Epidemiology prevalence,investigation and management of Ca prostate
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Added: Jul 09, 2024
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TB of prostate & Prostatitis and prostate Abscess Dr V Vijayasarathy Department of General Surgery
What is the load in India? 10 million cases GUTB develops 2-20% of all pulmonary TB cases
Others In Developing countries 15-20% In the USA 3 cases /100000 In the UK in patients who had concurrent pul.TB 13.5% In an autopsy-based study in Germany 3.1%/ 5424
Epidemiology Primary tuberculosis of prostate is rare. GENITOURINARY TUBERCULOSIS 5-10% of Extra Pulmonary tuberculosis in developed countries 15-20 % in developing countries
Of all GUTB 6.6% is Prostate tuberculosis
Etiology Descending infection Sporer et al -successive hematogenous seeding Predisposing –steroid use On immunosuppressant Rate in patients who had BCG in Ca Bladder
PROSTATIC TB Hematogenous spread from primary focus Usually asymptomatic Voiding symptoms Dysuria Nocturia Pollakiuria due to prostatic enlargement Chronic pelvic pain Sexual dysfunction
Clinical presentation Urethral discharge Painful sometimes blood stained ejaculation Ache in perinium Infertility Dysuria
DRE Enlarged prostate ,hard consistency ,nodular surface Some studies PSA 12ng/ml
INVESTIGATIONS CBC, USG X RAY OF CHEST URINE PCR – SPECIFICITY 98.2%, SENSITIVITY 95.5% TRUS/CT/MRI PSA NEEDLE BIOPSY SEROLOGY
Non -specific granulomatous infections 0.44% in routine prostatectomy 0.29% in needle biopsy 0.77% in TURP AGE GROUP 18-86 MEAN AGE 62 YEARS
Causes of non specific granulomatous infection/prostatitis Treponema pallidum Viruses Fungi Intravesical BCG Due to the blockage of prostatic ducts and stasis of secretions
Pathophysiology Inhalation or Ingestion Multiply in LUNG/GUT EVOKE A COMPLEX SERIES OF IMMUNE RESPONSE RESULTS IN COMPLETE ELIMINATION OF BACTERIA OR FORMATION OF PRIMARY GRANULOMA –GHON FOCUS SLOW REPLICATION RATE ,INTRACELLULAR LOCATION OF THE BACILLI INSIDE THE MACROPHAGE LEADS TO A GAP FOLLOWING PRIMARY INFECTION FOR CLINICAL GUTB TO DEVELOP
Nucleic acid amplification tests (NAATs) Results in 2-48 hours Classified by their mechanism Polymerase chain reaction PCR Ligase Chain reaction Variants of PCR- Xpert MTB/RIF assay simultaneously detects mycobacterium tuberculosis complex(MTBC) and resistance to RIFAMPICIN in less than 2 hours
Polymerase chain reaction results in 6 hrs Highly sensitive more than 90% Specificity of more than 95% When compared culture –sensitivity37% Bladder biopsy 47% Intravenous pyelography 88%
PCR tests in near equivalent quality Genus –specific 16S rRNA PCR test Species-Specific IS6110 PCR test Roche Ampicor MTB PCR test Amplified M tuberculosis DIRECT DETECTION TEST (AMDT)
Low numbers of mycobacteria Detected with DNA probes provide species specification in a few hours Staining with Auramine or Rhodamine and examination via fluorescence microscopy Luciferase Bioluminescence is used in diagnosis of tuberculosis and AID in susceptibility testing
Radiography X Ray chest, 50% normal USG cystic or cavitary lesions KUB CT adjunct to IVU CECT MRI High Resolution TRUS
Urine studies Serial early –morning urine cultures (at least 3) for Acid fast bacilli. Still considered the criterion standard for evidence of active tubercular disease .sensitivity of 65% and specificity 100%. To be done immediately. L J medium results in 4 weeks BACTEC 360 MEDIUM IN 2-3 DAYS RADIOMETRIC
PSA Elevated in third of the patients
Procedures FNA -Minimally invasive plays a prime role in the diagnosis of tubercular lesions in GUTB. AFB yield 60% To be avoided if neoplasm is suspected Histologic findings in GUTB finding similar to TB elsewhere. Similar changes in TCC treated with BCG Trans rectal USG guided needle biopsy
Surgical ꝶ Trans urethral incision TURP Open perineal drainage
Normal
Needle biopsy
Prostatic TB Treatment Rifampicin 10mg/kg Isoniazid 5mg/kg Pyrazinamide 1gram Ethambutol 800mg First 2 months The first 2 drugs for 4 months
In MDR TB Fluroquinolone Bedaquiline Delamanid Aminoglycosides 18 to 24 months