{
 "serie": "s6_COR_2D_MERGE",
 "n_imgs": 22,
 "s": 90.9,
 "respuesta": "**MRI right ankle – coronal 2D MERGE series only.** Assessment is limited to the provided coronal sequence.\n\n## Abnormal findings\n\n| Structure | Location | Description | Confidence |\n|---|---|---|---|\n| **Tibiotalar joint fluid / synovium** | Tibiotalar joint, especially anterior/lateral and posterior recesses | Small to mild tibiotalar effusion. Mild capsular/synovial fullness is suspected, particularly in the ankle gutters. | **High** for effusion; **Medium** for synovitis |\n| **Talar dome cartilage/subchondral bone** | Medial talar dome/medial talar shoulder | Focal subtle articular surface irregularity with small subchondral cystic/bright focus, suspicious for a chronic osteochondral/chondral injury. No displaced osteochondral fragment is evident on these images. | **Medium** |\n| **Tibiotalar degenerative change** | Medial tibiotalar joint/medial gutter | Mild marginal irregularity/spurring and medial gutter crowding, compatible with early post-traumatic/degenerative change. | **Medium** |\n| **Subtalar joint fluid** | Posterior subtalar joint region | Trace to small amount of fluid in the posterior subtalar joint/recess. | **Medium** |\n| **Lateral ankle ligament complex** | Anterolateral/lateral gutter region | The ATFL is not well assessed on this coronal series. There is mild anterolateral gutter soft-tissue/capsular irregularity, which could reflect chronic sprain-related scarring/synovitis. No definite acute ligament disruption is visible. | **Low–Medium** |\n\n## Structures without definite abnormality on this series\n\n- **Bones:** No acute fracture, dislocation, or aggressive marrow lesion identified. Hindfoot alignment appears grossly preserved on these coronal images.  \n- **Distal tibiofibular syndesmosis:** No obvious widening or malalignment on this series.  \n- **Deltoid ligament:** Grossly continuous without definite acute tear on the provided images.  \n- **Calcaneofibular ligament:** No clear discontinuity seen; assessment limited.  \n- **Peroneal tendons:** Visible portions appear intact without definite split tear or dislocation.  \n- **Posteromedial tendons:** Posterior tibial, flexor digitorum longus, and flexor hallucis longus tendons appear grossly intact on this series.  \n- **Achilles tendon:** Visible portion appears intact.  \n- **Soft tissues:** No definite soft-tissue mass or focal fluid collection identified."
}