# An Interesting Case of Anti-Small Ubiquitin-Like Modifier-Activating Enzyme (SAE) Antibody-Positive Dermatomyositis

**Authors:** Smrithi Suresh, Suresh Kumar, Bhargavi M V, Srinivasan Ramadurai, Rajkumar Mani

PMC · DOI: 10.7759/cureus.87833 · Cureus · 2025-07-13

## TL;DR

This paper discusses a rare case of dermatomyositis linked to anti-SAE antibodies, emphasizing the challenges in diagnosis and treatment.

## Contribution

The novelty lies in presenting a rare clinical case of anti-SAE-positive dermatomyositis with steroid resistance.

## Key findings

- Anti-SAE antibodies are associated with distinct cutaneous and systemic features in DM.
- Steroid-refractory cases of anti-SAE-positive DM pose significant therapeutic challenges.
- Early recognition and personalized treatment are crucial for managing this rare DM subtype.

## Abstract

Dermatomyositis (DM) is a heterogeneous autoimmune disease characterized by inflammatory involvement of the skin and muscles. Anti-small ubiquitin-like modifier activating enzyme (SAE) antibodies define a rare clinical subtype of DM, often associated with prominent cutaneous findings and systemic features such as dysphagia. This report presents the case of a 45-year-old male with steroid-refractory, anti-SAE-positive DM, highlighting the diagnostic and therapeutic challenges of this condition and underscoring the importance of early recognition and personalized management.

## Linked entities

- **Diseases:** dermatomyositis (MONDO:0016367), DM (MONDO:0005015)

## Full-text entities

- **Diseases:** inflammatory (MESH:D007249), dysphagia (MESH:D003680), DM (MESH:D003882), autoimmune disease (MESH:D001327)
- **Chemicals:** steroid (MESH:D013256)

## Full text

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## Figures

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## References

10 references — full list in the complete paper: https://tomesphere.com/paper/PMC12341646/full.md

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Source: https://tomesphere.com/paper/PMC12341646