Cases/Respiratory Health

Man Told His Chest X-ray Shows Fluid — Free SCA Practice Case

Man told his chest X-ray shows fluid

Station Timer

12:00

Golden Minute

Initial Introduction

•Introduce yourself

•Ask an open question — "How can I help you today?"

•Listen — don't interrupt

•Catch early cues

Data Gathering

History, ICE & Diagnosis

Clinical Management

Diagnosis, Plan & Decisions

Safety Net

Follow-up & Close

12:00

Golden Minute

Materials for Candidate

Please review before starting the consultation

Patient Profile

Full Name

Graham Whitlock

Age

55 years

Consultation Type

Telephone

Age

Situation

Telephone Consultation, booked to discuss a chest X-ray result.

Reason for Encounter

"I've rung about my chest X-ray. I've had this cough for three weeks and the antibiotics haven't touched it — I think I need something stronger."

Medical Records

●PMH: Non-Hodgkin's lymphoma (diagnosed 3 years ago; treated with chemotherapy and radiotherapy; currently in remission on annual oncology follow-up). Hypertension. Fatty liver disease. Hypercholesterolaemia. Depression.
●Medications: Amlodipine 10 mg OD, simvastatin 20 mg nocte, mirtazapine 15 mg nocte.
●Allergies: NKDA.
●Recent notes (2 days ago): 3-week persistent dry cough. Completed amoxicillin 500 mg TDS from the out-of-hours service without improvement. Examination: slightly diminished breath sounds at the left base. BP 135/85, pulse 89, SpO₂ 97% on air, RR 19. Plan: urgent chest X-ray; safety-netting given.
●Chest X-ray report (yesterday): "Moderate left-sided pleural effusion — blunting of the left costophrenic angle with meniscus sign; left hemidiaphragm partially obscured; reduced volume at the left base, likely compressive atelectasis. No focal consolidation. Right lung clear. Cardio-mediastinal silhouette normal. No suspicious bony lesions. Conclusion: left-sided pleural effusion. Clinical correlation advised. Recommend chest ultrasound to assess for drainage, or CT thorax if clinically indicated."

Patient Script

For the friend playing the patient role

Character Overview: You are Graham, a 55-year-old postman who lives with your wife. You have had a dry cough for three weeks — no phlegm, no blood, and no real breathlessness. The out-of-hours GP gave you amoxicillin two weeks ago; you finished the course and it made no difference. You saw a clinician here two days ago who listened to your chest and sent you for an X-ray. You are ringing for the result, expecting to be told you need stronger antibiotics so you can get back to work. Colleagues keep asking why you are coughing, which makes you self-conscious. You had non-Hodgkin's lymphoma three years ago; you were told everything is fine and you are on annual oncology follow-up — your last review was nine months ago and the next is due in three months. If the doctor raises the possibility of cancer, react with genuine shock and say you have no cancer symptoms.

Opening Sentence: "Hello Doctor. I'm ringing about my chest X-ray from yesterday. This cough's been going three weeks now — it's a dry one, no phlegm. The out-of-hours doctor gave me amoxicillin and I finished the lot, and it's made no difference at all. I reckon I need something stronger. People at work keep asking why I'm coughing."

History if Asked (Data Gathering Phase)

●The cough: "Three weeks, dry, no phlegm, no blood. It's persistent rather than getting dramatically worse."
●Breathing: "I haven't noticed being short of breath, no."
●The antibiotics: "Amoxicillin, three times a day, finished the whole course. No difference."
●His lymphoma: "I had non-Hodgkin's lymphoma three years ago — chemo and radiotherapy. They said everything's fine. I see the oncology team once a year; last time was nine months ago."
●What he wants: "Stronger antibiotics, I'd think, so I can get back to work and stop people asking about the cough."

ICE — Ideas, Concerns, Expectations

The patient does not volunteer this information unprompted. These responses surface only when the candidate directly explores his perspective.

●Ideas: Graham believes this is a chest infection that has not responded because the antibiotic was too weak. "I think it's a chest infection and the antibiotics weren't strong enough."
●Concerns: His stated concern is the persistence of the cough and the embarrassment of people commenting on it; he has not considered anything serious. "It's the fact it won't go, and people keep asking about it."
●Expectations: He expects stronger antibiotics. "I want something stronger to shift it."

If Asked — Effusion Cause and Red-Flag Screen

The patient answers these only when directly asked.

