# Incidental Findings of Muscle-Origin Calcifications in the Sternocleidomastoid Muscle on an Orthopantomogram

**Authors:** Francesco Valente, Riccardo Riccardi, Pierluigi Valente, Roberto Del Rosso, Andrea Sbrenna

PMC · DOI: 10.7759/cureus.80016 · Cureus · 2025-03-04

## TL;DR

This case report highlights the rare occurrence of muscle-origin calcifications in the sternocleidomastoid muscle found on a dental X-ray and the need for careful diagnosis.

## Contribution

The novelty lies in the detailed analysis of incidental calcifications in the SCM muscle on an orthopantomogram and their correct identification as dystrophic calcifications.

## Key findings

- Bilateral calcifications were found in the sternocleidomastoid muscle on a routine dental panoramic radiograph.
- The calcifications were diagnosed as dystrophic, with no evidence of trauma or systemic disorders.
- The case emphasizes the importance of considering non-dental anatomical structures in panoramic radiography to prevent misdiagnosis.

## Abstract

Calcifications of muscular origin are rare findings in dental panoramic radiographs and can pose diagnostic challenges if not properly identified. This case report describes the incidental discovery of bilateral calcifications within the sternocleidomastoid (SCM) muscle on a routine dental panoramic radiograph. A comprehensive differential diagnosis was considered, including trauma, inflammation, metabolic disorders, and idiopathic conditions. The absence of systemic disorders or recent trauma supported a diagnosis of dystrophic calcifications of the SCM muscle. This case underscores the importance of evaluating anatomical structures beyond the dental and bony regions in panoramic radiography to avoid misdiagnosis.

## Full-text entities

- **Diseases:** Calcifications (MESH:D002114), systemic disorders (MESH:D009422), inflammation (MESH:D007249), trauma (MESH:D014947), dystrophic calcifications of the SCM muscle (MESH:C535977), metabolic disorders (MESH:D008659)

## Full text

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## Figures

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## References

19 references — full list in the complete paper: https://tomesphere.com/paper/PMC11968077/full.md

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Source: https://tomesphere.com/paper/PMC11968077