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Tkak H, Ghanam A, Belahcen M, Kamaoui I, Bennani A, Myri N, Elouali A, Rkain M, Babakhouya A, Benajiba N. Exceptional case of a hemangioma-like rabdomyosarcoma in the hand's palm. Radiol Case Rep 2024; 19:3508-3511. [PMID: 38881619 PMCID: PMC11179561 DOI: 10.1016/j.radcr.2024.05.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 05/02/2024] [Accepted: 05/06/2024] [Indexed: 06/18/2024] Open
Abstract
Rhabdomyosarcoma is a malignant tumor in children that might mimic a benign tumor, such as infantile hemangioma, particularly when detected early. Although rhabdomyosarcoma rarely occurs in the hand, its prognosis is generally poor, and successful treatment relies on a complete and radical surgical excision. We present a case of rhabdomyosarcoma located in the palm of an infant's hand, initially presenting clinical and radiological features suggestive of a vascular tumor. The resection of this mass was radical, and histological analysis and immunohistochemistry returned in favor of embryonic rhabdomyosarcoma. In similar cases recorded in the literature, the diagnosis may be first mistaken for that of a hemangioma, then confirmed by histology. This underlines the importance of a systematic anatomopathological examination of all tissues removed surgically.
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Affiliation(s)
- Hassnae Tkak
- Department of Pediatrics, University Hospital Mohamed VI, Faculty of Medicine and Pharmacy, University Mohamed first Oujda, Oujda, Morocco
| | - Ayad Ghanam
- Department of Pediatrics, University Hospital Mohamed VI, Faculty of Medicine and Pharmacy, University Mohamed first Oujda, Oujda, Morocco
| | - Mohamed Belahcen
- Pediatrics Surgery Department, Mohammed VI University Hospital, Oujda Faculty of Medicine and Pharmacy, Oujda, Morocco
| | - Imane Kamaoui
- Radiology Department, Mohammed VI University Hospital, Oujda Faculty of Medicine and Pharmacy, Oujda, Morocco
| | - Amal Bennani
- Anatomopathology Department, Mohammed VI University Hospital, Oujda Faculty of Medicine and Pharmacy, Oujda, Morocco
| | - Nadir Myri
- Anatomopathology Department, Mohammed VI University Hospital, Oujda Faculty of Medicine and Pharmacy, Oujda, Morocco
| | - Aziza Elouali
- Department of Pediatrics, University Hospital Mohamed VI, Faculty of Medicine and Pharmacy, University Mohamed first Oujda, Oujda, Morocco
| | - Maria Rkain
- Department of Pediatrics, University Hospital Mohamed VI, Faculty of Medicine and Pharmacy, University Mohamed first Oujda, Oujda, Morocco
| | - Abdeladim Babakhouya
- Department of Pediatrics, University Hospital Mohamed VI, Faculty of Medicine and Pharmacy, University Mohamed first Oujda, Oujda, Morocco
| | - Noufissa Benajiba
- Department of Pediatrics, Ibn Rochd Hospital University, Casablanca, Morocco
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Hammoudeh SM, Ng Y, Wei BR, Madsen TD, Yadav MP, Simpson RM, Weigert R, Randazzo PA. Tongue orthotopic xenografts to study fusion-negative rhabdomyosarcoma invasion and metastasis in live animals. CELL REPORTS METHODS 2024; 4:100802. [PMID: 38964316 PMCID: PMC11294838 DOI: 10.1016/j.crmeth.2024.100802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 04/24/2024] [Accepted: 06/05/2024] [Indexed: 07/06/2024]
Abstract
PAX3/7 fusion-negative rhabdomyosarcoma (FN-RMS) is a childhood mesodermal lineage malignancy with a poor prognosis for metastatic or relapsed cases. Limited understanding of advanced FN-RMS is partially attributed to the absence of sequential invasion and dissemination events and the challenge in studying cell behavior, using, for example, non-invasive intravital microscopy (IVM), in currently used xenograft models. Here, we developed an orthotopic tongue xenograft model of FN-RMS to study cell behavior and the molecular basis of invasion and metastasis using IVM. FN-RMS cells are retained in the tongue and invade locally into muscle mysial spaces and vascular lumen, with evidence of hematogenous dissemination to the lungs and lymphatic dissemination to lymph nodes. Using IVM of tongue xenografts reveals shifts in cellular phenotype, migration to blood and lymphatic vessels, and lymphatic intravasation. Insight from this model into tumor invasion and metastasis at the tissue, cellular, and subcellular level can guide new therapeutic avenues for advanced FN-RMS.
