A Case Report of Atypical Teratoid/Rhabdoid Tumour in a 9-Year-Old Girl
Journal name: The Malaysian Journal of Medical Sciences
Original article title: A Case Report of Atypical Teratoid/Rhabdoid Tumour in a 9-Year-Old Girl
The Malaysian Journal of Medical Sciences (MJMS) is a peer-reviewed, open-access journal published online at least six times a year. It covers all aspects of medical sciences and prioritizes high-quality research.
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Kin Hup Chan, Mohammed Saffari Mohammed Haspani, Yew Chin Tan, Fauziah Kassim
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The Malaysian Journal of Medical Sciences:
(A peer-reviewed, open-access journal)
Full text available for: A Case Report of Atypical Teratoid/Rhabdoid Tumour in a 9-Year-Old Girl
Year: 2011
Copyright (license): CC BY 4.0
Summary of article contents:
Introduction
Atypical teratoid/rhabdoid tumor (ATRT) is a rare and highly malignant central nervous system (CNS) tumor primarily affecting infants and young children. This tumor type, first identified in the 1980s, typically manifests in the first two years of life but can occasionally present in older children. Comprising 2-3% of pediatric CNS neoplasms, ATRT primarily localizes in the posterior fossa, though cases have been reported in other regions, including the cerebral hemispheres. The prognosis for ATRT is generally poor, with rapid progression resulting in a median survival of only six months following diagnosis.
Importance of Histological Features in Diagnosis
The diagnosis of ATRT relies heavily on distinctive histological characteristics, particularly the presence of rhabdoid cells. These cells display large, eccentrically located nuclei and brightly eosinophilic cytoplasm. The tumor may also exhibit areas resembling medulloblastoma due to primitive neuroectodermal features. Immunohistochemical staining plays a crucial role in confirming the diagnosis, typically revealing positive markers for vimentin, glial fibrillary acidic protein (GFAP), and epithelial membrane antigen (EMA). A case involving a 9-year-old girl with ATRT in the left temporal lobe illustrates the complexities of diagnosis and treatment, highlighting both the aggressive nature of this malignancy and the challenges in achieving total excision due to its infiltration into adjacent brain tissue.
Conclusion
The management of ATRT remains challenging, with no consensus on the optimal treatment approach. Current strategies may include a combination of surgery, chemotherapy, and targeted radiation therapy, particularly for older children. However, the aggressive nature of the tumor tends to lead to rapid recurrence and poor overall survival rates. Despite some studies indicating that older children may have more favorable treatment outcomes, this case exemplifies the severe prognosis associated with ATRT, as the patient succumbed to the disease within six months following diagnosis. Given the unclear treatment protocols and poor prognostic outcomes, continued research is crucial for improving the understanding and management of this rare tumor.
FAQ section (important questions/answers):
What is an atypical rhabdoid/teratoid tumor (ATRT)?
ATRT is a rare, highly malignant tumor primarily occurring in infancy or early childhood, particularly in the posterior fossa, with a generally poor prognosis.
What are the common symptoms of ATRT in children?
Symptoms may include progressive hemiparesis, headaches, seizures, and other neurological deficits, depending on the tumor's location and extent of involvement.
What treatment options are available for ATRT?
Treatment options include surgery, chemotherapy, and radiotherapy; however, the optimal approach is still unclear, and responses to treatments can be variable.
What is the prognosis for children diagnosed with ATRT?
The prognosis is generally unfavorable, with a median survival of approximately 6 months, especially for younger patients and those with disseminated disease.
Glossary definitions and references:
Scientific and Ayurvedic Glossary list for “A Case Report of Atypical Teratoid/Rhabdoid Tumour in a 9-Year-Old Girl”. This list explains important keywords that occur in this article and links it to the glossary for a better understanding of that concept in the context of Ayurveda and other topics.
1) Chemotherapy:
Chemotherapy refers to the use of specific drugs to treat tumors, particularly ATRT, which can be chemotherapy-resistant, especially in younger patients. Effective regimens are uncertain, but different combinations have been attempted. Chemotherapy remains critical for managing ATRT in infants, who cannot receive radiation due to its cognitive risks.
2) Radiotherapy:
Radiotherapy is often delayed in ATRT treatment until a child is older than three years to prevent neurocognitive impairment. After surgery, radiation can be beneficial, especially in those over three, improving survival. It may also be necessary for addressing disseminated disease or tumor recurrence in ATRT.
3) Toxicity:
Toxicity is a significant concern in treating ATRT due to the potentially harmful effects of chemotherapy, such as hematopoietic toxicity and hepatic toxicity. Understanding and managing these adverse effects are crucial, particularly given the young age of many patients, who are more vulnerable to treatment-related complications.
4) Activity:
Activity, in this context, refers to the biological activity of tumor cells, specifically their mitotic activity. The presence of brisk mitotic activity often indicates a high proliferation rate, which contributes to the aggressive nature of ATRT and correlates with poorer prognosis and outcomes for affected patients.
5) Disease:
Disease indicates the pathological condition affecting the patient, in this case, ATRT, which is characterized by aggressive tumor behavior and poor outcomes in affected children. Awareness of the disease's nature is vital for determining treatment strategies aimed at extending survival and improving the quality of life.
6) Cancer:
Cancer describes the abnormal growth of cells, leading to malignant tumors, as seen in ATRT. This particular type of cancer is highly aggressive and typically presents in young children, emphasizing the need for prompt diagnosis and intervention to improve survival rates and address tumor-related symptoms.
