Results 11 to 20 of about 33,884 (221)
Schwannoma Localized Retroperitoneally in a 14-Year-Old Boy
Case Reports in Pediatrics, 2016 Schwannomas usually occur in adults being between the second and fifth decades, and such neoplasms are extremely rare in a pediatric population. In addition, they are not normally found in the retroperitoneal region.
Hasan Cayirli +5 more
doaj +1 more source
Complete Resolution of Retroperitoneal Lymphangioma with a Single Trial of OK-432 in an Infant
Pediatrics and Neonatology, 2016 Retroperitoneal lymphangioma is extremely rare. Although these neoplasms are benign, they can grow progressively with subsequent compression and infiltration of the adjacent structures.
Claudio Olivieri +4 more
doaj +1 more source
BMC Cancer, 2018 Background Gastric gastrointestinal stromal tumor (GIST), intro-abdominal and retroperitoneal neoplasms are distinct tumors arising from different cell layers; therefore, coexistence of such tumors is relatively rare.
Yong Zhou +4 more
doaj +1 more source
RETROPERITONEAL SCHWANNOMA (CLINICAL CASE)
Клиническая практика, 2016 Schwannoma - a tumor growing from Schwann cells of the peripheral nerve sheath. Retroperitoneal schwannoma is a rare tumor accounting for approximately 1 to 5% of all retroperitoneal neoplasms. Retroperitoneal localization occurs for a total in 0.75-2.6%
Yu A Stepanova +4 more
doaj +1 more source
Giant fibroma of the retroperitoneal space, complicated by inferior vena cava compression syndromе
Український радіологічний та онкологічний журнал, 2020 Background. Inorganic retroperitoneal tumors (IRT) are neoplasms that have no organ affiliation and develop from soft tissues located in the retroperitoneal space (adipose, connective, vascular, nervous), as well as from embryonic elements.
О. М. Білий, І. В. Лепеха
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT A lethal round‐cell malignancy with an MN1::ZNF341 fusion has recently been reported in three infants. Here, we describe four further tumors, three in newborns (including monozygotic twins), and one in an adolescent. Detailed clinical, radiological, and histopathological data differentiate these tumors from their main mimics, neuroblastoma and
Thomas R. W. Oliver +25 more
wiley +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider +15 more
wiley +1 more source
Giant Retroperitoneal Liposarcoma: A Case Report
Case Reports in Oncological Medicine, 2012 Soft tissue sarcomas represent less than 1% of all human neoplasms. One-third of malignant tumors that arise in the retroperitoneum are sarcomas and liposarcoma is the most common retroperitoneal sarcoma.
Chavan Shahaji +3 more
doaj +1 more source
Fetus in fetu with skeletal dysplasia and hyperparathyroidism
Journal of Pediatric Surgery Case Reports, 2019 Fetus-in-fetu (FIF) is a rare condition in which malformed parasitic twin grows inside the body of its twin and usually presents as abdominal mass. We are reporting a case of neonate who presented with abdominal mass; FIF was suggestive after further ...
Saad H. Aldosari +4 more
doaj +1 more source
Primary retroperitoneal mucinous cystadenocarcinoma with transition from the mesothelium
IJU Case Reports, 2020 Introduction Mucinous cystic neoplasms are uncommon among the tumors that develop in the retroperitoneum. We report a case of primary retroperitoneal mucinous cystadenocarcinoma with pathological considerations.
Ikko Tomisaki +5 more
doaj +1 more source