# Differential Diagnosis Guide — Thoracic Radiology

> Medical app for thoracic radiology differential diagnoses and chest CT findings. (iPhone/iPad app by RADIOLOGiQ, LLC.)

- Source: https://appshunter.io/ios/app/differential-diagnosis-guide/id523946690 (this page in markdown: same URL + `.md`)
- Developer: [RADIOLOGiQ, LLC](https://appshunter.io/developer/519524135)
- Category: Medical, Education
- Price: Free
- Rating: 4.50/5 from 22 App Store ratings · 9 written reviews indexed
- Age rating: 12+
- Requires: iOS 8.0 · 48 MB
- Languages: American English
- Released: 2012-05-24
- Data updated: 2026-06-04
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/differential-diagnosis-guide/id523946690/reviews.md

## What is Differential Diagnosis Guide?

Thoracic Radiology Differential Diagnosis Guide is a convenient way to review differential diagnoses for chest CT findings and discover common CT imaging presentations associated with many diseases. Explore hundreds of diseases and imaging findings using the powerful search tool or browse through countless meticulously curated differential diagnosis lists by alphabetical order or by organ system. Includes over 100 meticulously curated CT images.

An invaluable resource for radiologists, residents, fellows, and medical students at an unmatched price.

Browse
· Nearly 80 different top thoracic radiology differential diagnosis lists
· Broad range of differential diagnoses encompassing: lung, pleura, heart, mediastinum, lymphatics, and large airways
· Carefully curated, ranked, and practical differential diagnosis lists for the real world
· Superb CT images help illustrate different CT imaging patterns
· Browse differential diagnoses in alphabetical order or by organ system

Discover
· Powerful search tool accepts a broad range of imaging feature descriptions and will retrieve pertinent differential diagnosis lists
· Search feature can accept a broad range of disease terms and retrieve a list of various differential diagnosis in which the disease appears - a great way to discover the range of imaging features that may be associated with a disease
· Simplify discovery by using voice recognition in the Search field!

Requirements
· Requires a device with iOS 8
· Voice recognition in Search tab requires active internet connection

## Key features

- Review differential diagnoses for chest CT findings
- Discover common CT imaging presentations
- Search hundreds of diseases and imaging findings
- Browse differential diagnosis lists by organ system
- Includes over 100 curated CT images
- Voice recognition search

## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/differential-diagnosis-guide/id523946690/reviews.md

### 5/5 — Very Useful

*2020-04-22*

I wish to have such apps in other radiologic sections Well done

### 5/5 — Ddx to use

*2019-05-19*

I like it

### 5/5 — Wonderful!

*2017-05-17*

I use this app all the time. Thank you for taking the time to develop it and offer for free!

### 5/5 — excellent app!

*2015-11-15*

Well-explained images...

### 5/5 — Amazing radiology app

*2015-02-23*

Incredible app. Makes my day to day work life infinitely easier. Great graphics!

### 5/5 — Quick Reckoner

*2015-02-18*

Very handy and accurate differential diagnosis. Thank you.

### 3/5 — Nice

*2015-01-19*

Nice app, but it would be nice if there was an option to view the images in full screen.

### 5/5 — Excellent

*2014-11-16*

Good contribution towards medical education . Hope you make other applications as well... Thanks

### 5/5 — Title

*2012-05-27*

Great app!!!

## Frequently asked questions about Differential Diagnosis Guide

### What is Differential Diagnosis Guide?

Differential Diagnosis Guide is a free medical reference app designed to help users review differential diagnoses for chest CT findings and discover common CT imaging presentations associated with various diseases. It provides curated lists and a search tool for efficient learning.

### Who is the target audience for Differential Diagnosis Guide?

This app is an invaluable resource for radiologists, residents, fellows, and medical students who need to study or review thoracic radiology.

### Does Differential Diagnosis Guide have ads?

No, Differential Diagnosis Guide does not contain advertisements. It is a free application that offers its content without interruption from ads.

### What are the system requirements for Differential Diagnosis Guide?

Differential Diagnosis Guide requires a device with iOS 8 or later. The voice recognition feature in the search tab necessitates an active internet connection.

### How often is Differential Diagnosis Guide updated?

The latest version of Differential Diagnosis Guide is 5.4, which was last updated on November 21, 2018. Users can expect a stable experience based on its last update.

### What kind of content does Differential Diagnosis Guide offer?

The app features nearly 80 different top thoracic radiology differential diagnosis lists, covering lung, pleura, heart, mediastinum, lymphatics, and large airways. It also includes over 100 meticulously curated CT images to illustrate imaging patterns.

### Can I search for specific diseases in Differential Diagnosis Guide?

Yes, the powerful search tool in Differential Diagnosis Guide accepts a broad range of imaging feature descriptions and disease terms. It can retrieve pertinent differential diagnosis lists or show diseases associated with specific imaging features.

### What is the age rating for Differential Diagnosis Guide?

Differential Diagnosis Guide has an age rating of 12+, making it suitable for older students and professionals in the medical field.

## Version history (last 5 releases)

### 5.4 — 2018-11-21

Support for iPhone XS Max, 11-inch iPad Pro, and 12.9-inch iPad Pro (3rd generation) devices.

### 5.3 — 2017-11-05

- iPhone X layout improvements
- iOS 11 layout improvements

### 5.1.1 — 2017-07-17

• Minor UI updates

### 5.1 — 2015-11-12

· UI improvements, including new organ system filtering menu
· Support for split screen multitasking on iPad Air 2, iPad mini 4, and iPad Pro running iOS 9
· Replacement of Helvetica Neue font with San Francisco font
· Support for portrait and landscape orientations on iPad
· iPad Pro support
· iOS 9 support

### 5.0 — 2015-03-30

· New user interface, plus a custom interface specially designed for iPad
· Many lists now offer multiple image example - just swipe
· New "random" feature displays a random differential diagnosis list for quick refresher or review 
· More than 10 new differential diagnosis lists added, including:
     - random/miliary lung nodules
     - pleural calcification
     - pleural thickening
     - cardiac mass
     - pericardial calcification
     - mediastinal cysts
     - lytic rib lesions

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## More apps by RADIOLOGiQ, LLC

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All apps by RADIOLOGiQ, LLC: https://appshunter.io/developer/519524135

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-04.*