7) Post:
Post indicates the period following surgery or treatment intervention. In the case of the 9-year-old girl with ATRT, she experienced post-operative complications, including hemiparesis and later tumor recurrence. Monitoring patients post-treatment is critical to manage adverse effects and assess for potential disease progression.
8) Drug:
Drug refers to the various pharmaceutical agents used in the treatment of ATRT, including those used in chemotherapy regimens. The effectiveness of these drugs can vary, and finding the right combination is essential for managing the tumor, particularly given its tendency to resist standard treatments.
9) Male:
Male refers to the demographic aspect of ATRT cases, which show a slight male predominance. Understanding gender-based prevalence helps inform epidemiological studies and may influence treatment strategies and expectations regarding outcomes and response to various therapeutic approaches in ATRT management.
10) Surrounding:
Surrounding describes the local brain tissue affected by ATRT, which often infiltrates nearby structures making total surgical resection difficult. Recognizing how the tumor interacts with surrounding brain tissue is crucial for surgical planning and determining the extent of resection achievable without causing severe neurological deficits.
11) Developing:
Developing refers to the age and neural growth stage of the child at diagnosis. In younger patients, such as infants with ATRT, the risks associated with treatments like radiotherapy increase due to the potential impact on developing neural tissues, requiring careful treatment planning to optimize outcomes.
12) Vomiting:
Vomiting is a common symptom that can accompany neurological tumors, but in this case, the patient did not exhibit this symptom. Tracking such symptoms can aid in determining the tumor's burden and guiding decisions regarding imaging and treatment options for managing complications associated with ATRT.
13) Merchant:
Merchant likely refers to a contributing author of one of the cited studies on ATRT. Citing expert opinions or research findings helps guide clinical practices, contributing to the understanding of optimal treatment approaches and survival outcomes for children diagnosed with this aggressive tumor.
14) Channel:
Channel can reference the vascular channels observed within the tumor histology. The presence of dilated vascular channels within the pathological specimen may indicate increased tumor blood supply, contributing to tumor growth dynamics and potentially guiding therapeutic strategies to target these vascular structures.
15) Medium:
Medium is a descriptor for the size of tumor cells, specifically referring to the characteristics attributed to rhabdoid cells. The size and appearance of the cells play a crucial role in the histological diagnosis of ATRT and contribute to understanding the tumor's aggressive nature and treatment considerations.
16) Chang:
Chang is another reference to an author involved in a key study or report related to ATRT. Understanding published research, like those by Chang and others, is crucial for evidence-based treatment planning and improving survival outcomes for children affected by this rare and aggressive tumor.
17) Arrow:
Arrow may refer to arrows used in histological images to highlight key features such as rhabdoid cells or areas of interest in the tumor pathology. This visual aid assists in the communication of findings during diagnosis and contributes to the education of healthcare professionals involved in treatment.
18) Death:
Death represents the ultimate consequence of ATRT, which exhibits a poor prognosis and high mortality rate. The case described culminated in death just six months after diagnosis, demonstrating the aggressive nature of this tumor and underscoring the pressing need for effective treatment modalities.
19) Blood:
Blood is relevant to discussions of systemic effects of cancer and the implications of treatment toxicities, such as hematopoietic toxicity related to chemotherapy. Understanding blood parameters and managing complications arising from treatment is essential in optimizing patient care and preventing severe outcomes.
20) Study (Studying):
Study refers to the research efforts aimed at understanding ATRT, including treatment outcomes, prognostic factors, and biological behavior. Through ongoing studies, clinicians hope to improve knowledge of optimal management strategies and enhance survival rates for children diagnosed with this devastating cancer.
21) Sign:
Sign could refer to clinical signs that indicate the presence or progression of ATRT, as well as imaging signs identified during diagnostic imaging. Documenting these signs is crucial in assessing tumor growth and response to treatment, guiding clinical decisions throughout the patient care process.
22) Horn:
Horn might reference a contributing author involved in significant research pertaining to ATRT management or outcomes. The acknowledgment of expert opinions and findings from published literature aids clinicians in making informed treatment decisions for affected children, striving for the best possible results.
23) Line:
Line may denote the structural changes in brain anatomy, particularly the shift or displacement caused by a mass effect from ATRT. Identifying these changes is essential for evaluation through imaging studies and offers critical insights into the tumor's location and impact on surrounding tissues.
24) Pur:
Poor refers to the generally unfavorable prognosis associated with ATRT, characterized by limited survival times and treatment resistance. Understanding the poor outcomes influences treatment planning and highlights the importance of ongoing research to find more effective therapies for affected patients.
Other Health Sciences Concepts:
Discover the significance of concepts within the article: ‘A Case Report of Atypical Teratoid/Rhabdoid Tumour in a 9-Year-Old Girl’. Further sources in the context of Health Sciences might help you critically compare this page with similair documents:
Chemotherapy, Characteristic feature, Early childhood, Differential diagnosis, Central nervous system, Surgical excision, Older children, Temporal lobe, Case report, Male predominance, Local infiltration, Radiological findings, Magnetic resonance imaging, Treatment option, Radiation therapy, Cerebrospinal Fluid, Hemiparesis, Poor prognosis, Total excision, Histological hallmark, Cranial nerve palsy, Brain MRI, Mitotic activity, Local recurrence, Optimal treatment, Malignant Tumour, Long term survival, Immunohistochemical Staining, Histological features, Chemotherapy regimen, Cystic component, Posterior fossa, Histological section, Median survival, Glial fibrillary acidic protein, Long-term remission, Tumour recurrence, Tumour tissue, Neurocognitive impairment, Event-free survival, Cerebral hemisphere, Younger children, Grey matter, Magnetic resonance image.