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Total 5323794 results found since Jan 2013.

Fetal sex prediction measuring yolk sac size and yolk sac –fetal pole distance in the first trimester via ultrasound screening
ConclusionYolk sac –fetal pole distance may have the potential to predict gender in the first trimester of pregnancy.
Source: Journal of Ultrasound - November 7, 2021 Category: Radiology Source Type: research

Pineal Yolk Sac Tumor Producing α-Fetoprotein Detected by 68Ga-FAPI PET/MRI
This study reported a case of pineal YST with α-fetoprotein production revealed by 18F-FDG and 68Ga-FAPI PET/MRI. In the PET images, 68Ga-FAPI showed a far better tumor-to-background ratio than 18F-FDG in the pineal YST because there is little 68Ga-FAPI uptake in the brain. This case indicates that 68Ga-FAPI PET/MRI may be a useful tool for evaluating intracranial YST and other types of tumors in central nervous system.
Source: Clinical Nuclear Medicine - December 16, 2021 Category: Nuclear Medicine Tags: Interesting Images Source Type: research

Yolk Sac Tumor Arising in Uterine Carcinosarcoma With Endometrioid and Serous Components: A Case Report With Immunohistochemical Analysis
Yolk sac tumor of the endometrium is an uncommon neoplasm. Here we report a case of yolk sac tumor arising in a uterine carcinosarcoma, with the carcinomatous component showing both endometrioid and serous components, and the sarcomatous component showing homologous (spindled) differentiation. The yolk sac tumor showed predominant glandular configuration and was present admixed with the epithelial components. Extensive immunostaining was performed to narrow the differential diagnosis, including potentially therapeutic testing for HER-2. To our knowledge, this is the first case of carcinosarcoma with this mix of epithelial ...
Source: International Journal of Gynecological Pathology - December 17, 2021 Category: Pathology Tags: Pathology of the Corpus: Case Reports Source Type: research

Urachal yolk sac tumor penetrating the bladder as a diagnostic challenge: a case report and review of the literature
Yolk sac tumor (YST) is a germ cell tumor. It is primarily located in the gonads but can also occur extragonadally (extragonadal yolk sac tumor - EGYST), most commonly in the pelvis, retroperitoneum or mediast...
Source: Diagnostic Pathology - January 14, 2022 Category: Pathology Authors: Vladim ír Šámal, Tomáš Jirásek, Vít Paldus, Igor Richter and Ondřej Hes Tags: Case Report Source Type: research

Primary orbital yolk sac tumor presenting as fungating mass
We report a case of primary orbital yolk sac tumor with an aggressive presentation that responded well to systemic chemotherapy.PMID:35258404 | DOI:10.1080/01676830.2022.2037142
Source: Orbit - March 8, 2022 Category: Opthalmology Authors: Namita Kumari Sima Das Arpan Gandhi Amita Mahajan Source Type: research

Sarcomatoid Yolk Sac Tumor Harbors Somatic Mutations That Are Otherwise Rare in Testicular Germ Cell Tumors
In conclusion, this study demonstrated that 60% of SYSTs harbor somatic oncogenic mutations that are otherwise rare in TGCTs, and the presence of these mutations is associated with an aggressive clinical course. In addition, the results presented herein suggest that grading SYSTs may be clinically relevant.
Source: The American Journal of Surgical Pathology - April 23, 2022 Category: Pathology Tags: Original Articles Source Type: research

Clinicopathological features, prognosis, and fertility outcomes in Chinese Han women treated for ovarian yolk sac tumor: A retrospective case series study from two tertiary-care academic medical centers
Conclusions: The diagnosis of YST of childbearing age is very rare. Because the failure of primary treatment is related to the residual disease after salvage surgery, the fertility and survival results of patients undergoing fertility-preserving surgery are promising.
Source: Medicine - July 22, 2022 Category: Internal Medicine Tags: Research Article: Observational Study Source Type: research

Relapsed and refractory yolk sac tumor of the peritoneum (mesentery): A case report and literature review
ConclusionPostoperative histopathology and immunohistochemistry are gold standards for the diagnosis of peritoneal YST. The standard first-line treatment is surgery plus BEP chemotherapy. Second-line therapy regimens and above, including VIP and TIP, improve the prognosis of recurrent germ cell tumors. This relapsed and refractory patient with peritoneal YST benefits from the secondary BEP´ chemotherapy.
Source: Frontiers in Oncology - August 9, 2022 Category: Cancer & Oncology Source Type: research