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Persistent sciatic artery aneurysm: a rare embryological vascular variant
  1. K T Sajeer,
  2. D Vinayakumar,
  3. Babu Kanjirakadavath,
  4. M N Krishnan
  1. Department of Cardiology, Government Medical College, Kozhikode, Kerala, India
  1. Correspondence to Dr Sajeer K T, Department of Cardiology, Government Medical College, Kozhikode, Kerala 673008 India; drsajeerkt{at}

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A 64-year-old woman presented with dry gangrene of the right big toe. Right femoral, popliteal and dorsalis arterial pulses were weak. The rest of the physical examination was normal. Peripheral reconstruction using 64-slice multi-detector computerised tomography and peripheral angiogram through a catheter via right femoral artery showed that the right internal iliac artery continued as persistent sciatic artery (PSA) and then distally as the popliteal and tibial arteries. The PSA was totally occluded from upper thigh level with fusiform aneurysm with thrombus. Right external …

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