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Wang T, Leng B. Gastric Leiomyosarcoma in Post-Gastrointestinal Stromal Tumor Era: Revisit. Adv Anat Pathol 2024; 31:265-270. [PMID: 38627880 DOI: 10.1097/pap.0000000000000445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2024]
Abstract
Primary gastric leiomyosarcoma is an exceptionally rare disease. This review covers 41 post-gastrointestinal stromal tumor (GIST) era gastric leiomyosarcoma cases that are supported by immunohistochemistry markers. Other spindle cell lesions are also excluded through histological and immunohistochemistry evaluations. The patients range from 3 to 82 years old, with an average age of 54.6 years. The male-to-female ratio is 1.4:1, from diverse geographic areas. Patients may experience abdominal symptoms, and tumor sizes vary between 1 cm and 22 cm. Morphologically, tumors originate from the muscularis propria or the muscularis mucosae, well-circumscribed with spindle cells arranged in fascicule. Tumoral cells exhibit positivity for smooth muscle markers while being negative for GIST markers and others. The mitotic index ranges from 2 to 500/50 high power field. Ki-67 index varies from 15% to 70%. Management typically involves gastrectomy and other appropriate treatments, with tumor recurrence being uncommon. 56% of patients are alive, with 5 patients dying from this disease. Statistical analyses conducted on post-GIST era cases reveal that a mitotic index of ≥100/50 high power field, tumor recurrence, metastasis, or positive lymph nodes significantly correlate with prognosis.
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Affiliation(s)
- Tengfei Wang
- Department of Pathology, Baylor Scott and White Health, Temple, TX
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Gong QX, Ding Y, Zhang WM, Zhang JW, Zhang ZH. De novo dedifferentiated SDH-deficient gastrointestinal stromal tumor with MDM2 amplification: case report and literature review. Front Oncol 2023; 13:1233561. [PMID: 37781202 PMCID: PMC10540086 DOI: 10.3389/fonc.2023.1233561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 08/17/2023] [Indexed: 10/03/2023] Open
Abstract
The dedifferentiation of the gastrointestinal stromal tumors (GISTs) has been reported in a small number of cases, usually under the pressure of the tyrosine kinase inhibitor (TKI) treatment. Herein, we described a de novo dedifferentiated GIST with the SDH deficiency in a 32-year-old Chinese woman. The tumor was located on the lesser curvature of the gastric antrum, measuring 4.1x9.1 cm2. Microscopically, the tumor was composed of 2 distinct morphological populations, mild epithelioid cells arranged in the multinodular growth pattern and hyperchromatic spindle cells arranged in the fascicular or sheet-like architecture. The two zones showed different immunophenotypes. The former proved to be an epithelioid GIST with the positive expression for C-KIT, DOG-1, and CD34, and the latter expressed the CKpan and P53, but negative for the C-KIT, DOG-1, and CD34. However, the SDHB staining was negative in both areas. Genetically, the next-generation sequencing (NGS) analysis showed the SDHC mutation (p.S48*) in both components and the MDM2 amplification was only in the spindle cell area. The lesion was diagnosed as the SDH-deficient GIST with the epithelial cell dedifferentiation. We proposed that the P53 associated gene alteration or other alternative escape mechanisms for the KIT-independent signaling pathways might play a role in the dedifferentiation.
