---
title: What's Your Medical Diagnosis? 34y Male, diarrhea, weakness
description: "Test your medical diagnosis skills with NEJM cases - 34 year old Male, South America, with diarrhea and weakness. Answer: IBS, HIV"
---

[Isabel Healthcare Blog ](https://info.isabelhealthcare.com/blog)

# [What's Your Medical Diagnosis? 34y Male, diarrhea, weakness](https://info.isabelhealthcare.com/blog/medical-diagnosis-diarrhea-weakness)

 Written by [Megan Pennie](https://info.isabelhealthcare.com/blog/author/megan-pennie) | Thu, Mar 22, 2012 @ 01:22 PM

Test your medical diagnosis skills with NEJM cases and use Isabel to assist you in developing your differential. Get a free trial of Isabel to get started now.

## About the Isabel Diagnosis Challenge

The [**New England Journal of Medicine**](http://content.nejm.org/) (NEJM) publishes presentations of common diseases and unusual cases in the Clinical pathology Conference (CPC) series. The cases are educational and can pose diagnostic challenges even to the expert physicians.

<http://nejm.org/>Using the clinical features of these cases, evaluate your diagnostic skills and compare your performance to that of the physicians at MGH. If you are an Isabel client or have a free-trial subscription, use the diagnosis system to get a list of likely diagnoses.

## Today's Case

**Demographic**: Male, 34 years, South America (temperate)  
**Clinical features:**

- chronic diarrhea
- periodic paralysis
- foul smelling stools
- abdominal cramps
- weight loss
- hypokalemia

**STOP!**  
**Before you continue, construct your own:**

1. Complete differential diagnosis 
2. Final diagnosis

**Differential Diagnoses considered by the MGH panel:**  
Irritable bowel syndrome

**Final Diagnosis of the case according to NEJM:**  
(i) Cystoisospora belli enteritis (ii)HIV infection

**Differential Diagnoses of the case as given by Isabel:**  
Irritable bowel syndrome in Gastro

**Was the final diagnosis given by Isabel:**  
Yes, (i) Cystoisospora belli enteritis in Infectious (ii) HIV infection in Infectious

 

[View full post](https://info.isabelhealthcare.com/blog/medical-diagnosis-diarrhea-weakness)

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