Слайд 3
Tumors of the kidney
The most common kind of
tumor of the kidney is cancer of the renal
parenchyma.
Слайд 4
Tumors of the kidney
The tumors of the kidney
in adults make up 2-3% of the number of
all neoplasm. Men suffer more often than woman.
Слайд 5
Classification of tumors of the kidney
Tumor of the
renal parenchyma:
- Benign tumors: adenoma, angiomyolipoma, lipoma, fibroma, rhabdomyoma,
leiomyoma and other rare benign renal tumours
Слайд 6
Classification of malignant tumors of the kidney in
stages:
Tumor within the limits of renal capsule
Слайд 7
Classification of International Agency for Cancer Research:
T1 –
a tumor of small sizes;
T2 – a large tumor
changing a renal contour;
T3 – extension of tumor to the pararenal tissue, renal vein and vena cava;
T4 – a tumor penetrates contiguous organs of peritoneum
Слайд 8
Classification of International Agency for Cancer Research:
N0 –
there is no damage of regional lymphatic nodes;
N1 –
damage of one regional homolateral lymph node;
N2 – damage of bilateral or multiple contralateral regional lymph nodes;
Слайд 9
Classification of International Agency for Cancer Research:
N3 –
not dislodged metastatic regional lymph nodes;
N4 – damage of
juxtaregional lymph nodes;
Nx – minimum requirements for recognition of a state estimation of regional lymph nodes are not fullfilled;
Слайд 10
Classification of International Agency for Cancer Research:
M0 – absence of the distant metastates;
M1 – presence
of the distant metastases;
M x – minimum requirements for recognition of the distant metastases are not fulfilled
Слайд 11
Benign Tumors of the kidney
Adenoma of the cortex
of the kidney
is a small dense tumor. Adenomas
almost always proceed asymptomatically, they are found out accidentally, frequently they are multiple.
Слайд 12
Benign Tumors of the kidney
Oncocytomas
are spherical, distinctly
limited formations that may contain radial cicatrix posed in
the center.
Слайд 13
Benign Tumors of the kidney
Angiomyolipomas.
These tumors consist
of blood vessels, muscular elements and fatty tissues. They
arise more often and develop almost exclusively in adult women.
Слайд 14
Malignant Tumors
Renal Cell Carcinoma (Hypernephroma,
Renal Adenocarcinoma)
Слайд 15
Wilms’ Tumor
Wilms’ Tumor is nephroblastoma of the kidney.
The tumor is named in honour of Max Wilms,
who gave its description in 1899.
Слайд 16
Tumors of the Urinary Bladder
Tumors of the urinary
bladder make up about 4% of all neoplasms or
70% of all tumors of the urinary tract, yielding in frequency only to tumors of the stomach, esophagus, lungs and larynx.
Слайд 17
Tumors of the Urinary Bladder
According to the world
statistics, frequency of this disease increases. 80% of cases
occur in patients at the age over 50.
Слайд 18
Classification is valid only while observing the following
conditions:
It is applied only to cancer and not used
in case of papilloma.
Слайд 19
Bening Prostatic Hyperplasia
Until recently benign prostatic hyperpasia was
considered as rather age and hormone dependent surgical disease.
It was known, that for its development, as a minimum, two conditions are necessary.
Слайд 20
Bening Prostatic Hyperplasia
The prostate gland is the male
organ most commonly afflicted with either benign or malignant
neoplasms.
Слайд 21
Bening Prostatic Hyperplasia
The posterior surface of the prostate
is separated from the rectal ampulla by Denonvilliers' fascia.
Слайд 22
Bening Prostatic Hyperplasia
The normal prostate measures 3–4 cm
at the base, 4–6 cm in cephalocaudad, and 2–3
cm in anteroposterior dimensions.
Слайд 23
Bening Prostatic Hyperplasia
Incidence & Epidemiology
Слайд 24
Bening Prostatic Hyperplasia
BPH is the most common benign
tumor in men, and its incidence is age-related.
Слайд 25
Bening Prostatic Hyperplasia
At age 55, approximately 25% of
men report obstructive voiding symptoms.
Слайд 26
Bening Prostatic Hyperplasia
Risk factors for the development of
BPH are poorly understood.
Слайд 27
Bening Prostatic Hyperplasia
Etiology
Слайд 28
Bening Prostatic Hyperplasia
The etiology of BPH is not
completely understood, but it seems to be multifactorial and
endocrine controlled.
Слайд 29
Bening Prostatic Hyperplasia
Observations and clinical studies in men
have clearly demonstrated that BPH is under endocrine control.
Слайд 30
Bening Prostatic Hyperplasia
The latter may suggest that the
association between aging and BPH might result from the
increased estrogen levels of aging causing induction of the androgen receptor, which thereby sensitizes the prostate to free testosterone.
