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Inflammatory and Nested Testicular Sex Cord Tumor

Overview of attention for article published in The American Journal of Surgical Pathology, February 2023
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  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (90th percentile)
  • High Attention Score compared to outputs of the same age and source (88th percentile)

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Title
Inflammatory and Nested Testicular Sex Cord Tumor
Published in
The American Journal of Surgical Pathology, February 2023
DOI 10.1097/pas.0000000000002022
Pubmed ID
Authors

Andres M. Acosta, Julia A. Bridge, Paola S. Dal Cin, Lynette M. Sholl, Kristine M. Cornejo, Christopher D.M. Fletcher, Thomas M. Ulbright

Abstract

A subset of malignant testicular sex cord tumors (TSCTs), heretofore interpreted as Sertoli cell tumors, not otherwise specified, exhibits distinctive morphologic features that partially overlap with those of seminoma. In this study, we evaluated the clinicopathologic and molecular characteristics of 13 such tumors. The patients were 20 to 73 years old (median, 36 y), and all with available data presented with testicular masses (median size, 3 cm), with 2 having synchronous retroperitoneal metastases. All 11 patients with available follow-up developed metastases to retroperitoneal lymph nodes, nonretroperitoneal lymph nodes, bone, contralateral testis, and/or lung. Microscopically, the tumors showed solid nests and sheets of epithelioid cells with granular, eosinophilic to clear/vacuolated cytoplasm, admixed in most (12/13) cases with variable proportions of lymphocytes, plasma cells, eosinophils, and neutrophils. Additional features included intracytoplasmic hyaline inclusions and a prominent collagenous, sometimes hyalinized stroma. Mitotic activity was relatively low (median, 1 mitosis/10 HPF), but tumor necrosis was frequent (11/13). Local invasion of adjacent structures and lymphovascular invasion were noted in some tumors (4/9 cases with available data for each feature). All were α-inhibin-positive and lacked nuclear reactivity for β-catenin. In addition, all tested cases were positive for epithelial membrane antigen (9/9) and steroidogenic factor-1 (8/8), and 8/10 expressed CD30. Two "index" cases were initially analyzed using a DNA sequencing panel, which identified EWSR1::ATF1 fusions in both. Subsequently, EWSR1::ATF1 fusions were demonstrated in 8 of the remaining 11 cases using fluorescence in situ hybridization or DNA sequencing. One of the 3 cases that were negative for EWSR1::ATF1 harbored ATF1 amplification. This study, therefore, shows that a group of malignant TSCTs resembling seminoma is characterized by α-inhibin and steroidogenic factor-1 positivity, no expression of nuclear β-catenin, frequent CD30 positivity and recurrent EWSR1::ATF1 fusions. We have descriptively termed these neoplasms "inflammatory and nested TSCT." Importantly, inflammatory and nested TSCTs show significant differences in morphology, immunoprofile, molecular biology, and, likely, clinical behavior from Sertoli cell tumors, not otherwise specified and should be classified separately.

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X Demographics

The data shown below were collected from the profiles of 28 X users who shared this research output. Click here to find out more about how the information was compiled.
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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 4 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 4 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 1 25%
Unknown 3 75%
Readers by discipline Count As %
Nursing and Health Professions 1 25%
Unknown 3 75%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 18. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 03 August 2023.
All research outputs
#2,076,794
of 25,905,864 outputs
Outputs from The American Journal of Surgical Pathology
#254
of 3,545 outputs
Outputs of similar age
#45,874
of 506,487 outputs
Outputs of similar age from The American Journal of Surgical Pathology
#1
of 9 outputs
Altmetric has tracked 25,905,864 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 91st percentile: it's in the top 10% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 3,545 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.3. This one has done particularly well, scoring higher than 92% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 506,487 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 90% of its contemporaries.
We're also able to compare this research output to 9 others from the same source and published within six weeks on either side of this one. This one has scored higher than all of them