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Affiliation(s)
| | | | | | | | - Zhi-Hong Zhang
- Department of Pathology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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3
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Yamamoto A, Tateishi Y, Aikou S, Seto Y, Ushiku T. The first case of gastric leiomyosarcoma developed through malignant transformation of leiomyoma. Pathol Int 2021; 71:837-843. [PMID: 34520615 DOI: 10.1111/pin.13165] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 08/24/2021] [Indexed: 12/24/2022]
Abstract
Malignant transformation of gastric leiomyoma has not been reported, and therefore it is considered to have virtually no malignant potential. We report a case of gastric leiomyosarcoma arising from leiomyoma. The patient is a 72-year-old man with a submucosal mass measuring 20 mm in diameter, which was incidentally identified by an endoscopic surveillance. A biopsy suggested a diagnosis of leiomyosarcoma, and local excision was performed. Pathological examination revealed that the tumor was composed of two distinct components: typical leiomyoma-like area in the periphery and leiomyosarcoma component exhibiting higher cellularity, prominent nuclear atypia, necrosis, and increased mitosis. Immunohistochemically, in the latter, p53 overexpression, increased Ki-67 labeling index, and attenuated expression of smooth muscle markers were noted. This is the first report to demonstrate the presence of leiomyoma-leiomyosarcoma sequence in the stomach that is well recognized in the uterus. Our observation highlights the potential occurrence of malignant transformation of gastrointestinal leiomyoma.
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Affiliation(s)
- Amane Yamamoto
- Department of Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yoko Tateishi
- Department of Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Susumu Aikou
- Gastrointestinal Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yasuyuki Seto
- Gastrointestinal Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Tetsuo Ushiku
- Department of Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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4
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Takagi T, Saito S, Yokota S, Kaneko Y, Takahashi K, Kanamaru R, Kurashina K, Hosoya Y, Kitayama J, Kawata H, Osawa H, Sata N. Laparoscopic and endoscopic cooperative surgery for leiomyosarcoma of the stomach: a case report with a review of the literature. Surg Case Rep 2021; 7:146. [PMID: 34143361 PMCID: PMC8212316 DOI: 10.1186/s40792-021-01218-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 05/26/2021] [Indexed: 11/12/2022] Open
Abstract
Background Leiomyosarcoma is a rare tumor that could originate from the gastrointestinal tract, uterus, kidney, retroperitoneum, and the soft tissues of the extremities. It accounts for only 1% of all gastrointestinal mesenchymal tumors and primary leiomyosarcoma of the stomach is extremely rare. Most cases reported as leiomyosarcoma of the stomach before the development of KIT immunohistochemistry might be gastrointestinal stromal tumors (GISTs) of the stomach and only 18 cases of leiomyosarcoma of the stomach have been reported since early 2000s. We report here a patient with leiomyosarcoma of the stomach treated by laparoscopic and endoscopic cooperative surgery (LECS). Case presentation A 59-year-old man was referred to our hospital for an early gastric cancer, which was initially treated by endoscopic submucosal dissection. Six months after his initial treatment, a follow-up esophagogastroduodenoscopy revealed a small polypoid lesion at the lesser curvature of the proximal stomach, which appeared to be a hyperplastic polyp. However, one and a half years later, the lesion grew and showed more irregular surface. Biopsy at the time revealed smooth muscle cell proliferation suggestive of leiomyoma. Three years later, the lesion grew even larger and biopsy showed pleomorphic spindle cells. Immunohistochemical study showed positive staining for alpha-smooth muscle actin and desmin, but negative for c-kit and CD34. Ki-67 labeling index was nearly 60%. Based on these findings, the diagnosis of leiomyosarcoma was established. The patient subsequently underwent a partial gastrectomy by LECS. The patient is currently in good condition without recurrence or metastasis at 12 months after surgery. Conclusions Leiomyosarcoma of the stomach is extremely rare. This is the first report of leiomyosarcoma of the stomach treated by LECS. We could also follow its appearance change through endoscopic examination for 3 years.
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Affiliation(s)
- Toru Takagi
- Department of Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Shin Saito
- Department of Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan.
