Poster guide

Clinical Case Poster: Structure and Tips for a Case Report

How to structure a clinical case (case report) poster: introduction, case description, discussion, a single message. Outline and tips, backed by medical sources.

July 4, 2026 · 7 min read

Quick answer: how to structure a clinical case poster

A clinical case poster (or case report, or clinical vignette) follows a simple three-part outline: Introduction, Case Description, Discussion. The introduction sets the context and interest of the case; the case description walks through the patient's history, examination, investigations and outcome; the discussion explains the decisions and draws the lesson to take away. A good case poster focuses on a small number of points, sometimes just one.

What is a clinical case poster?

Unlike a quantitative study poster, a clinical case poster tells a situation: a patient, a management, a lesson. It is common in medicine, especially in clinical vignette competitions and sessions. Its strength lies not in a large sample, but in what the case teaches the reader.

The recommended structure

The American College of Physicians (ACP), for its clinical vignette posters, describes three main components.

Introduction

It describes the context of the case and explains its relevance: why the case deserves attention, what it illustrates that is unusual or instructive. A few sentences are enough.

Case Description

This is the heart of the poster. The ACP recommends laying it out in the sequential order of medical communication:

the patient's history (background, presenting complaint);
the physical examination;
the investigative studies;
the patient's progress and outcome.

These are not four separate sections but the steps of a clear narrative, in the order a clinician discovers them.

Discussion

The discussion explains why decisions were made and extracts the lesson from the case. This is where you answer the reader's implicit question: "what does this change for my practice?"

A single message, clearly stated

The ACP stresses: focus on a small number of points, even just one, expressed clearly and succinctly. An observational study on effective case report posters (Willett et al., Journal of General Internal Medicine, 2008) points the same way: a good case poster states clear learning objectives and conclusions tied to those objectives, supported by the content of the case.

In other words: decide what the reader should retain, and make the whole poster converge toward that lesson.

Concision and rigor

A case report stays short. Midwestern University library cites for case reports a target of around 1,500 words, a limited number of references and figures, and recommends following the CARE Guidelines, the international standard for writing case reports (which also stresses the importance of patient consent and anonymization). These benchmarks, meant for the written article, also work as concision guardrails for the poster.

Layout: a case is read from a distance too

A case poster outline is a variant of the IMRaD structure: instead of Methods and Results, you have the Case Description; the logic stays a clear sequence. Everything that applies to a classic poster applies here: legibility from a distance, sharp figures (imaging, diagrams), and a title that announces the lesson. See our article on the IMRaD structure of a poster and the guide how to make a scientific poster.

Creating a clinical case poster with Folio Poster

Folio Poster offers conference-grade templates that share the IMRaD skeleton: you place Introduction, Case Description and Discussion, add your clinical images, and export an A0 or A1 print-ready PDF. A sober theme suits defenses and faculties well; compare layouts on the poster templates page.

In summary

Three-part outline: Introduction, Case Description, Discussion (ACP).
The case description follows the order history, examination, investigations, outcome.
A single message: focus on the lesson to take away.
Concision (~1,500 words), CARE Guidelines, patient consent.
The layout follows the same rules as a classic poster.

Frequently asked questions

How do I structure a clinical case poster?
In three parts, according to the American College of Physicians: Introduction (context and interest of the case), Case Description (history, examination, investigations, outcome), Discussion (decisions and lesson to take away).

What is the difference from a classic research poster?
A case poster tells a clinical situation rather than presenting quantitative results. It is a variant of the IMRaD structure: the Case Description replaces Methods and Results. The poster's strength lies in the lesson of the case, not in sample size.

How much text on a clinical case poster?
As little as possible. Focus on a small number of points, even one. Case reports often aim for 1,500 words at most: a poster should be even tighter, with figures and a clear message.