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http://dx.doi.org/10.7863/jum.2011.30.11.1604 | DOI Listing |
Case Rep Surg
December 2024
Institute of Surgical Gastroenterology, GI and HPB Oncosurgery and Liver Transplant, Sir Ganga Ram Hospital, New Delhi, India.
Primary retroperitoneal seminoma is an exceedingly rare type of germ cell tumor, accounting for less than 5% of all such tumors. These tumors are typically large at presentation due to their slow growth and the nonspecific nature of symptoms, which often leads to delayed diagnosis. A 40-year-old male presented with intermittent abdominal pain and a palpable lump in the right paraumbilical region.
View Article and Find Full Text PDFCureus
November 2024
Oncology, University Hospital Waterford, Waterford, IRL.
Non-gestational choriocarcinoma is an extremely rare and highly aggressive malignant tumor that arises independent of gestational events, making less than 0.6% of all ovarian germ cell tumors. Unlike the more common gestational choriocarcinoma, which is associated with pregnancy, non-gestational choriocarcinoma originates from germ cells within the ovary.
View Article and Find Full Text PDFDiscov Oncol
December 2024
Department of Radiology, Addis Ababa University, Addis Ababa, Ethiopia.
Primary intracranial yolk sac tumor (YST) with orbital involvement is an exceedingly rare extragonadal germ cell tumor, with only a limited number of cases reported in the literature. Clinically, primary intracranial yolk sac tumor with orbital involvement may present with symptoms that mimic more common benign or malignant orbital disorders in children, potentially leading to diagnostic delays that can adversely impact survival. Diagnostic imaging modalities, including computed tomography (CT) and magnetic resonance imaging (MRI), are instrumental for assessing the tumor's size, precise localization, and extent.
View Article and Find Full Text PDFRadiol Case Rep
February 2025
Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Seminoma is a malignant germ cell tumor that primarily develops in the testis but can occur in other extragonadal areas, most commonly the mediastinum and retroperitoneum. While generally offering a favorable prognosis, seminomas can sometimes clinically present with misleading characteristics resulting in delayed diagnosis. In this article, we report the case of a 31-year-old male diagnosed with grade IIIC intermediate risk testicular seminoma cTxN3M1bSx, who presented initially with a palpable cervical mass.
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.
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