| | - Shinichiro Yokota
- Department of Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan.,Department of Surgery, Allegheny General Hospital, 320 East North Avenue, Pittsburgh, PA, 1521, USA
| | - Yuki Kaneko
- Department of Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Kazuya Takahashi
- Department of Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Rihito Kanamaru
- Department of Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Kentaro Kurashina
- Department of Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Yoshinori Hosoya
- Department of Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Joji Kitayama
- Department of Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Hirotoshi Kawata
- Department of Pathology, Jichi Medical University, Shimotsuke, Japan
| | - Hiroyuki Osawa
- Department of Gastroenterology, Jichi Medical University, Shimotsuke, Japan
| | - Naohiro Sata
- Department of Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
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5
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Kang WZ, Xue LY, Tian YT. Leiomyosarcoma of the stomach: A case report. World J Clin Cases 2019. [DOI: 10.12998/wjcc.v7.i21.3558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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Kang WZ, Xue LY, Tian YT. Leiomyosarcoma of the stomach: A case report. World J Clin Cases 2019; 7:3575-3582. [PMID: 31750340 PMCID: PMC6854410 DOI: 10.12998/wjcc.v7.i21.3575] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 09/19/2019] [Accepted: 10/05/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Leiomyosarcoma of the stomach is extremely rare, and only 13 cases have been reported in the literature. Before the advent of KIT immunohistochemistry, gastrointestinal stromal tumors (GISTs) were misdiagnosed as leiomyomas and leiomyosarcomas. Leiomyosarcoma rarely occurs in organs besides the uterus and is rarely located in the stomach.
CASE SUMMARY A 57-year-old woman presented with the symptom of melena over a one-month period. She had suffered weight loss, weakness, nausea and vomiting for fifteen days. At a local hospital, computed tomography showed a very large mass in the stomach, and the results of endoscopic examination and histopathological diagnosis were unclear. She received transfusion therapy and was transferred to our hospital. Upon arrival at our hospital, the patient was anemic. She denied any family history and had no specific past history. No signs of pulmonary metastasis were found on chest radiographs. Magnetic resonance imaging and computed tomography confirmed a very large tumor in the stomach, and no visible signs of metastatic disease were found. On October 30, 2013, the patient underwent resection of the stomach tumor and did not undergo any adjuvant treatment. The margins were negative and she had an uneventful recovery and was discharged after 12 d. One year after surgery, the patient died at home, and the cause of death were gastrointestinal obstruction and malnutrition. During that time, she was treated with Chinese medicine but the effect was not ideal. Because of gastrointestinal obstruction, the patient did not receive any re-examination.
CONCLUSION Surgical resection is the standard treatment for gastric leiomyosarcoma. The diagnosis of this tumor mainly depends on histopathological examination. This case may suggest the aggressive behavior and poor prognosis of this tumor.
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Affiliation(s)
- Wen-Zhe Kang
- Department of Pancreatic and Gastric Surgery, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Li-Yan Xue
- Department of Pathology, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Yan-Tao Tian
- Department of Pancreatic and Gastric Surgery, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Yang B, Lu X. The malignancy among gastric submucosal tumor. Transl Cancer Res 2019; 8:2654-2666. [PMID: 35117022 PMCID: PMC8798018 DOI: 10.21037/tcr.2019.10.41] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 10/10/2019] [Indexed: 02/05/2023]
Abstract
The origin and characteristics of most submucosal tumors (SMTs) cannot easily be confirmed by gastrointestinal endoscopy or other radiological examinations. Excluding GISTs, for those other gastric SMTs, most of which are deemed benign, the necessity and timing of intervention has been ignored. Thus, the malignancy of gastric SMTs still remains unknown. In order to summarize the malignancy of these gastric SMTs, we reviewed literatures and analyzed cases of gastric SMTs including heterotopic pancreas, leiomyoma, schwannoma, glomus tumor, hemangioendothelioma, granular cell tumor (GCT), lipoma, hemangiopericytoma, lymphangioma and neurofibroma. In these literatures, there are cases of malignancy among heterotopic pancreas, leiomyoma, schwannoma, glomus tumor, hemangioendothelioma and GCT. As a result, it suggests that although most of gastric SMTs are considered benign, there are still possibilities of malignancy, which requires our attention, even active intervention and long-term follow-up.
