Pomeranz MRI classification of Achilles tendon disorders

Last revised by Henry Knipe on 27 Jun 2023

Citation, DOI, disclosures and article data

Citation:

Nicoletti D, Knipe H, Pomeranz MRI classification of Achilles tendon disorders. Reference article, Radiopaedia.org (Accessed on 07 Jun 2024) https://doi.org/10.53347/rID-170813

DOI:

https://doi.org/10.53347/rID-170813

Permalink:

https://radiopaedia.org/articles/170813

rID:

170813

Article created:

23 Jun 2023, Domenico Nicoletti ◉

Disclosures:

At the time the article was created Domenico Nicoletti had no financial relationships to ineligible companies to disclose.

View Domenico Nicoletti's current disclosures

Last revised:

27 Jun 2023, Henry Knipe ◉

Disclosures:

At the time the article was last revised Henry Knipe had the following disclosures:

Integral Diagnostics, Shareholder (ongoing)
Micro-X Ltd, Shareholder (ongoing)

These were assessed during peer review and were determined to not be relevant to the changes that were made.

View Henry Knipe's current disclosures

Revisions:

2 times, by 2 contributors - see full revision history and disclosures

Systems:

Musculoskeletal

Sections:

Classifications

Tags:

cases, case3

Synonyms:

Pomeranz MRI classification of Achilles tendon pathology

The Pomeranz MRI classification of Achilles tendon disorders classifies grade 0 as normal tendon, grades IA, IB, and II as abnormal intratendinous signal (tendinopathy), and grade III as complete rupture with retraction.

Classification

grade 0: homogeneous hypointensity (normal) ± peritendinous fluid
grade I-A: T1 hypointense signal disappears on T2
grade I-B: intratendinous isointensity T1 (<50% of the tendon), intratendinous iso- or hyper-intensity T2
grade II: intratendinous isointensity T1 (>50% of the tendon), intratendinous iso- or hyper-intensity T2, attenuated size
grade III: tendon transaction with retraction and peritendinous T1 hypointensity, T2 hyperintensity