Teratomas are germ cell tumors arising from the embryonic germ layers. Since they originate from the germ cells, they can be found in the gonadal, sacrococcygeal, mediastinal, intracranial, retroperitoneal, and cervical regions. In this case report, a 4-year boy, brought to the hospital due to abdominal pain and fever, was diagnosed as a large and infected peritoneal teratoma by contrast-enhanced abdominal computed tomography (CT) along with abdominal CT and operative findings.
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http://dx.doi.org/10.29271/jcpsp.2019.08.778 | DOI Listing |
Cureus
November 2024
Pathology, All India Institute of Medical Sciences, Rishikesh, Rishikesh, IND.
Germ cell tumors, the most common of the testicular neoplasms, originate from primordial germ cells. These tumors are known for their totipotent nature, capable of differentiating into various cell types. This case report presents a rare occurrence of mucinous cystadenoma in a patient who received chemotherapy for metastatic left non-seminomatous germ cell tumor (NSGCT) of the testis.
View Article and Find Full Text PDFFront Pediatr
November 2024
Department of Pediatric Surgery, Al-Makassed Islamic Charitable Hospital, Jerusalem, Palestine.
Teratomas are germ cell tumors that arise from the derivatives of the three germ cell layers. They are categorized into subtypes by the extent of maturation, with mature teratomas being the most common subtype. While they can arise in various extragonadal regions, including the retroperitoneum, their occurrence in the retroperitoneal space is extremely rare.
View Article and Find Full Text PDFCell Rep Med
December 2024
State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China; Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China. Electronic address:
Predicting the histopathology of residual retroperitoneal masses (RMMs) before post-chemotherapy retroperitoneal lymph node dissection in metastatic nonseminomatous germ cell tumors (NSGCTs) can guide individualized treatment and minimize complications. Previous single approach-based models perform poorly in validation. Herein, we introduce a machine learning model that evolves from a single-dimensional tumor diameter to incorporate high-dimensional radiomic features, with its effectiveness assessed using the macro-average area under the receiver operating characteristic curves (AUCs).
View Article and Find Full Text PDFBJU Int
December 2024
Department of Urology, Luzerner Kantonsspital, University of Lucerne, Lucerne, Switzerland.
Objectives: To reassess the role of primary retroperitoneal lymph node dissection (RPLND) in patients with marker-negative non-seminomatous germ cell tumour (NSGCT) clinical stage (CS) 2a, to explore results in patients with CS 2b and to evaluate surgical methods, recurrence, and adjuvant chemotherapy indications.
Materials And Methods: Data from 17 institutions were collected, comprising 305 men who underwent primary RPLND for CS 2 NSGCT. Regression analyses were conducted to predict histology in the RPLND specimen and disease-free survival (DFS).
Asian J Endosc Surg
November 2024
Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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