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Affiliation(s)
- Bin Yang
- Department of Gastroenterology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Xinliang Lu
- Department of Gastroenterology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
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Kitagawa H, Kaneko M, Kano M, Ibuki Y, Amatya VJ, Takeshima Y, Hirabayashi N, Hirota S. Coexistence of gastrointestinal stromal tumor and leiomyosarcoma of the stomach presenting as a collision tumor: A case report and review of literature. Pathol Int 2018; 68:313-317. [PMID: 29575341 DOI: 10.1111/pin.12662] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 02/16/2018] [Indexed: 01/15/2023]
Abstract
Collision tumor of the stomach is rare. We report a rare case of a gastric collision tumor consisting of gastrointestinal stromal tumors (GISTs) and leiomyosarcoma (LMS). Computed tomography scan revealed a 15 cm sized mass in the posterior wall of the body of the stomach. Gross examination of the wedge resection specimen showed the tumor located in the muscularis propria with extramural protrusion into the peritoneal cavity and the gastric cavity with geographic necrosis, hemorrhage, and mucosal ulceration. Histologically, the majority of the tumor consisted of the GIST component and the minor area in the submucosal region consisted of the LMS component. The tumor showed an abrupt transition between GIST and LMS by histologically and immunohistochemically, suggesting a collision tumor. Furthermore, the GIST components exhibited a c-kit exon 11 mutation. On the other hand, LMS component exhibited neither c-kit nor platelet-derived growth factor receptor-alpha (PDGFRA) mutation. Here we describe a case of the collision tumor consisting of GIST and LMS and its literature review.
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Affiliation(s)
- Hiroki Kitagawa
- Department of Surgery, Hiroshima City Asa Citizens Hospital, Hiroshima, Japan
| | - Mayumi Kaneko
- Department of Pathology, Hiroshima City Asa Citizens Hospital, Hiroshima, Japan
| | - Mikihiro Kano
- Department of Surgery, Hiroshima City Asa Citizens Hospital, Hiroshima, Japan
| | - Yuta Ibuki
- Department of Surgery, Hiroshima City Asa Citizens Hospital, Hiroshima, Japan
| | - Vishwa Jeet Amatya
- Department of Pathology, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan
| | - Yukio Takeshima
- Department of Pathology, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan
| | - Naoki Hirabayashi
- Department of Surgery, Hiroshima City Asa Citizens Hospital, Hiroshima, Japan
| | - Seiichi Hirota
- Department of Surgical Pathology, Hyogo Medical College of Medicine, Nishinomiya, Japan
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Hilal L, Barada K, Mukherji D, Temraz S, Shamseddine A. Gastrointestinal (GI) leiomyosarcoma (LMS) case series and review on diagnosis, management, and prognosis. Med Oncol 2016; 33:20. [PMID: 26786155 DOI: 10.1007/s12032-016-0730-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Accepted: 01/07/2016] [Indexed: 02/07/2023]
Abstract
This review of 76 gastrointestinal (GI) leiomyosarcoma (LMS) cases that include 11 cases from the American University of Beirut Medical Center represents, to our knowledge, the largest number of combined GI LMS cases reported. The age range of GI LMS is variable, and the presentation is non-specific, making pathological diagnosis essential. LMSs usually lack CD117 and CD 34 mutations and are usually positive for smooth muscle cell markers. The review highlights surgery as the mainstay of treatment with negative margins attained most of the times. Adjuvant chemotherapy is used in around 7-27 % of the cases mainly for small intestinal and colorectal LMS. The relatively small number of patients is a limitation on outcome analysis. However, LMS has a risk of recurrence reaching 39-80 % and secondary metastasis reaching 55-71 % in small intestinal and colorectal cases. In light of the high frequency of recurrence and metastasis, enrolling patients in clinical randomized trials to investigate the role of chemotherapy, radiation therapy, and targeted therapy is required for better control of this rare aggressive GI tumor.
