Mar Tapia Viñé

Hospital Universitario La Paz · Hospital General

Periosteal Ewing sarcoma (ES) is an exceedingly rare topographic subtype of the ES. To our knowledge, only 60 patients have been reported in the medical English language literature. It predominantly affects men in the second decade of life and arises in the long tubular bone diaphysis. PES rarely develops distant metastases. We report two patients...

Papillary intralymphatic angioendothelioma (PILA) is an exceptionally rare metastasizing soft tissue tumor. It tends to arise in the subcutaneous tissues of distal extremities in children. Only four intraosseous PILA cases have been reported until now in English language literature. We present a case of PILA arising in the distal femoral epiphysis...

Background Glomus tumors are benign mesenchymal tumors of the neuromyoarterial glomus bodies. They are generally localized at the subungual area of the fingers. Extradigital or non-subungual glomus tumors are less common. Their diagnosis can be challenging because of their lower incidence, nonspecific symptoms, and the fact that they can be missed...

Cutaneous fibrous histiocytoma (FH) is considered a benign dermal tumor. The cellular variant is rare and poorly documented. Besides presenting a high risk of local recurrence, it has a low but serious metastatic potential. We present a case of metastatic cellular FH and also review the literature on this tumor, given its unusual metastatic develop...

Chronic expansive hematoma (CEH) is a rare lesion, characterized by the persistence and increase in size of an hematoma for a period greater than one month since the initial hemorrhage. The clinical importance of this pathology is due to the fact that it can simulate malignant soft tissue neoplasms, both clinically as a result of its progressive gr...

BACKGROUND: Angiosarcomas are a type of malignant tumor of vascular origin. They represent less than 1% of all primary bone tumors. The multicentric or metastatic does not differ in its high aggressiveness and poor prognosis. CASE PRESENTATION: We describe a case of an elderly male with bone angiosarcoma initially located in proximal femur. After b...

Aneurysmal bone cyst (ABC) is a relatively rare, benign bone tumor that occurs exceptionally in the hands and feet. The objective of this article is to present clinical, radiological, histopathological features and management of a series of 14 primary ABC cases in these unusual locations. Eight cases occurred in hands and six in feet. We present th...

Background Magnetic resonance imaging (MRI) is frequently used in patients with chronic back pain (CBP) to diagnose mechanical and inflammatory diseases, including axial spondyloarthritis (axSpA). Recent data suggest sacroiliac joints (SIJ) MRI findings in axSpA may differ according to sex[1]. Whether this holds true for spinal MRI and other causes...

Background Chronic back pain (CBP) is one of the major causes for medical consultation among young people. Given the limited sources, it is relevant knowing the characteristics associated with a higher burden in order to prioritize the performance of imaging exams. Objectives To identify factors associated with sick leave in a cohort of young pati...

Background Inflammatory back pain (IBP) is the core symptom in patients with axial spondyloarthritis (axSpA). For its assessment, experts recommend using the Assessment of SpondyloArthritis International Society (ASAS) criteria. Advances in telemedicine and online screening strategies require to evaluate whether self-reported perform equally to phy...

Introduction: Intranodal palisaded myofibroblastoma (IPM) is an exceedingly rare benign mesenchymal tumor of the lymph nodes. Magnetic resonance imaging (MRI) findings are unspecific, which may present diagnostic challenges to fine-needle aspiration cytology (FNAC). The histological and immunohistochemical features of IPM are unique. Case report:...

Introduction: Glomus tumors (GT) are rare and benign tumors that arise from glomus bodies and usually develop in digital areas. Extradigital GT are exceptional and thigh location is infrequent. Case report: We report a case of a GT of the thigh in a 79-year-old male patient that measured 9,5 cm in maximum size. GT was above the muscular fascia w...

Fibrous hamartoma of infancy (FHI) is a very rare benign soft tissue lesion that principally affects the axilla, trunk, and upper extremities of children younger than 2 years. It is usually cured by local excision. Histologically, these lesions have a triphasic morphology in an organoid pattern: mature adipose tissue, fibroblastic/myofibroblastic t...

Alveolar soft part sarcoma (ASPS) accounts for less than 1 % of all soft tissue sarcomas. ASPS presents a poor prognosis and develops frequent metastases, especially in the lungs, brain and bones. Current therapies, such as surgery, radiotherapy and chemotherapy, are not fully effective and other alternative treatments are currently being studied....

Calcifying aponeurotic fibroma (CAF) is a very rare benign entity that principally affects the volar fascia, tendons, and aponeuroses of the hands and feet with a peak incidence of between 5 and 15 years, although there have been cases found for a wide age range and at various anatomical sites. We present ten CAF cases; consisting of eight children...

Resumen Blackground: La pandemia COVID-19 ha puesto en una situación de sobrecarga al sistema sanitario español, y, como consecuencia, la atención al paciente oncológico se ha visto afectada. El objetivo de este estudio es realizar un análisis descriptivo de la atención al paciente oncológico y del funcionamiento de los Comités de Tumores en el Hos...

Resumen Objetivo Analizar la incidencia, factores pronósticos, indicación de tratamiento quirúrgico y supervivencia de los pacientes con criterios de oligometástasis óseas con los criterios de solitaria y normal ósea tratados en centros expertos en la resección tumoral de lesiones óseas. Material y método Análisis retrospectivo de 414 pacientes a...

Benign notochordal cell tumors (TBCN) are lesions with notochordal differentiation which affect the axial skeleton. They are characterized by asymptomatic or non-specific symptomatology and are radiologically unnoticed because of their small size, or because they are mistaken with other benign bone lesions, such as vertebral hemangiomas. When they...

PURPOSE/AIM To describe and illustrate the imaging findings of the musculoskeletal infections in the Emergency Department (ED) CONTENT ORGANIZATION Each year an important number of musculoskeletal infections(MI) are diagnosed in the ED and general radiologist must be familiarized with them The contents of this exhibit will be organized -Pathophysi...