Слайд 31
Bening Prostatic Hyperplasia
Symptoms
Слайд 32
Bening Prostatic Hyperplasia
As discussed above, the symptoms of
BPH can be divided into obstructive and irritative complaints.
Слайд 33
Bening Prostatic Hyperplasia
A detailed history focusing on the
urinary tract excludes other possible causes of symptoms that
may not result from the prostate, such as urinary tract infection, neurogenic bladder, urethral stricture, or prostate cancer.
Слайд 34
Bening Prostatic Hyperplasia
Signs
Слайд 35
Bening Prostatic Hyperplasia
A physical examination, DRE, and focused
neurologic examination are performed on all patients.
Слайд 36
Bening Prostatic Hyperplasia
Laboratory Findings
Слайд 37
Bening Prostatic Hyperplasia
A urinalysis to exclude infection or
hematuria and serum creatinine measurement to assess renal function
are required.
Слайд 38
Bening Prostatic Hyperplasia
Serum PSA is considered optional, but
most physicians will include it in the initial evaluation.
Слайд 39
Bening Prostatic Hyperplasia
Imaging
Слайд 40
Bening Prostatic Hyperplasia
Upper-tract imaging (intravenous pyelogram or renal
ultrasound) is recommended only in the presence of concomitant
urinary tract disease or complications from BPH (e.g., hematuria, urinary tract infection, renal insufficiency, history of stone disease).
Слайд 41
Bening Prostatic Hyperplasia
Cystoscopy is not recommended to determine
the need for treatment but may assist in choosing
the surgical approach in patients opting for invasive therapy.
Слайд 42
Bening Prostatic Hyperplasia
Cystometrograms and urodynamic profiles are reserved
for patients with suspected neurologic disease or those who
have failed prostate surgery.
Слайд 43
Bening Prostatic Hyperplasia
Differential Diagnosis
Слайд 44
Bening Prostatic Hyperplasia
Other obstructive conditions of the lower
urinary tract, such as urethral stricture, bladder neck contracture,
bladder stone, or CaP, must be entertained when evaluating men with presumptive BPH.
Слайд 45
Bening Prostatic Hyperplasia
A urinary tract infection, which can
mimic the irritative symptoms of BPH, can be readily
identified by urinalysis and culture; however, a urinary tract infection can also be a complication of BPH.
Слайд 46
Bening Prostatic Hyperplasia
Likewise, patients with neurogenic bladder disorders
may have many of the signs and symptoms of
BPH, but a history of neurologic disease, stroke, diabetes mellitus, or back injury may be present as well.
Слайд 47
Bening Prostatic Hyperplasia
Treatment
Слайд 48
Bening Prostatic Hyperplasia
After patients have been evaluated, they
should be informed of the various therapeutic options for
BPH. It is advisable for patients to consult with their physicians to make an educated decision on the basis of the relative efficacy and side effects of the treatment options.
Слайд 49
Bening Prostatic Hyperplasia
Specific treatment recommendations can be offered
for certain groups of patients. For those with mild
symptoms (symptom score 0–7), watchful waiting only is advised.
Слайд 50
Bening Prostatic Hyperplasia
Watchful Waiting
Слайд 51
Bening Prostatic Hyperplasia
Very few studies on the natural
history of BPH have been reported.
Слайд 52
Bening Prostatic Hyperplasia
Retrospective studies on the natural history
of BPH are inherently subject to bias, related to
patient selection and the type and extent of follow-up.
Слайд 53
Bening Prostatic Hyperplasia
As mentioned above, watchful waiting is
the appropriate management of men with mild symptom scores
(0–7).
Men with moderate or severe symptoms can also be managed in this fashion if they so choose.
Neither the optimal interval for follow-up nor specific endpoints for intervention have been defined.
Слайд 54
Bening Prostatic Hyperplasia
Medical Therapy
Alpha Blockers
Слайд 55
Bening Prostatic Hyperplasia
The human prostate and bladder base
contains alpha-1-adrenoreceptors, and the prostate shows a contractile response
to corresponding agonists.
Слайд 56
Bening Prostatic Hyperplasia
5 α -Reductase Inhibitors
Слайд 57
Bening Prostatic Hyperplasia
Finasteride is a 5 α -reductase
inhibitor that blocks the conversion of testosterone to dihydrotestosterone.
Слайд 58
Bening Prostatic Hyperplasia
Several randomized, double-blind, placebo-controlled trials have
compared finasteride with placebo.
Слайд 59
Bening Prostatic Hyperplasia
However, optimal identification of appropriate patients
for prophylactic therapy remains to be determined.
Слайд 60
Bening Prostatic Hyperplasia
Phytotherapy refers to the use of
plants or plant extracts for medicinal purposes.
