scholarly journals 180 The association of prenatally diagnosed cardiac rhabdomyoma and tuberous sclerosis complex

2021 ◽  
Author(s):  
Ana Ćorić ◽  
Tomislav Ćaleta ◽  
Iva Vukšić ◽  
Petra Džepina ◽  
Dorotea Ninković ◽  
...  
Keyword(s):  
Tuberous Sclerosis ◽  
Tuberous Sclerosis Complex ◽  
Cardiac Rhabdomyoma

Clinical, cellular, and molecular characterisation of cardiac rhabdomyoma in tuberous sclerosis

2021 ◽  
pp. 1-9
Author(s):  
Hamood N. Al Kindi ◽  
Ayman M. Ibrahim ◽  
Mohamed Roshdy ◽  
Besra S. Abdelghany ◽  
Dina Yehia ◽  
...  
Keyword(s):  
Tuberous Sclerosis ◽  
Clinical Features ◽  
Tuberous Sclerosis Complex ◽  
Potential Role ◽  
Severe Disease ◽  
Cardiac Rhabdomyoma ◽  
Urgent Surgery ◽  
Pathogenic Mutations ◽  
Personalised Treatment

Abstract Background: Rhabdomyoma is the most common cardiac tumour in children. It is usually associated with tuberous sclerosis complex caused by mutations in TSC-1 or TSC-2 genes. This tumour typically regresses by unknown mechanisms; however, it may cause inflow or outflow obstruction that necessitates urgent surgery. Here we investigate the clinical features and the genetic analysis of patients with tuberous sclerosis complex presenting with large rhabdomyoma tumours. We also investigate the potential role of autophagy and apoptosis in the pathogenesis of this tumour. Methods: All the patients with cardiac rhabdomyoma referred to Aswan Heart Centre from 2010 to 2018 were included in this study. Sanger sequencing was performed for coding exons and the flanking intronic regions of TSC1 and TSC2 genes. Histopathological evaluation, immunohistochemistry, and western blotting were performed with P62, LC3b, caspase3, and caspase7, to evaluate autophagic and apoptotic signaling. Results: Five patients were included and had the clinical features of tuberous sclerosis complex. Three patients, who were having obstructive tumours, were found to have pathogenic mutations in TSC-2. The expression of two autophagic markers, P62 and LC3b, and two apoptotic markers, caspase3 and caspase7, were increased in the tumour cells compared to normal surrounding myocardial tissue. Conclusion: All the patients with rhabdomyoma were diagnosed to have tuberous sclerosis complex. The patients who had pathogenic mutations in the TSC-2 gene had a severe disease form necessitating urgent intervention. We also demonstrate the potential role of autophagy and apoptosis as a possible mechanism for tumourigenesis and regression. Future studies will help in designing personalised treatment for cardiac rhabdomyoma.

scholarly journals A novel TSC2 c.4511 T > C missense variant associated with tuberous sclerosis complex

2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Shunzhi He ◽  
Na Lv ◽  
Hongchu Bao ◽  
Xiong Wang ◽  
Jing Li
Keyword(s):  
Tuberous Sclerosis ◽  
Tuberous Sclerosis Complex ◽  
Genetic Diagnosis ◽  
Missense Variant ◽  
Sporadic Case ◽  
Hereditary Disease ◽  
Multiple Organ ◽  
Cardiac Rhabdomyoma ◽  
Pathogenic Variants ◽  
Organ Systems

Abstract Background Tuberous sclerosis complex (TSC) is an autosomal-dominant hereditary disease characterized by hamartomas of multiple organ systems, including the brain, skin, heart, kidney and lung. Genetically, TSC is caused by pathogenic variants in the TSC1 or TSC2 gene. Case presentation We reported a sporadic case of a 32-year-old Han Chinese male diagnosed with TSC, whose spouse had a history of two spontaneous miscarriages and an induced abortion of a 30-week fetus identified with cardiac rhabdomyoma by ultrasound. A novel heterozygous missense variant in the TSC2 gene (Exon35:c.4511 T > C:p.L1504P) was identified in the male patient and the aborted fetus by next-generation sequencing, but not in his wife or both his parents. According to the ACMG/AMP criteria, this variant was classified as a “likely pathogenic” variant. Conclusion The novel TSC2:c.4511 T > C variant identified was highly likely associated with TSC and could potentially lead to adverse reproductive outcomes. IVF-ET and pre-implantation genetic diagnosis for TSC are recommended for this patient in the future to prevent fetal TSC.

scholarly journals Tuberous sclerosis with cardiac rhabdomyoma: a case report

2017 ◽  
Vol 4 (2) ◽  
pp. 666
Author(s):  
Sunita Arora ◽  
Harnoorjit Kaur Brar ◽  
Prabhjot Kaur Dhillon
Keyword(s):  
Tuberous Sclerosis ◽  
Tuberous Sclerosis Complex ◽  
Genetic Disorder ◽  
Clinical Manifestations ◽  
Female Child ◽  
The Body ◽  
Cardiac Rhabdomyoma ◽  
Cardiac Evaluation ◽  
Benign Tumours ◽  
High Index Of Suspicion

