RESUMEN
A 20-year-old man underwent a Tc-99m HMPAO labeled leukocyte scan for the evaluation of an infection at the stump of an AK amputation, which was conducted due to an open communicated fracture of the left lower leg. Blood-flow and blood-pool images demonstrated a pseudoaneurysm with a focus of intense activity medial to the stump, and centered within a large photopenic defect by surrounding hematoma. Delayed image obtained at 3 hours post-injection showed persistent intense and slight increased activity. Contrast angiography confirmed the presence of a pseudoaneurysm arising from a branch of the left superficial femoral artery.
Asunto(s)
Humanos , Adulto Joven , Muñones de Amputación , Amputación Quirúrgica , Aneurisma Falso , Angiografía , Arteria Femoral , Hematoma , Pierna , Leucocitos , Angiografía por Radionúclidos , Exametazima de Tecnecio Tc 99mRESUMEN
Reflex sympathetic dystrophy syndrome is characterized by variable complex of the following symptoms, such as pain, tenderness, vasomotor instability, and trophic changes in distal extremities resulting from injury to either central or peripheral nervous tissue. We measured blood flow using radioisotope angiography with agent containing technecium-99m in one patient with reflex sympathetic dystrophy syndrome. Blood flow were significantly lower in affected side than normal side. After epidural block with 0.5% lidocaine and left lumbar sympathetic block with 100% alcohol, burning pain was disappeared and blood flow was increased to near or above in relation to the normal side. Radioisotope angiography is a noninvasive study and not so expensive. And we thought that radioisotope angiography may be a useful aid not only for diagnosis, but also for evaluating therapeu-tic response.