{
 "serie": "s501_DP_SPAIR_TRA",
 "n_imgs": 24,
 "s": 66.5,
 "respuesta": "**Limited assessment:** Only the supplied, uniformly sampled axial PD fat-suppressed images are available. Small cartilage defects and ligament tears cannot be reliably graded without the remaining planes/sequences.\n\n### Abnormal findings\n\n| Location | Description | Confidence |\n|---|---|---|\n| **Tibiotalar joint** | Small-to-moderate effusion, particularly evident in the anterior recess. | **High** |\n| **Subtalar joint** | Small effusion, including fluid in the posterior recess. | **Medium** |\n| **Medial tibiotalar articulation** | Focal subchondral marrow hyperintensity at the medial talar shoulder, with a smaller adjacent focus in the medial malleolus. These appear reactive/contusional or cystic. An associated small osteochondral lesion cannot be excluded, but no displaced fragment or definite cartilage defect is demonstrated. | **Medium** |\n| **Posterolateral tibial plafond** | Small area of apparent subchondral marrow hyperintensity, possibly additional reactive edema/contusion. This is difficult to separate completely from articular partial-volume signal on these images. | **Low** |\n| **Anterior-superior calcaneus, adjacent to the sinus tarsi** | Small focal area of increased marrow signal, with a somewhat cystic appearance, suggesting localized subcortical reactive/cystic change. | **Medium** |\n| **Anterior talofibular ligament region** | The ligament is poorly delineated and appears attenuated, with adjacent anterolateral joint fluid/soft-tissue signal. Suspicious for ligament injury; a complete tear cannot be established from these sampled images. | **Medium** |\n| **Deep deltoid ligament region** | Mildly increased signal near the medial talar attachment, potentially representing a low-grade sprain/reactive change. No definite full-thickness disruption. | **Low** |\n| **Medial plantar soft tissues/distal tarsal tunnel** | Prominent elongated, branching fluid-bright structures tracking along the plantar neurovascular course. Their appearance favors prominent/dilated venous channels rather than a discrete cyst or tendon-sheath collection. | **Medium** |\n| **Perimalleolar soft tissues** | Mild soft-tissue edema, most apparent laterally. No organized collection. | **Medium** |\n\n### Other assessed structures\n- **Bones:** No definite fracture line, displaced fracture, or malalignment.\n- **Cartilage:** No large full-thickness defect identified; assessment is limited.\n- **Tendons:** Achilles, peroneal, medial flexor, and anterior extensor tendons remain grossly continuous. No convincing tendon tear or substantial tenosynovitis.\n- **Other ligaments:** No obvious syndesmotic or posterior talofibular ligament disruption. The calcaneofibular ligament is insufficiently depicted for confident grading.\n- **Plantar fascia:** Visualized proximal portion is not appreciably thickened or disrupted."
}