Malignant STK11 adnexal tumor harboring a somatic mutation in a woman previously diagnosed with mesothelioma, a case report

STK11 germline pathogenic variants are typically associated with Peutz-Jeghers syndrome, an autosomal dominant disease characterized by hamartomatous polyps in the gastrointestinal tract, hyperpigmented patches, and increased risk of stomach, colorectal, small bowel, and breast cancers (Beggs et al....

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Main Authors: Christina R. Rutherford, Taylor A. Rives, Dava W. Piecoro, Charles S. Dietrich
Format: Article
Language:English
Published: Elsevier 2024-12-01
Series:Gynecologic Oncology Reports
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Online Access:http://www.sciencedirect.com/science/article/pii/S2352578924002005
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author Christina R. Rutherford
Taylor A. Rives
Dava W. Piecoro
Charles S. Dietrich
author_facet Christina R. Rutherford
Taylor A. Rives
Dava W. Piecoro
Charles S. Dietrich
author_sort Christina R. Rutherford
collection DOAJ
description STK11 germline pathogenic variants are typically associated with Peutz-Jeghers syndrome, an autosomal dominant disease characterized by hamartomatous polyps in the gastrointestinal tract, hyperpigmented patches, and increased risk of stomach, colorectal, small bowel, and breast cancers (Beggs et al., 2010). Mutations in this gene have also been identified in skin, pancreatic, testicular, and stromal ovarian cancer (Fagerberg et al., 2014). To date, there have been less than 30 cases of ovarian cancer reported associated with mutated STK11 (Bennett et al., 2021). In this report, we discuss a rare case of a STK11 adnexal tumor in a 39-year-old woman previously diagnosed with malignant mesothelioma. After 33 months with no evidence of disease following cytoreductive surgery with HIPEC and adjuvant chemotherapy, a new retroperitoneal lesion was noted on imaging. After resection, molecular testing indicated an STK11 mutation, and histology was consistent with an STK11 adnexal tumor. A high index of suspicion is required to make the diagnosis of STK11 adnexal tumor due to its non-distinct pathology and IHC staining. Due to the rarity of this neoplasm, analysis of current and future cases of the STK11 adnexal tumor is necessary to understand its pathogenesis, genetic mutational analysis, clinical course, and best treatment options.
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spelling doaj-art-7c9ad546757b4f3caeb0b60173569f692025-08-20T01:55:42ZengElsevierGynecologic Oncology Reports2352-57892024-12-015610152110.1016/j.gore.2024.101521Malignant STK11 adnexal tumor harboring a somatic mutation in a woman previously diagnosed with mesothelioma, a case reportChristina R. Rutherford0Taylor A. Rives1Dava W. Piecoro2Charles S. Dietrich3University of Kentucky College of Medicine, University of Kentucky, Lexington, KY 40536, USADivision of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Kentucky, Lexington, KY 40536, USA; Corresponding author at: 800 Rose Street, Lexington, KY, USA.Department of Pathology, University of Kentucky, Lexington, KY 40536, USADivision of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Kentucky, Lexington, KY 40536, USA; Markey Comprehensive Cancer Center, University of Kentucky, Lexington, KY 40536, USASTK11 germline pathogenic variants are typically associated with Peutz-Jeghers syndrome, an autosomal dominant disease characterized by hamartomatous polyps in the gastrointestinal tract, hyperpigmented patches, and increased risk of stomach, colorectal, small bowel, and breast cancers (Beggs et al., 2010). Mutations in this gene have also been identified in skin, pancreatic, testicular, and stromal ovarian cancer (Fagerberg et al., 2014). To date, there have been less than 30 cases of ovarian cancer reported associated with mutated STK11 (Bennett et al., 2021). In this report, we discuss a rare case of a STK11 adnexal tumor in a 39-year-old woman previously diagnosed with malignant mesothelioma. After 33 months with no evidence of disease following cytoreductive surgery with HIPEC and adjuvant chemotherapy, a new retroperitoneal lesion was noted on imaging. After resection, molecular testing indicated an STK11 mutation, and histology was consistent with an STK11 adnexal tumor. A high index of suspicion is required to make the diagnosis of STK11 adnexal tumor due to its non-distinct pathology and IHC staining. Due to the rarity of this neoplasm, analysis of current and future cases of the STK11 adnexal tumor is necessary to understand its pathogenesis, genetic mutational analysis, clinical course, and best treatment options.http://www.sciencedirect.com/science/article/pii/S2352578924002005Ovarian cancerSTK11 adnexal tumorPeutz-Jeghers syndromeMalignant peritoneal mesothelioma
spellingShingle Christina R. Rutherford
Taylor A. Rives
Dava W. Piecoro
Charles S. Dietrich
Malignant STK11 adnexal tumor harboring a somatic mutation in a woman previously diagnosed with mesothelioma, a case report
Gynecologic Oncology Reports
Ovarian cancer
STK11 adnexal tumor
Peutz-Jeghers syndrome
Malignant peritoneal mesothelioma
title Malignant STK11 adnexal tumor harboring a somatic mutation in a woman previously diagnosed with mesothelioma, a case report
title_full Malignant STK11 adnexal tumor harboring a somatic mutation in a woman previously diagnosed with mesothelioma, a case report
title_fullStr Malignant STK11 adnexal tumor harboring a somatic mutation in a woman previously diagnosed with mesothelioma, a case report
title_full_unstemmed Malignant STK11 adnexal tumor harboring a somatic mutation in a woman previously diagnosed with mesothelioma, a case report
title_short Malignant STK11 adnexal tumor harboring a somatic mutation in a woman previously diagnosed with mesothelioma, a case report
title_sort malignant stk11 adnexal tumor harboring a somatic mutation in a woman previously diagnosed with mesothelioma a case report
topic Ovarian cancer
STK11 adnexal tumor
Peutz-Jeghers syndrome
Malignant peritoneal mesothelioma
url http://www.sciencedirect.com/science/article/pii/S2352578924002005
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