Gastric inflammatory myofibroblastic tumor, a rare mesenchymal neoplasm: A case report.

BACKGROUND: The inflammatory myofibroblastic tumor (IMT) is a rare mesenquimal tumor of doubtful biological behaviour. It's characterised for affecting mainly children and young adults, although it can appear at any age, being the lungs the primary affected organ (in children it represents 20% of all primary pulmonary tumors). CASE SUMMARY: We present the case of a 45 year old woman, with a computed tomography (CT) finding of injury on the anterior surface of the fundus/gastric body and a solid perigastric injury of 12 mm in the ecoendoscopy. The case is presented in the tumor committee deciding to perform a laparoscopic wedge resection. The histological diagnosis was a IMT. The diagnosis is based on imaging tests like the abdominal CT, abdominal ecography and the ecoendoscopy but to confirm the diagnosis a pathological study is necessary. CONCLUSION: Due to the unpredictable nature of this tumor, surgical resection is the best therapeutic option.

An Enhanced Joint Hilbert Embedding-Based Metric to Support Mocap Data Classification with Preserved Interpretability.

Motion capture (Mocap) data are widely used as time series to study human movement. Indeed, animation movies, video games, and biomechanical systems for rehabilitation are significant applications related to Mocap data. However, classifying multi-channel time series from Mocap requires coding the intrinsic dependencies (even nonlinear relationships) between human body joints. Furthermore, the same human action may have variations because the individual alters their movement and therefore the inter/intraclass variability. Here, we introduce an enhanced Hilbert embedding-based approach from a cross-covariance operator, termed EHECCO, to map the input Mocap time series to a tensor space built from both 3D skeletal joints and a principal component analysis-based projection. Obtained results demonstrate how EHECCO represents and discriminates joint probability distributions as kernel-based evaluation of input time series within a tensor reproducing kernel Hilbert space (RKHS). Our approach achieves competitive classification results for style/subject and action recognition tasks on well-known publicly available databases. Moreover, EHECCO favors the interpretation of relevant anthropometric variables correlated with players' expertise and acted movement on a Tennis-Mocap database (also publicly available with this work). Thereby, our EHECCO-based framework provides a unified representation (through the tensor RKHS) of the Mocap time series to compute linear correlations between a coded metric from joint distributions and player properties, i.e., age, body measurements, and sport movement (action class).

Terapia endovascular en trauma vascular periférico: experiencia inicial / Endovascular therapy in peripheral vascular trauma: initial experience

Objetivos Mostrar nuestra experiencia inicial en el manejo endovascular de lesiones arteriales periféricas ocasionadas por trauma. Materiales y métodos Revisión retrospectiva de las fichas clínicas e imágenes diagnósticas y terapéuticas de 7 casos de trauma vascular: 2 seudoaneurismas de vasos tibiales, una fístula arteriovenosa (FAV) asociada a seudoaneurisma de vasos ilíacos, un seudoaneurisma gigante de arteria poplítea, una FAV de vasos poplíteos, una oclusión aguda de arteria poplítea en trauma contuso, y un caso de lesión iatrogénica de arteria subclavia con seudoaneurisma por catéter intraarterial central. En ambos casos de seudoaneurisma de arterias tibiales se efectuó embolización con coils. El caso de FAV asociada a seudoaneurisma ilíaco se manejó con una endoprótesis cubierta. Los casos de seudoaneurisma de arteria poplítea y la FAV de vasos poplíteos se repararon mediante stents cubiertos. La oclusión aguda de arteria poplítea se trató con un stent autoexpandible. En el caso del catéter intraarterial central, se selló el orificio con balón de angioplastia. Resultados Todos los pacientes fueron tratados de forma exitosa y evolucionaron sin complicaciones inmediatas; los seguimientos varían entre 3 meses y 3 años, sin evidencia de complicación. Discusión Si bien el tratamiento clásico del trauma vascular tiene plena vigencia en la actualidad, la terapia endovascular, con las herramientas disponibles, permite realizar el tratamiento definitivo o transitorio, a fin de mejorar las condiciones locales y poder efectuar una reparación abierta con menos complicaciones que la cirugía de urgencia.

Objectives To show our initial experience in endovascular management of peripheral artery trauma. Materials and methods We retrospectively collected the data of seven cases of vascular trauma: two tibial artery pseudoaneurysms, one case of arteriovenous fistula (AVF) associated to iliac vessel pseudoaneurysm, one giant pseudoaneurysm of the popliteal artery, a popliteal vessel AVF, an acute occlusion of the popliteal artery due to blunt trauma and a case of iatrogenic lesion of the subclavian artery with pseudoaneurysm resulting from a central intra-arterial catheter. Coil embolization was performed in both cases of tibial artery pseudoaneurysms. The case of iliac vessel pseudoaneurysm and AVF was treated with a stent graft. A covered stent was used to exclude both the popliteal pseudoaneurysm and popliteal vessel AVF. A bare stent was used in the case of acute popliteal occlusion. The intra-arterial central catheter in the subclavian artery was managed by means of compression with an angioplasty balloon. Results All patients were successfully treated with no immediate complications. Follow up ranges from 3 months to 3 years with no evidence of complication up to this point. Discussion Although the classic approach to vascular trauma treatment is still very much an alternative, endovascular therapy, through all of its tools, allows either definitive treatment or transient management, improving local conditions and thus to proceed at a later date with an elective open vascular repair with fewer difficulties and complications.

Endovascular repair of traumatic external iliac vessel pseudoaneurysm and arteriovenous fistulae / Tratamento endovascular de pseudoaneurisma traumatico e fistulas arteriovenosas em vasos iliacos externos

A 17-year-old male patient presenting with an abdominal gunshot wound and severe hypovolemic shock was initially operated and presented several injuries to the small bowel and cecum associated with severe hemorrhage. The patient had to be operated twice due to hypothermia, acidosis, and coagulopathy. In the late postoperative period, murmur and fremitus were observed. Angiography revealed a pseudoaneurysm associated with arteriovenous fistulae at the left external iliac vessels. Lesions were repaired with a stent graft placed in the external iliac artery, with a satisfactory outcome. Control computed tomography performed 6 months later evidenced artery integrity with closure of the fistulae. Endovascular therapy should be the preferred method in this type of vascular trauma complications.

Um paciente do sexo masculino com 17 anos de idade apresentando-se com ferimento abdominal por arma de fogo e choque hipovolêmico grave foi inicialmente operado e apresentava várias lesões no intestino delgado e ceco associadas a hemorragia grave. O paciente teve que ser operado duas vezes devido a hipotermia, acidose e coagulopatia. No período pós-operatório tardio, foram observados sopro e frêmito. Angiografia revelou um pseudoaneurisma associado a fístulas arteriovenosas nos vasos ilíacos externos ao lado esquerdo. As lesões foram tratadas mediante a colocação de stent na artéria ilíaca externa, com desfecho satisfatório. Tomografia computadorizada de controle realizada após 6 meses evidenciou integridade da artéria, com o fechamento das fístulas. O tratamento endovascular deve ser o método de escolha nesse tipo de complicação vascular traumática.