist before taking any herbal medicines.
Medically Reviewed By
Dr. Himanshi is a Homoeopathic consultant and currently working as a lecturer in Post-graduate faculty of Homeopathy, Parul University, Vadodara. Completed BHMS and MD in Homeopathy in January 2018 and also has a clinical experience of about 6 years. Personal interests include reading, spending time with family and traveling.
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