Scrotal Lump – OSCE Case

Onset: When did he first notice the swelling?

Size: Has the swelling grown?

Pain: Is it painful or painless? It may be useful to use the SOCRATES framework for inquiring about pain.

• Site
• Onset of pain (e.g. sudden, gradual)
• Character (e.g. sharp, dull)
• Radiation
• Associated symptoms with pain (e.g. nausea, vomiting)
• Timing (e.g. is the pain related to anything?)
• Exacerbating & relieving factors (i.e. things that make the pain worse/better)
• Severity (e.g. scale of 1-10)

Was there any preceding trauma?

Associated symptoms: Infective symptoms such as fever or dysuria, systemic symptoms such as weight loss or night sweats.

Answer

“I noticed it in the shower a few weeks ago – I didn’t think much at first because it doesn’t hurt, but now I think it’s getting bigger. I feel fine though.”

Sexual history

See the Geeky Medics guide to taking a sexual history.

Past medical history

• Other medical diagnoses (e.g. patients with Klinefelter’s and Kallman’s syndrome have a greater risk of testicular cancer)
• Previous hospitalisations
• Previous abdominal, pelvic or perineal surgeries
• Specifically, ask about a history of childhood cryptorchidism (higher risk of testicular cancer)

Medications/allergies

Family history

Specifically, ask about a family history of testicular cancer.

Social history

• Smoking history
• Alcohol history
• Illicit drug use
• Occupation
• Relationships/family
• Fertility status

Answer

“I’ve never had to come to the hospital before. I’m really worried because my Dad had one of his testicles removed, he had cancer when he was about my age.  My wife and I want a baby- I don’t want to lose mine.”

General examination of the patient: Do they look well? Have they got signs of infection? Do they look cachexic? Are they in pain?

This patient requires a comprehensive testicular and scrotal examination to assess:

• Site of swelling
• Size of swelling
• Shape of swelling
• Colour: Are there overlying skin changes?
• Consistency: Is the lump firm or fluctuant?
• Tenderness: Is it painful to examine?
• Temperature: Is it hot to touch? (may indicate infection)
• Scars: signs of previous surgery.
• Cremasteric reflex/ Prehn’s sign

Chest and abdominal Examination: Specifically examine for palpable lymph nodes or signs of lung metastasis (both signs of testicular cancer).

Findings

• Testicular examination reveals a painless, firm, irregular, intratesticular swelling on the left hemiscrotum
• There are no overlying skin changes
• Transillumination is negative
• Abdominal and respiratory examination are unremarkable

• Urinalysis: may show white cells (infection) or red cells (haematuria)
• Bloods: FBC, U&E, CRP (can consider tumour markers if concerned – bHCG, LDH, AFP)
• Ultrasound scan of the scrotum: this is the recommended first-line investigation for any scrotal lumps
• Chest X-ray/CT: if concerned about malignancy and metastasis

Findings

• Urinalysis is normal
• FBC, U&E and CRP are normal

Benign:

• Epididymo-orchitis
• Hydrocele
• Varicocele
• Hernia
• Epididymal cyst
• Spermatocele
• Testicular torsion

Malignant:

• Germ cell tumour
• Stromal tumour
• Lymphoma
• Secondary malignancy

The most likely diagnosis is a testicular tumour.

See Table 1 for help with distinguishing clinical features of scrotal masses.

Table 1. Distinguishing scrotal masses by key clinical and investigative features

This patient has features suggestive of testicular cancer. The patient will require imaging, a multidisciplinary team (MDT) discussion, subsequent orchidectomy (via groin approach) and counselling about sperm banking.

Management of scrotal lumps depends on the suspected underlying diagnosis. 

In most cases, scrotal ultrasound is a useful investigation

• However, this should not be performed in cases of suspected testicular torsion as immediate scrotal exploration is indicated

Infective causes may be managed with antibiotics or incision and drainage if an abscess is present.

Benign cysts and hydroceles may be left alone unless they are causing discomfort.

An inguinoscrotal hernia should be surgically repaired to prevent complications.