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Affiliation(s)
- Sarah M Hammoudeh
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Yeap Ng
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA; CCR-Intravital Microscopy Core, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Bih-Rong Wei
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Thomas D Madsen
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA; Copenhagen Center for Glycomics, University of Copenhagen, Department for Cellular and Molecular Medicine, Copenhagen, Denmark
| | - Mukesh P Yadav
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - R Mark Simpson
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Roberto Weigert
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA; CCR-Intravital Microscopy Core, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA.
| | - Paul A Randazzo
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA.
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Hammoudeh SM, Ng Y, Wei BR, Madsen TD, Simpson RM, Weigert R, Randazzo PA. Fusion-negative rhabdomyosarcoma orthotopic tongue xenografts for study of invasion, intravasation and metastasis in live animals. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.21.558858. [PMID: 38076999 PMCID: PMC10705524 DOI: 10.1101/2023.09.21.558858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
PAX3/7 Fusion-negative rhabdomyosarcoma (FN-RMS) is a childhood mesodermal lineage malignancy with a poor prognosis for metastatic or relapsed cases. Towards achieving a more complete understanding of advanced FN-RMS, we developed an orthotopic tongue xenograft model for studies of molecular basis of FN-RMS invasion and metastasis. The behavior of FN-RMS cells injected into murine tongue was examined using in vivo bioluminescence imaging, non-invasive intravital microscopy (IVM), and histopathology and compared to the prevailing hindlimb intramuscular and subcutaneous xenografts. FN-RMS cells were retained in the tongue and invaded locally into muscle mysial spaces and vascular lumen. While evidence of hematogenous dissemination to the lungs occurred in tongue and intramuscular xenografts, evidence of local invasion and lymphatic dissemination to lymph nodes only occurred in tongue xenografts. IVM and RNA-seq of tongue xenografts reveal shifts in cellular phenotype and differentiation state in tongue xenografts. IVM also shows homing to blood and lymphatic vessels, lymphatic intravasation, and dynamic membrane protrusions. Based on these findings, the tongue orthotopic xenograft of FN-RMS is a valuable model for tumor progression studies at the tissue, cellular and subcellular levels providing insight into kinetics and molecular bases of tumor invasion and metastasis and, hence, new therapeutic avenues for advanced FN-RMS.
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Affiliation(s)
- Sarah M Hammoudeh
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Yeap Ng
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
- CCR-Intravital Microscopy Core, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Bih-Rong Wei
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Thomas D Madsen
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
- Copenhagen Center for Glycomics, University of Copenhagen, Department for Cellular and Molecular Medicine; Copenhagen, Denmark
| | - R Mark Simpson
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Roberto Weigert
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
- CCR-Intravital Microscopy Core, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Paul A Randazzo
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
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Jadhav T, Madakshira MG, Garud S. Embryonal rhabdomyosarcoma of the uterine cervix in an adult female. Autops Case Rep 2023; 13:e2023419. [PMID: 36777814 PMCID: PMC9910305 DOI: 10.4322/acr.2023.419] [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: 10/22/2022] [Accepted: 01/04/2023] [Indexed: 02/04/2023]
Abstract
Embryonal rhabdomyosarcoma (RMS) of the female genital tract is an uncommon malignancy, presenting mainly in the pediatric and adolescent populations, primarily affecting the first two decades of life. This malignancy presentation in adulthood is rare and is seldom seen. The incidence of this tumor affecting adult females is approximately 0.4 - 1%, with the common site being the vagina. This tumor infrequently involves the cervix. RMS has a poor survival rate and once diagnosed, it requires aggressive management by radical surgery accompanied by chemoradiation. We present a case of an anaplastic variant of embryonal RMS of the uterine cervix presenting as a cervical polyp in a 36-year-old female who complained of dyspareunia and post-coital bleeding.
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Affiliation(s)
- Toyaja Jadhav
- 12 Airforce HospitalDepartment of Laboratory SciencesGorakhpurUttar PradeshIndia12 Airforce Hospital, Department of Laboratory Sciences, Gorakhpur, Uttar Pradesh, India
| | - Manoj Gopal Madakshira
- Command HospitalDepartment of Pathology LucknowUttar PradeshIndiaCommand Hospital, Department of Pathology Lucknow, Uttar Pradesh, India
| | - Sushil Garud
- 12 Airforce HospitalDepartment of Obstetrics and GynecologyGorakhpurUttar PradeshIndia12 Airforce Hospital, Department of Obstetrics and Gynecology, Gorakhpur, Uttar Pradesh, India
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