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Affiliation(s)
- Lara Hilal
- Department of Radiation Oncology, Naef K. Basile Cancer Institute, American University of Beirut Medical Center, Beirut, Lebanon.
| | - Kassem Barada
- Gastrointestinal Division, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
| | - Deborah Mukherji
- Department of Internal Medicine, Naef K. Basile Cancer Institute, American University of Beirut Medical Center, Beirut, Lebanon.
| | - Sally Temraz
- Department of Internal Medicine, Naef K. Basile Cancer Institute, American University of Beirut Medical Center, Beirut, Lebanon.
| | - Ali Shamseddine
- Department of Internal Medicine, Naef K. Basile Cancer Institute, American University of Beirut Medical Center, Beirut, Lebanon.
- Hematology - Oncology Division, Tumor Registry, P.O.Box: 11-0236, Riad El Solh, Beirut, 110 72020, Lebanon.
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Jung JH, Im S, Choi HJ, Lee YS, Jung ES. Gastrointestinal stromal tumor with dedifferentiation to undifferentiated pleomorphic sarcoma. Pathol Int 2013; 63:479-82. [DOI: 10.1111/pin.12095] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Ji-Han Jung
- Department of Hospital Pathology; St. Vincent's Hospital, College of Medicine, The Catholic University of Korea; Suwon
| | - Soyoung Im
- Department of Hospital Pathology; St. Vincent's Hospital, College of Medicine, The Catholic University of Korea; Suwon
| | - Hyun Joo Choi
- Department of Hospital Pathology; St. Vincent's Hospital, College of Medicine, The Catholic University of Korea; Suwon
| | - Youn Soo Lee
- Department of Pathology; Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea; Seoul Republic of Korea
| | - Eun Sun Jung
- Department of Pathology; Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea; Seoul Republic of Korea
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Dedifferentiation in gastrointestinal stromal tumor to an anaplastic KIT-negative phenotype: a diagnostic pitfall: morphologic and molecular characterization of 8 cases occurring either de novo or after imatinib therapy. Am J Surg Pathol 2013; 37:385-92. [PMID: 23348204 DOI: 10.1097/pas.0b013e31826c1761] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Most gastrointestinal stromal tumors (GISTs) can be recognized by their monotonous cytologic features and overexpression of KIT oncoprotein. Altered morphology and loss of CD117 reactivity has been described previously after chronic imatinib treatment; however, this phenomenon has not been reported in imatinib-naive tumors. Eight patients with abrupt transition from a classic CD117-positive spindle cell GIST to an anaplastic CD117-negative tumor were investigated for underlying molecular mechanisms of tumor progression. Pathologic and molecular analysis was performed on each of the 2 components. Genomic DNA polymerase chain reaction for KIT, PDGFRA, BRAF, and KRAS hot spot mutations and fluorescence in situ hybridization for detecting KIT gene copy number alterations were performed. TP53 mutational analysis was performed in 5 cases. There were 7 men and 1 woman, with an age range of 23 to 65 years. Five of the primary tumors were located in the stomach, and 1 case each originated in the small bowel, colon, and rectum. In 3 patients, the dedifferentiated component occurred in the setting of imatinib resistance, whereas the remaining 5 occurred de novo. The dedifferentiated component had an anaplastic appearance, including 1 angiosarcomatous phenotype, with high mitotic activity and necrosis, and showed complete loss of CD117 (8/8) and CD34 (5/8) expression and de novo expression of either cytokeratin (4/8) or desmin (1/8). There was no difference in the KIT genotype between the 2 components. However, 2 imatinib-resistant tumors showed coexistence of KIT exon 11 and exon 13 mutations. Fluorescence in situ hybridization showed loss of 1 KIT gene in 3 cases and low-level amplification of KIT in 2 other cases in the CD117-negative component, compared with the CD117-positive area. TP53 mutation was identified in 1/5 cases tested, being present in both components. In summary, dedifferentiation in GIST may occur either de novo or after chronic imatinib exposure and can represent a diagnostic pitfall. This phenomenon is not related to additional KIT mutations, but might be secondary to genetic instability, either represented by loss of heterozygosity or low level of KIT amplification.
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