Tuberous sclerosis or tuberous sclerosis complex (TSC) is a genetic disorder, caused by mutations on either of two genes TSC1 and TSC2. Clinical manifestations are caused by growth of benign tumours in different parts of the body. Ten months old female child with four major criteria of tuberous sclerosis complex and asymptomatic cardiac rhabdomyoma is presented. A case of TSC warrants cardiac evaluation for the presence of cardiac rhabdomyoma and if a cardiac rhabdomyoma is detected on antenatal ultrasound or postnatal echocardiography, one should have high index of suspicion for the diagnosis of TSC. Continued research on this disease has unfolded many realities regarding its etiology as well as treatment.

Everolimus-induced near-resolution of giant cardiac rhabdomyomas and large renal angiomyolipoma in a newborn with tuberous sclerosis complex

2016 ◽  
Vol 26 (5) ◽  
pp. 1025-1028 ◽  
Author(s):  
Massimo Colaneri ◽  
Andrea Quarti ◽  
Marco Pozzi
Keyword(s):  
Side Effects ◽  
Tuberous Sclerosis ◽  
Tuberous Sclerosis Complex ◽  
Mammalian Target Of Rapamycin ◽  
Target Of Rapamycin ◽  
Renal Angiomyolipoma ◽  
Cardiac Rhabdomyoma

AbstractWe report a case of a newborn, affected by tuberous sclerosis complex, with a prenatally diagnosed giant cardiac rhabdomyoma associated with a large renal angiomyolipoma presenting as a duct-depending lesion not treatable by surgery. After receiving everolimus, a mammalian target of rapamycin inhibitor, we observed a rapid, significant, and durable reduction of both lesions without remarkable side effects.

scholarly journals Huge Renal Angiomyolipoma in a Child with Tuberous Sclerosis Complex: A Diagnostic and Therapeutic Dilemma

2021 ◽  
Vol 5 (0-2) ◽  
pp. 26
Author(s):  
Sharifah NurDurrah Binti Syed Mudzhar ◽  
Mohd Yusran Othman
Keyword(s):  
Tuberous Sclerosis ◽  
Tuberous Sclerosis Complex ◽  
Left Kidney ◽  
Abdominal Distension ◽  
Bleeding Risk ◽  
Subependymal Giant Cell Astrocytoma ◽  
Renal Angiomyolipoma ◽  
Cardiac Rhabdomyoma ◽  
Contralateral Kidney ◽  
Life Threatening

Tuberous Sclerosis Complex (TSC) is a rare neuro-cutaneous disorder that is associated with the development of benign hamartomas including renal angiomyolipoma (RAML). TSC associated RAML are usually asymptomatic, but it carries a life-threatening bleeding risk. We are sharing a case of a 5-year-old girl who was diagnosed to have TSC with associated subependymal giant cell astrocytoma, cardiac rhabdomyoma and autism. She presented with a history of worsening abdominal distension over 3 weeks duration and clinically noted to be pale with a ballotable left flank mass. Ultrasound and CT scan found to have multiple RAML in both kidneys with a huge mass on the left side. The mass represented a huge RAML (8cm) with aneurysmal formation with suspicion of intratumoral bleeding. The option of conservative management with mammalian target of rapamycin inhibitor followed with partial nephrectomy has been questioned with its life-threatening risk of bleeding and inability to do biopsy to rule out the possibility of renal cell carcinoma. Decision for nephrectomy was then made clearer following a MAG-3 scan which revealed only 11% differential function of the left kidney. She underwent a total left nephrectomy uneventfully and intraoperatively noted to have an enlarging lesion as compared to the previous imaging; 15cm in largest diameter. Histopathological finding was consistent with multifocal angiomyolipoma with intratumoral haematoma. Decision for nephrectomy in TSC-associated RAML need to be justified carefully in view of its risk of losing the contralateral kidney following the disease progression which may end up with life-long renal replacement therapy.International Journal of Human and Health Sciences Supplementary Issue-2: 2021 Page: S26

scholarly journals Fetal cardiac rhabdomyoma as sonographic sign of tuberous sclerosis complex - a diagnosis not to be missed.

