RESUMO
OBJECTIVE: Lung tumors can exhibit a high degree of mobility during insertion of radiofrequency applicators owing to both respiratory motion and the inherent characteristics of pulmonary parenchyma. The purpose of this report is to describe a technique used to secure lung tumors during insertion of a radiofrequency applicator. CONCLUSION: As experience with percutaneous imaging-guided radiofrequency ablation increases, technical challenges become increasingly apparent. A technique whereby a mobile pulmonary tumor is anchored prior to placement of the ablation electrode is one method of overcoming such a challenge.
Assuntos
Carcinoma de Células Escamosas/cirurgia , Ablação por Cateter/métodos , Neoplasias Pulmonares/cirurgia , Sarcoma/secundário , Sarcoma/cirurgia , Idoso , Carcinoma de Células Escamosas/diagnóstico por imagem , Carcinoma de Células Escamosas/secundário , Humanos , Neoplasias Pulmonares/diagnóstico por imagem , Neoplasias Pulmonares/secundário , Masculino , Pessoa de Meia-Idade , Tomografia por Emissão de Pósitrons , Radiografia Intervencionista , Sarcoma/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Neoplasias Tonsilares/patologiaRESUMO
Uncontrolled acute menorrhagia resulting in hemodynamic instability in the adolescent is uncommon. We report a case of life-threatening menorrhagia upon first menses in a 12-year-old girl who was successfully treated with uterine artery embolization after failure of standard gynecologic and medical measures. Testing eventually revealed a coagulopathy that resulted from decreased plasminogen activator inhibitor-1 activity in combination with an immature hypothalamic-pituitary-ovarian axis. Coagulation disorders are more common in patients presenting with severe menorrhagia upon menarche. Interventional radiologists should be aware of such coagulation abnormalities and the differences between adults and adolescents when contemplating uterine artery embolization for adolescent patients.
