A case of pseudoaneurysm of the external iliac artery after a total hip arthroplasty is reported. A 48-year-old man had undergone a total left hip arthroplasty 5 years previously. Acute arterial occlusion (AAO) of the left lower extremity occurred 3 times. AAO was due to pseudoaneurysm of the external iliac artery, which was detected by rotating digital subtraction angiography (DAS). Aneurysmectomy and reconstruction were carried out. Rotating DSA was useful for the diagnosis of this unusual case of pseudoaneurysm of the external iliac artery after a total hip arthroplasty is unusual.

We report the case of a 3-year-old boy with a history of repeated neutropenia and infection along with a significant family medical history. The diagnosis was cyclic neutropenia based on genetic testing. He had experienced frequent repeated episodes of fever since age 8 months, and he was found to have neutropenia when hospitalized due to acute otitis media at age 13 months. We obtained serial data of complete blood cell counts for 6 weeks when he was 3 years and 4 months old, which confirmed a cyclic increase and decrease in the number of neutrophils. ELANE gene testing was performed after obtaining written informed consent from the parents. A missense mutation was identified. At the parents’ request, we ran further testing and identified the same mutation in the father and paternal grandmother. Thus, 3 generations of kindred had the ELANE gene mutation. Because of repeated infections, prophylactic sulfamethoxazole trimethoprim was started from age 3 years and 10 months, resulting in a considerable decrease in the frequency of infections. Since age 4 years and 11 months, cyclic neutrophil over about 3 weeks has persisted, but there have been no serious infections requiring hospitalization.