Tumours Flashcards
List the main benign renal tumours
Renal cysts Fibroma Adenoma Oncotyma Angiomyolipoma Juxtaglomerular cell tumour (JGCT)
Which area of the kidney do fibromas originate from?
Medulla
Which area of the kidney do adenomas originate from?
Cortex
Which condition is associated with angiomyolipoma?
Tuberous sclerosis
JGCT can cause primary hypertension. True/False?
False
Secondary hypertension; secrete renin
List the main malignant renal tumours
Nephroblastoma
Urothelial carcinoma
Renal cell carcinoma
Which malignant renal tumour is commonest in children and adults?
Nephroblastoma in children
Renal cell carcinoma in adults
Where do nephroblastoma arise from?
Embryonic tissue
Residual primitive renal tissue
Where do renal cell carcinoma arise from?
Renal parenchyma
Renal tubular epithelium
List clinical features of renal cell carcinoma
TRIAD: Abdominal mass Haematuria Flank pain Hypercalcaemia Polycythemia (raised RBC)
Renal vein extension is common in renal cell carcinoma. True/False?
True
Can extend into vena cava and right atrium
Which type of renal cell carcinoma is the most common?
Clear cell type - rich in glycogen and lipid
Which malignant tumour affects the area between the pelvicalyceal system to the urethra?
Transitional cell carcinoma (of transitional epithelium)
List risk factors for transitional cell carcinoma
Male >50yo
Dyes
Rubber industry (amine exposure)
Smoking
Where do 75% of transitional cell carcinomas occur?
Region of trigone, leading to ureteric obstruction
What is the main tumour that affects the penis? List types of this tumour. What is the main sign?
Squamous cell carcinoma in situ
Erthroplasia of Queryat (glans, prepuce, shaft)
Bowen’s disease (rest of genitalia)
Red velvety patches
Which group of individuals are particularly susceptible to squamous cell carcinoma of the penis?
Uncircumcised men
Also note poor hygiene + HPV infection
At least 75% of men over 70 are affected by benign nodular hyperplasia of prostate. True/False?
What is BNH?
True
Irregular proliferation of glandular and stromal prostatic tissue
What is the proposed aetiology behind benign nodular hyperplasia of prostate (BNH)?
Hormone imbalance - androgen decreases as get older but oestrogen level remains same; gland is oestrogen responsive
List clinical features of BNH of prostate and general prostatism
Difficulty in starting micturition
Poor stream
Overflow incontinence
How is BNH of prostate managed?
Surgery - transurethral resection
Drugs - alpha blocker, 5-alpha-reductase inhibitor
BNH of prostate is pre-malignant. True/False?
False
Carcinoma of prostate is associated with BNH of prostate. True/False?
False
Not associated but both can occur at once
Why do symptoms of carcinoma of prostate only arise when the disease is more advanced?
Carcinoma arises in peripheral ducts and glands, so peri-urethral (bladder obstructive) area is involved at later stage
What effect can prostate carcinoma have on bone?
OsteoSCLEROTIC metastases
List investigations for prostate carcinoma
PR exam
US/ XR
Prostate Specific Antigen (PSA)
TRUS biopsy
List management for prostate carcinoma
Anti-androgen drug
Radiotherapy if bone metastases
Surgery (prostatectomy)
State a major risk factor for developing testicular tumour
Undescended testes
How do testicular tumours usually present?
Painless insensitive testicular enlargement in males 20-35yo