2021 ◽  
Author(s):  
Dan Boitor Borza ◽  
Roxana Popa Stanila ◽  
Gabriela Zaharie ◽  
Monica Hasmasanu ◽  
Daniel Muresan
Keyword(s):  
Prenatal Diagnosis ◽  
Key Words ◽  
Tuberous Sclerosis ◽  
Tuberous Sclerosis Complex ◽  
Neurological Outcome ◽  
Careful Consideration ◽  
Cardiac Rhabdomyoma ◽  
Poor Neurological Outcome ◽  
Sonographic Sign

Fetal cardiac rhabdomyoma should trigger the awareness of potential coexisting tuberous sclerosis complex that can lead to a poor neurological outcome. This condition is not only uncommon but can be easily unrecognized prenatally in the absence of a meticulous neurosonogram and MRI. We emphasize that careful consideration of all prenatal facilities is needed to confirm the diagnosis of tuberous sclerosis complex as early as possible during pregnancy. Key words: cardiac rhabdomyoma; tuberous sclerosis; prenatal diagnosis

Everolimus for cardiac rhabdomyomas in children with tuberous sclerosis. The ORACLE study protocol (everOlimus for caRdiac rhAbdomyomas in tuberous sCLErosis): a randomised, multicentre, placebo-controlled, double-blind phase II trial

2020 ◽  
Vol 30 (3) ◽  
pp. 337-345 ◽  
Author(s):  
Erica V. Stelmaszewski ◽  
Daniella B. Parente ◽  
Alberto Farina ◽  
Anna Stein ◽  
Anthony Gutierrez ◽  
...  
Keyword(s):  
Heart Failure ◽  
Tuberous Sclerosis ◽  
Phase Ii ◽  
Tuberous Sclerosis Complex ◽  
Genetic Disorder ◽  
Unmet Need ◽  
Renal Angiomyolipoma ◽  
Double Blind ◽  
Cardiac Rhabdomyoma ◽  
Positive Effects

AbstractIntroduction:Tuberous sclerosis complex is a rare genetic disorder leading to the growth of hamartomas in multiple organs, including cardiac rhabdomyomas. Children with symptomatic cardiac rhabdomyoma require frequent admissions to intensive care units, have major complications, namely, arrhythmias, cardiac outflow tract obstruction and heart failure, affecting the quality of life and taking on high healthcare cost. Currently, there is no standard pharmacological treatment for this condition, and the management includes a conservative approach and supportive care. Everolimus has shown positive effects on subependymal giant cell astrocytomas, renal angiomyolipoma and refractory seizures associated with tuberous sclerosis complex. However, evidence supporting efficacy in symptomatic cardiac rhabdomyoma is limited to case reports. The ORACLE trial is the first randomised clinical trial assessing the efficacy of everolimus as a specific therapy for symptomatic cardiac rhabdomyoma.Methods:ORACLE is a phase II, prospective, randomised, placebo-controlled, double-blind, multicentre protocol trial. A total of 40 children with symptomatic cardiac rhabdomyoma secondary to tuberous sclerosis complex will be randomised to receive oral everolimus or placebo for 3 months. The primary outcome is 50% or more reduction in the tumour size related to baseline. As secondary outcomes we include the presence of arrhythmias, pericardial effusion, intracardiac obstruction, adverse events, progression of tumour reduction and effect on heart failure.Conclusions:ORACLE protocol addresses a relevant unmet need in children with tuberous sclerosis complex and cardiac rhabdomyoma. The results of the trial will potentially support the first evidence-based therapy for this condition.

scholarly journals Imaging of tuberous sclerosis complex: a pictorial review

2017 ◽  
Vol 50 (1) ◽  
pp. 48-54 ◽  
Author(s):  
Felipe Mussi von Ranke ◽  
Igor Murad Faria ◽  
Gláucia Zanetti ◽  
Bruno Hochhegger ◽  
Arthur Soares Souza Jr. ◽  
...  
Keyword(s):  
Tuberous Sclerosis ◽  
Tuberous Sclerosis Complex ◽  
Phenotypic Variability ◽  
The Body ◽  
Malignant Neoplasms ◽  
Renal Angiomyolipoma ◽  
Presumptive Diagnosis ◽  
Cardiac Rhabdomyoma ◽  
Pictorial Review ◽  
Wide Range

Abstract Tuberous sclerosis complex (TSC) is a genetically determined hamartomatous neurocutaneous disease with high phenotypic variability. TSC is characterized by widespread hamartomas and benign, or rarely malignant, neoplasms distributed in several organs throughout the body, especially in the brain, skin, retina, kidney, heart, and lung. Common manifestations include cortical tubers, subependymal nodules, white matter abnormalities, retinal abnormalities, cardiac rhabdomyoma, lymphangioleiomyomatosis, renal angiomyolipoma, and skin lesions. The wide range of organs affected by the disease implies that TSC1 and TSC2 genes play important roles in the regulation of cell proliferation and differentiation. Although recent advances in treatment have improved morbidity, the prognosis remains quite poor and nearly 40% of patients die by the age of 35 years. Imaging is important in the evaluation of TSC because of its role not only in presumptive diagnosis, but also in defining the full extent of involvement. This information allows a better understanding of the behavioural phenotype, as related to lesion location. Imaging also contributes to treatment planning. This pictorial review describes common and uncommon imaging manifestations of TSC.

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