PMID- 37499055 OWN - NLM STAT- MEDLINE DCOM- 20231204 LR - 20231216 IS - 1943-7722 (Electronic) IS - 0002-9173 (Linking) VI - 160 IP - 6 DP - 2023 Dec 1 TI - Lessons from 801 clinical TFE3/TFEB fluorescence in situ hybridization assays performed on renal cell carcinoma suspicious for MiTF family aberrations. PG - 549-554 LID - 10.1093/ajcp/aqad089 [doi] AB - OBJECTIVES: Fluorescence in situ hybridization (FISH) assays for the detection of chromosomal rearrangements involving TFE3 and TFEB are considered the gold standard for the diagnosis of MiTF family altered renal cell carcinoma (MiTF-RCC). We reviewed 801 clinical TFE3/TFEB FISH assays performed at our tertiary-level institution between 2014 and 2023 on kidney tumors suspicious at the morphologic or biomarker level for MiTF aberrations. METHODS: We summarized and analyzed clinical information, TFE3/TFEB FISH results, and available biomarker staining results in a cohort of 453 consecutive kidney tumor cases suspicious for MiTF-RCC. RESULTS: In total, 61 of 434 (14%) kidney tumors were confirmed for TFE3 translocation; 10 of 367 cases (2.7%) were confirmed for TFEB translocation. Since TFEB amplification interpretation was implemented in our service line, 20 of 306 cases (6.5%) were diagnosed with TFEB amplification. Importantly, TFE3 and TFEB rearrangements were never co-detected within the same kidney tumor. Patients with TFEB amplification were significantly older (P < .001) than patients with TFE3 or TFEB translocation. Kidney tumors with TFEB amplification were seen to be at least 3 times as common as those with TFEB translocation. CONCLUSIONS: Clinical TFE3/TFEB FISH assays successfully identified and confirmed rare MiTF-RCC with TFE3 and TFEB rearrangements. Although morphologic and biomarker features associated with a kidney tumor may be suggestive of MiTF-RCC, clinical TFE3/TFEB FISH assays are crucial for a confirmation and definitive subclassification of patients with MiTF-RCC. CI - (c) The Author(s) 2023. Published by Oxford University Press on behalf of American Society for Clinical Pathology. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. FAU - Wang, Xiao-Ming AU - Wang XM AD - Department of Pathology, Ann Arbor, MI, US. AD - Michigan Center for Translational Pathology, Ann Arbor, MI, US. FAU - Shao, Lina AU - Shao L AD - Department of Pathology, Ann Arbor, MI, US. FAU - Xiao, Hong AU - Xiao H AD - Department of Pathology, Ann Arbor, MI, US. FAU - Myers, Jeffrey L AU - Myers JL AD - Department of Pathology, Ann Arbor, MI, US. FAU - Pantanowitz, Liron AU - Pantanowitz L AD - Department of Pathology, Ann Arbor, MI, US. AD - Department of Pathology, University of Pittsburgh, Pittsburgh, PA, US. FAU - Skala, Stephanie L AU - Skala SL AD - Department of Pathology, Ann Arbor, MI, US. AD - Rogel Cancer Center, Michigan Medicine, Ann Arbor, MI, US. FAU - Udager, Aaron M AU - Udager AM AUID- ORCID: 0000-0002-8254-5404 AD - Department of Pathology, Ann Arbor, MI, US. FAU - Vaishampayan, Ulka AU - Vaishampayan U AD - Rogel Cancer Center, Michigan Medicine, Ann Arbor, MI, US. AD - Internal Medicine, Ann Arbor, MI, US. FAU - Mannan, Rahul AU - Mannan R AD - Department of Pathology, Ann Arbor, MI, US. AD - Michigan Center for Translational Pathology, Ann Arbor, MI, US. FAU - Dhanasekaran, Saravana M AU - Dhanasekaran SM AD - Department of Pathology, Ann Arbor, MI, US. AD - Michigan Center for Translational Pathology, Ann Arbor, MI, US. FAU - Chinnaiyan, Arul M AU - Chinnaiyan AM AD - Department of Pathology, Ann Arbor, MI, US. AD - Michigan Center for Translational Pathology, Ann Arbor, MI, US. AD - Rogel Cancer Center, Michigan Medicine, Ann Arbor, MI, US. AD - Urology, University of Michigan Medical School, Ann Arbor, MI, US. AD - Howard Hughes Medical Institute, Ann Arbor, MI, US. FAU - Betz, Bryan L AU - Betz BL AD - Department of Pathology, Ann Arbor, MI, US. FAU - Brown, Noah AU - Brown N AD - Department of Pathology, Ann Arbor, MI, US. FAU - Mehra, Rohit AU - Mehra R AD - Department of Pathology, Ann Arbor, MI, US. AD - Michigan Center for Translational Pathology, Ann Arbor, MI, US. AD - Rogel Cancer Center, Michigan Medicine, Ann Arbor, MI, US. LA - eng PT - Journal Article PT - Review PL - England TA - Am J Clin Pathol JT - American journal of clinical pathology JID - 0370470 RN - 0 (Basic Helix-Loop-Helix Leucine Zipper Transcription Factors) RN - 0 (Biomarkers, Tumor) RN - 0 (TFE3 protein, human) RN - 0 (TFEB protein, human) SB - IM MH - Humans MH - *Carcinoma, Renal Cell/diagnosis/genetics/metabolism MH - In Situ Hybridization, Fluorescence/methods MH - Basic Helix-Loop-Helix Leucine Zipper Transcription Factors/genetics MH - Translocation, Genetic MH - *Kidney Neoplasms/diagnosis/genetics/metabolism MH - Biomarkers, Tumor/genetics OTO - NOTNLM OT - MiTF OT - TFE3 OT - TFEB OT - TRIM63 OT - FISH OT - RNA in situ hybridization OT - amplification OT - fluorescent in situ hybridization OT - next-generation sequencing OT - renal cell carcinoma OT - translocation EDAT- 2023/07/27 19:10 MHDA- 2023/12/04 12:42 CRDT- 2023/07/27 14:13 PHST- 2023/04/06 00:00 [received] PHST- 2023/06/29 00:00 [accepted] PHST- 2023/12/04 12:42 [medline] PHST- 2023/07/27 19:10 [pubmed] PHST- 2023/07/27 14:13 [entrez] AID - 7232443 [pii] AID - 10.1093/ajcp/aqad089 [doi] PST - ppublish SO - Am J Clin Pathol. 2023 Dec 1;160(6):549-554. doi: 10.1093/ajcp/aqad089.