Слайд 61
Bening Prostatic Hyperplasia
Conventional Surgical Therapy
Transurethral Resection of the
Prostate (TURP)
Слайд 62
Bening Prostatic Hyperplasia
Ninety-five percent of simple prostatectomies can
be done endoscopically.
Слайд 63
Bening Prostatic Hyperplasia
Much controversy revolves around possible higher
rates of morbidity and mortality associated with TURP in
comparison with those of open surgery, but the higher rates observed in one study were probably related to more significant comorbidities in the TURP patients than in the patients undergoing open surgery.
Слайд 64
Bening Prostatic Hyperplasia
Several other studies could not confirm
the difference in mortality when results were controlled for
age and comorbidities.
Слайд 65
Bening Prostatic Hyperplasia
Clinical manifestations of the TUR syndrome
include nausea, vomiting, confusion, hypertension, bradycardia, and visual disturbances.
Слайд 66
Bening Prostatic Hyperplasia
Men with moderate to severe symptoms
and a small prostate often have posterior commissure hyperplasia
(elevated bladder neck).
Слайд 67
Bening Prostatic Hyperplasia
Outcomes in well-selected patients are comparable,
although a lower rate of retrograde ejaculation with transurethral
incision has been reported (25%).
Слайд 68
Bening Prostatic Hyperplasia
Open Simple Prostatectomy
When the prostate is
too large to be removed endoscopically, an open enucleation
is necessary.
Слайд 69
Bening Prostatic Hyperplasia
Open prostatectomy may also be initiated
when concomitant bladder diverticulum or a bladder stone is
present or if dorsal lithotomy positioning is not possible.
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Bening Prostatic Hyperplasia
Open prostatectomies can be done with
either a suprapubic or retropubic approach.
Слайд 71
Bening Prostatic Hyperplasia
The dissection plane is initiated sharply,
and then blunt dissection with the finger is performed
to remove the adenoma.
Слайд 72
Bening Prostatic Hyperplasia
In a simple retropubic prostatectomy, the
bladder is not entered.
Слайд 73
Bening Prostatic Hyperplasia
Minimally Invasive Therapy
Laser Therapy
Many different techniques
of laser surgery for the prostate have been described.
Two main energy sources of lasers have been utilized—Nd:YAG and holmium:YAG.
Слайд 74
Bening Prostatic Hyperplasia
Several different coagulation necrosis techniques have
been described.
Слайд 75
Bening Prostatic Hyperplasia
Transurethral Electrovaporization of the Prostate
Transurethral electrovaporization
uses the standard resectoscope but replaces a conventional loop
with a variation of a grooved rollerball.
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Bening Prostatic Hyperplasia
Hyperthermia
Microwave hyperthermia is most commonly delivered
with a transurethral catheter.
Слайд 77
Bening Prostatic Hyperplasia
Transurethral Needle Ablation of the Prostate
Transurethral
needle ablation uses a specially designed urethral catheter that
is passed into the urethra.
Слайд 78
Bening Prostatic Hyperplasia
This technique is not adequate treatment
for bladder neck and median lobe enlargement.
Слайд 79
Bening Prostatic Hyperplasia
High-Intensity Focused Ultrasound
High-intensity focused ultrasound is
another means of performing thermal tissue ablation. A specially
designed, dual-function ultrasound probe is placed in the rectum.
Слайд 80
Bening Prostatic Hyperplasia
This probe allows transrectal imaging of
the prostate and also delivers short bursts of high-intensity
focused ultrasound energy, which heats the prostate tissue and results in coagulative necrosis.
Слайд 81
Bening Prostatic Hyperplasia
Intraurethral Stents
They are usually covered
by urothelium within 4–6 months after insertion.
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Bening Prostatic Hyperplasia
These devices are typically used for
patients with limited life expectancy who are not deemed
to be appropriate candidates for surgery or anesthesia.
Слайд 83
Bening Prostatic Hyperplasia
Transurethral Balloon Dilation of the Prostate
Balloon
dilation of the prostate is performed with specially designed
catheters that enable dilation of the prostatic fossa alone or the prostatic fossa and bladder neck.
Слайд 84
Carcinoma of the Prostate (CaP)
Incidence & Epidemiology
Слайд 85
Carcinoma of the Prostate (CaP)
Prostate cancer is the
most common cancer diagnosed and is the second leading
cause of cancer death in American men.
Слайд 86
Carcinoma of the Prostate (CaP)
The lifetime risk of
a 50-year-old man for latent CaP (detected as an
incidental finding at autopsy, not related to the cause of death) is 40%; for clinically apparent CaP, 9.5%; and for death from CaP, 2.9%.
