PROSTATE CANCER
Prostate is a glandular organ present only in
males. It surrounds the neck of bladder & the first part of urethra
and condributes a secretion to the semen. The gland is conical in shape and
measures 3 cm in vertical diameter and 4 cm in transverse diameter.It has got
five lobes anterior,posterior,two lateral and a median lobe.Since the
first part of the urethra pass through it any lesion in the prostate will
produce difficulty in passing urine.
Diseases of the prostate gland:-
1) Prostatitis - This is the inflamation of
the prostate gland due to bacterial infection.
2) Benign enlargement of the prostate - This
is a non cancerous tumour of the prostate seen after the age of 50.
3,Cancer of the prostate:-This is the 4th most common cause of death from
malignant diseases in males.
Cancer of the prostate.
Cancer of the prostate is directly linked
with the male sex hormones(androgens).If the levels of sex hormone increases
the growth rate of cancer also increases.It is found that after the removel of
testes there is marked reduction in the size of tumour.
Site of tumour - Prostate cancer is seen
mainly in the posterior lobe. Non cancerous enlargement is seen in other lobes.
Changes in the gland in cancer - The gland
becomes hard with irregular surface with loss of normal lobulation
.Histologically prostate cancer is an adeno carcinoma(cancer of the epithelial
cells in the gland)
Growth - Growth rate is very fast in prostate
cancer .The tumour compresses the urethra and produce difficulty in urination.
Spread of tumour - Metastasis in cancer of
prostate is very early.
1) Local spread - From the posterior lobe the
cancer cells go to the lateral lobes and seminal vesicles.Tumour cells also
move to the neck and base of the urinary bladder.
2) Lymphatic spread - Through the lymph
vessels cancer cells reach the internal and external illiac group of lymph
nodes.From there cells move to retroperitonial(Behind the peritonium) and
mediastinal lymph nodes(in the chest)
3) Spread through the blood - Spread of
cancer cells takeplace through the periprostatic venous plexus and reaches the
vertebral veins while coughing and sneezing and finally enders the vertebral
bodies of the lumbar vertebrae.
Signs and symptoms of prostate cancer - Signs
and symptoms depend upon the stage of the cancer. The following symptoms may be
seen.
1) No symptoms - Tumour is small and only in
the posterior lobe. This is diagnosed accidentely.
2) Slight difficulty in urination - Here the
tumour is enlarged and urethra is slightly compressed.Shortly there will be
frequent urge for urination with difficult urination.
3) When the tumour spread to all nearby areas
including neck of bladder and urethra there will be painful urination with
bleeding.Urine comes drop by drop.
4) Retention of urine - When the urethra is
completely compressed there will be retention of urine.This can lead to
hydronephrosis, renal failure ect.In this condition patient may get convulsions
due to renal failure and finally coma.
5) Signs of metastasis - Some patients come
with the signs and symptoms of metastasis.
a) Lumbo sacral pain due to spread of cancer
cells to lumbar and sacral vertebrae.
b) Fracture of spine due to cancerous growth
in the spine.
c) Swelling, pain and fluid collection in the
abdomen due to lesion in the abdomen.
d) Respiratory complaints due to cancer of
mediastinal lymphnodes and lungs.
e) General weakness due to spread of cancer
to different parts of the body.
f) Anaemia due to involment of bone marrow
and increased destruction of RBCs.
Clinical examination - Includes per rectal
examination to feel the prostate gland,palpation of abdomen to feel the
swelling in kidneys and any tumours.Patient is examined from head to foot to
find out any lesions.
Investigations - Complete blood
investigations;-
RBC,WBC,Platlets,ESR,bleeding time ,clotting
time ect.
2) Urine analysis - Microscopic examination
to detect pus cells,occult blood,casts,Crystals ect.
3) Renal function tests - Blood urea
level,serum creatinine level,electrolyte level ect.
4) Serum acid phosphatase - Increased in
cancer of prostate.
5) x-ray of the spine - To detect any tumour
or fracture.
6) Ultra sonography - Gives idea about
prostate,bladder,kidney ect.
7) C T scan - More detailed information about
organs and tumour.
8) MRI of the spine - Gives detailed
information about spine ,disc and nearby soft tissues.
9) Lymphangiography - Gives idea about
lymphatic spread of cancer.
10) Biopsy to confirm cancer - Biopsy is
taken from the tumour and is send for histopathological examination under the
microscope.This will detect the presence of cancer cells.
Treatment
1) If there is retention of urine
catheterisation is needed.
2) Dialysis if kidney failure.
3) If there is coma monitoring of all vital
functions along with parentral nutrition and electolyte supply.
4) Specific treatment is
prostatectomy(removal of prostate)
Partial prostatectomy
Here only the affected lobe is removed.
Radical prostatectomy
Total removal of prostate along with nearby
lymphnodes.
5, Hormone therapy - Stilbestrol is given to
reduce tumour growth.Since this treatement increases the chance for
cardiovascular disease phosphorylated diethyle stilbesterol is used nowadays.
6) Chemotherapy - Drugs like
cyclophosphamide, cisoplatim ect are given.
7) Radiotherapy is also done for some cases.
8) Homoeopathy - Homoeopathic drugs like
carcinocin, conium, sabal, crotalus, thuja, iodum, selinium, staphysagria,
sulphur ect can be given according to symptoms.Constitutional homoeopathic
medicine will give great relief and can increase the life span.
9) Yoga and meditation is also healpful.
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