●If asked about haemoptysis or sputum: "No blood, and it's a dry cough — no phlegm."
●If asked about weight loss, appetite, or night sweats: "No weight loss, appetite's normal, no night sweats." (No B symptoms.)
●If asked about lumps in the neck, armpits, or groin: "No lumps that I've noticed." (Screens for lymphadenopathy/lymphoma recurrence.)
●If asked about fever or feeling unwell: "No fever, and I feel reasonably well in myself apart from the cough."
●If asked about breathlessness on exertion or at rest, or orthopnoea: "Not really breathless. I sleep flat on one pillow."
●If asked about chest pain, especially pleuritic pain: "No chest pain."
●If asked about leg swelling or calf pain (DVT/PE risk): "No swollen legs, no calf pain."
●If asked about recent travel, immobility, or surgery: "No travel, nothing like that."
●If asked about asbestos or occupational exposure: "I've been a postman for years. No asbestos work that I know of."
●If asked about smoking and alcohol: "Non-smoker, and I don't drink."
●If asked about his oncology follow-up plan: "Annual reviews. Nine months since the last one; next due in three."
●If asked about TB risk/contacts: "No, nothing like that."

Responses to Management (The Negotiation Phase)

●If the Doctor explains the X-ray shows fluid around the lung: "Fluid on my lung? What has caused the fluid to build up in my chest?" (The tested point is explaining a pleural effusion in accessible terms and its possible causes.)
●If the Doctor explains stronger antibiotics are not the answer — the negotiation: "So more antibiotics won't fix this? That's not what I expected at all." (The tested point is declining an inappropriate antibiotic request and explaining why, without leaving him empty-handed.)
●If the Doctor raises the possibility of a serious cause including cancer: "I didn't think this could be cancer. I don't feel like I've got any cancer symptoms." (React with genuine shock. The tested point is introducing serious possibilities honestly and compassionately, and containing the distress.)
●If the Doctor explains the urgent work-up: "So an urgent referral, and scans, and possibly draining the fluid to test it? How quickly?" (The tested point is explaining the urgent pathway — respiratory referral, imaging, and diagnostic pleural aspiration.)
●If the Doctor mentions contacting the oncology team: "Would you tell my cancer doctors, even though my check-up isn't due for three months?"
●If the Doctor safety-nets: "What should I watch for while I'm waiting?"

Mark Scheme

Domain 1: Data Gathering and Diagnosis

0 / 18 indicators checked+0−0

Positive (0/9)

Negative (0/9)

Domain 2: Clinical Management and Medical Complexity

0 / 20 indicators checked+0−0

Positive (0/10)

Negative (0/10)

Domain 3: Relating to Others

0 / 12 indicators checked+0−0

Positive (0/6)

Negative (0/6)

Clinical Learning Points

Recognising a Pleural Effusion on Chest X-Ray

●A pleural effusion appears as blunting of the costophrenic angle with a meniscus sign, obscuring of the hemidiaphragm, and sometimes compressive atelectasis. The absence of focal consolidation argues against pneumonia.

A New Unexplained Pleural Effusion Requires Urgent Investigation

●A new, unexplained pleural effusion is not a primary-care diagnosis to treat empirically — it requires urgent referral for chest ultrasound and/or CT thorax and diagnostic pleural aspiration (including fluid cytology, protein, LDH, glucose, pH, and microbiology).

The Differential — and Why Context Matters

●Causes include malignancy (including lymphoma recurrence, lung cancer, mesothelioma, and metastatic disease), infection/empyema, heart failure, hypoalbuminaemia/liver disease, pulmonary embolism, and tuberculosis. A previous cancer history transforms the significance of the finding — always weigh it.

Failure to Respond to Antibiotics Is Diagnostic Information

●A persistent cough that has not responded to a completed antibiotic course, with an effusion and no consolidation, points away from simple bacterial infection. Escalating antibiotics is not the answer; investigating is.

Lymphoma-Specific Screening

●In a patient with previous lymphoma, screen for B symptoms (weight loss, night sweats, fever) and lymphadenopathy, and include LDH in the blood work-up. Liaise with the oncology team rather than waiting for a routine review.

Introducing the Possibility of Cancer

●When a patient attends expecting something minor, use a warning shot, deliver information at their pace, be honest about the possibilities without presenting the worst case as fact, and contain and respond to their distress. Honesty is necessary for informed engagement with an urgent pathway.

Safety-Netting and Closing the Loop

●Safety-net for worsening or resting breathlessness, chest pain, sepsis features, or haemoptysis, and arrange follow-up to ensure the referral is actioned and results reviewed.

Common Candidate Mistakes in This Case

●Prescribing stronger antibiotics: treating an effusion as resistant pneumonia.
●Not referring urgently: managing a new unexplained effusion with watchful waiting in primary care.
●Ignoring the lymphoma history: failing to weigh recurrence or to involve the oncology team.
●Concealing or bluntly announcing the cancer possibility: either impairing informed engagement, or delivering it without preparation or compassion.
●No safety-netting or follow-up: leaving a patient with an undiagnosed effusion without a route back.

Free MRCGP SCA practice case for GP registrars covering Man Told His Chest X-ray Shows Fluid — Respiratory Health. Includes candidate brief, patient script, marking scheme mapped to the RCGP SCA marking domains, and learning points. Built directly from the RCGP curriculum topic stations listed under "How this might be tested in the MRCGP SCA," part of a free library of 79 SCA practice cases for simulated consultation assessment preparation.

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