Слайд 87
Carcinoma of the Prostate (CaP)
Thus, many prostate
cancers are indolent and inconsequential to the patient while
others are virulent, and if detected too late or left untreated, they result in a patient's death.
Слайд 88
Carcinoma of the Prostate (CaP)
Several risk factors for
prostate cancer have been identified. As discussed above, increasing
age heightens the risk for CaP.
Слайд 89
Carcinoma of the Prostate (CaP)
African Americans are at
a higher risk for CaP than whites. In addition,
African American men tend to present at a later stage of disease than whites.
Слайд 90
Carcinoma of the Prostate (CaP)
The age of disease
onset in the family member with the diagnosis of
CaP affects a patient's relative risk.
Слайд 91
Carcinoma of the Prostate (CaP)
High dietary fat intake
increases the relative risk for CaP by almost a
factor of 2.
Слайд 92
Carcinoma of the Prostate (CaP)
Etiology
The specific molecular mechanisms
involved in the development and progression of CaP are
an area of intense interest in the laboratory.
Слайд 93
Carcinoma of the Prostate (CaP)
Pathology
Over 95% of the
cancers of the prostate are adenocarcinomas.
Слайд 94
Carcinoma of the Prostate (CaP)
Symptoms
Most patients with early-stage
CaP are asymptomatic. The presence of symptoms often suggests
locally advanced or metastatic disease.
Слайд 95
Carcinoma of the Prostate (CaP)
Metastatic disease to the
bones may cause bone pain.
Слайд 96
Carcinoma of the Prostate (CaP)
Signs
A physical examination, including
a DRE, is needed.
Слайд 97
Carcinoma of the Prostate (CaP)
Locally advanced disease with
bulky regional lymphadenopathy may lead to lymphedema of the
lower extremities.
Слайд 98
Carcinoma of the Prostate (CaP)
Laboratory Findings
Azotemia can result
from bilateral ureteral obstruction either from direct extension into
the trigone or from retroperitoneal adenopathy.
Слайд 99
Carcinoma of the Prostate (CaP)
Tumor Markers—Prostate-Specific Antigen (PSA)
Serum
PSA has revolutionized our ability to detect CaP. Current
detection strategies include the efficient use of the combination of DRE, serum PSA, and TRUS with systematic biopsy. Unfortunately, PSA is not specific for CaP, as other factors such as BPH, urethral instrumentation, and infection can cause elevations of serum PSA.
Although the last two factors can usually be clinically ascertained, distinguishing between elevations of serum PSA resulting from BPH and those related to CaP remains the most problematic.
Слайд 100
Carcinoma of the Prostate (CaP)
Prostate Biopsy
Systematic sextant prostate
biopsy was the most commonly employed technique used in
detecting CaP.
Слайд 101
Carcinoma of the Prostate (CaP)
Information from sextant biopsies
has mainly focused on cancer detection and has been
underutilized for cancer staging.
Слайд 102
Carcinoma of the Prostate (CaP)
TRUS
TRUS is useful in
performing prostatic biopsies and in providing some useful local
staging information if cancer is detected.
Слайд 103
Carcinoma of the Prostate (CaP)
TRUS provides more accurate
local staging than does DRE.
Слайд 104
Carcinoma of the Prostate (CaP)
Endorectal Magnetic Resonance Imaging
The
reported staging accuracy of endorectal coil magnetic resonance imaging
(MRI) varies from 51% to 92%.
Слайд 105
Carcinoma of the Prostate (CaP)
Differential Diagnosis
Not all patients
with an elevated PSA concentration have CaP.
Слайд 106
Carcinoma of the Prostate (CaP)
Sclerotic lesions on plain
x-ray films and elevated levels of alkaline phosphatase can
be seen in Paget disease and can often be difficult to distinguish from metastatic CaP.
Слайд 107
Carcinoma of the Prostate (CaP)
Treatment
Localized Disease
General Considerations
The optimal
form of therapy for all stages of CaP remains
a subject of great debate.
Слайд 108
Carcinoma of the Prostate (CaP)
Treatment dilemmas persist in
the management of localized disease (T1 and T2) because
of the uncertainty surrounding the relative efficacy of various modalities, including radical prostatectomy, radiation therapy, and surveillance.
Слайд 109
Carcinoma of the Prostate (CaP)
Watchful Waiting
No randomized trial
has demonstrated the therapeutic benefit of radical treatment for
early-stage prostate cancer.
Слайд 110
Carcinoma of the Prostate (CaP)
In addition, the small,
well-differentiated prostate cancers commonly found in this population are
often associated with very slow growth rates.
Слайд 111
Carcinoma of the Prostate (CaP)
Radical Prostatectomy
The first radical
perineal prostatectomy was performed by Hugh Hampton Young in
1904, and Millin first described the radical retropubic approach in 1945.