# Luigi — Pathological Image Retrieval

> Pathological Image Retrieval (iPhone/iPad app by Daisuke Komura.)

- Source: https://appshunter.io/ios/app/luigi/id1246638302 (this page in markdown: same URL + `.md`)
- Developer: [Daisuke Komura](https://appshunter.io/developer/1246638301)
- Category: Medical
- Price: Free
- Age rating: 12+
- Requires: iOS 12.0 · 28 MB
- Languages: American English
- Released: 2017-06-15
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/luigi/id1246638302/reviews.md

## What is Luigi?

This is the client app of Luigi web application which allows you to submit an image of your case easily without special equipment and view the retrieved results on the smartphone.

-----------------

Luigi: Large Scale HistoPathological Image Retrieval System
- https://luigi-pathology.com/

Luigi web application has the following features.
- Use a deep texture representation to calculate relevance metrics between pathological images, which enables the proposed system to find relevant images that do not depend on spatial information, such as the location of cells.
- Not require extra learning; thus, any tissues, cells, and even artifacts can be searched without training.

-----------------

Users can search their own histopathology image in two different databases.

Luigi-Genome

This database contains more than 7,000 cases from 32 cancer types with genomic features and clinical information included in The Cancer Genome Atlas (TCGA) database.  Additionally, registered users can use a function for somatic mutation prediction.
- TCGA: The histopathological images of Luigi are in whole or part based upon data generated by the TCGA Research Network: http://cancergenome.nih.gov/.
- cBioPortal:
Cerami et al. The cBio Cancer Genomics Portal: An Open Platform for Exploring Multidimensional Cancer Genomics Data. Cancer Discovery. May 2012 2; 401.
Gao et al. Integrative analysis of complex cancer genomics and clinical profiles using the cBioPortal. Sci. Signal. 6, pl1 (2013).

Luigi-oral

This database contains 605 cases across 85 oral tumor categories, including salivary gland, odontogenic, and maxillofacial bone tumors.


## Version history (last 5 releases)

### 4.1 — 2024-06-11

The bug related to the correspondence of organs in Luigi-Genome has been fixed.

### 4.0 — 2024-05-23

Discover the latest advancements in pathology with Luigi's major update! 

New Features:

- Luigi-Oral Support: Our latest addition, Luigi-Oral, now covers oral tumors. Easily switch between the existing Luigi-Genome database and the new Luigi-Oral database from the menu.
- Extensive Oral Tumor Database: Luigi-Oral features 605 cases across 85 oral tumor categories, including salivary gland, odontogenic, and maxillofacial bone tumors. 
- Web Access to Immunohistochemistry Images in Luigi-oral: Immunohistochemistry images are available exclusively on our web version (https://luigi-pathology.com). Registered users can  re-search with the query images captured by their iPhone in the "Recently Uploaded" section on the web.

Important Notes:

- Luigi is intended for research purposes only and should not be used for diagnostic purposes.
- Please do not upload images containing personal information.

### 3.1 — 2020-05-14

- Users can register for an account in the app
- Registered users can use a function for somatic mutation prediction.
- The camera has both autofocus and manual focus functions.

### 3.0 — 2019-11-06

Two datasets are available.

1. Luigi-Genome
The database of Luigi-Genome contains more than 7,000 cases from 32 cancer types with genomic features and clinical information included in The Cancer Genome Atlas (TCGA) database.  Additionally, registered users can use a function for somatic mutation prediction.

2. Luigi-ICDO
The database of Luigi-ICDO contains cases from more than 2,000 tumor types in ICD-O (International Classification of Diseases for Oncology) including rare tumors. The database was created from curated images on the Web and image thumbnails with the URL of the original website are shown.

### 2.2 — 2019-10-24

In this version, the software checks the API version of the Luigi Web server.

## Apps similar to Luigi

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Pocket Pathologist](https://appshunter.io/ios/app/pocket-pathologist/id1609678503) | 5.0 (5) | Free | Medical |
| [Case Files: Pathology](https://appshunter.io/ios/app/case-files-pathology/id457739821) | — | Free | Medical |
| [Med * A-Eye Patho](https://appshunter.io/ios/app/med-a-eye-patho/id6467798251) | — | Free | Medical |
| [CytoAtlas](https://appshunter.io/ios/app/cytoatlas/id908735518) | 4.3 (12) | Free | Medical |
| [Small Intestinal Pathology](https://appshunter.io/ios/app/small-intestinal-pathology/id1662003003) | — | $4.99 | Medical |
| [Colonic Pathology](https://appshunter.io/ios/app/colonic-pathology/id1660836383) | — | $4.99 | Medical |

---

*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 2026-05-17.*
