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Gehle S, Quinsey C, McShane D, Thompson P, Quezada G. Infantile Myofibromatosis With Cutaneous, Visceral, and CNS Involvement: A Multimodal Approach to Therapy. J Pediatr Hematol Oncol 2023; 45:e921-e923. [PMID: 37526359 DOI: 10.1097/mph.0000000000002717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 06/08/2023] [Indexed: 08/02/2023]
Abstract
BACKGROUND Infantile myofibromatosis (IM) is a rare benign tumor of infancy. Cases with solitary and multicentric disease usually spontaneously regress, but multicentric disease with visceral involvement carries a poor prognosis. Few cases of multicentric disease with central nervous system (CNS) involvement have been reported, and none report survival. OBSERVATIONS We present a newborn with multicentric IM with cutaneous, visceral, and CNS involvement. She was treated with vinblastine, methotrexate, and the novel addition of intrathecal methotrexate with treatment response after 1 year of therapy. CONCLUSIONS Multicentric IM with CNS involvement can be successfully treated with a multimodal approach of chemotherapy with the addition of intrathecal methotrexate and surgery.
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Affiliation(s)
| | | | - Diana McShane
- Dermatology, School of Medicine, University of North Carolina, Chapel Hill, NC
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Schubert JP, Wößmann W, Königs I, Clauditz T, Kordes U, Reinshagen K. Generalized Infantile Myofibromatosis with Extensive Small Bowel Involvement in a Neonate. Z Geburtshilfe Neonatol 2023. [PMID: 36921614 DOI: 10.1055/a-2018-5454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
Infantile myofibromatosis is a rare benign congenital tumour that often regresses spontaneously but may pose therapeutic challenges in its widespread visceral form. We present the case of a full-term neonate with generalized infantile myofibromatosis including ubiquitous subcutaneous and muscular nodules, a tumour in the mastoid and disseminated intestinal involvement. The intestinal tumours led to a mechanical ileus with intestinal perforation within the first days of life. After partial small bowel resection and necessary proximal jejunostomy the boy was dependent on total parenteral nutrition. Chemotherapy with vinblastine and methotrexate was started and was temporarily supplemented with imatinib. Feeding stayed impossible despite tumour shrinkage. At the age of 4.5 months, restoration of intestinal continuity with further stricturoplasties was performed which - for the first time - allowed complete oral feeding. Chemotherapy was continued for further two months. Currently, the child is in good general condition with growth and further disease regression. This report suggests that massive visceral involvement of infantile myofibromatosis may require extensive intestinal surgery, as conservative therapy cannot resolve the disease and its sequelae.
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Affiliation(s)
| | - Wilhelm Wößmann
- Pediatric Haematology and Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ingo Königs
- Pediatric Surgery, AKK Altonaer Kinderkrankenhaus gGmbH, Hamburg, Germany
| | - Till Clauditz
- Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Uwe Kordes
- Pediatric Haematology and Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Konrad Reinshagen
- Pediatric Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Bidadi B, Watson A, Weigel B, Oliveira A, Kirkham J, Arndt C. Treatment of generalized infantile myofibromatosis with sorafenib and imatinib: A case report. Pediatr Blood Cancer 2020; 67:e28288. [PMID: 32307894 DOI: 10.1002/pbc.28288] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 03/03/2020] [Accepted: 03/04/2020] [Indexed: 01/24/2023]
Abstract
Infantile myofibromatosis (IM) is characterized by solitary musculoskeletal nodules presenting during infancy but can manifest as multiple lesions with visceral involvement. Multicentric IM with visceral involvement carries a high risk of mortality and there is no consensus on treatment. We present a case of a patient with multicentric IM and pulmonary involvement who progressed on several chemotherapeutic regimens and subsequently had a complete response to sorafenib and later imatinib. This report describes the novel use of sorafenib and imatinib to treat generalized IM and the role of continued tyrosine kinase inhibitor therapy to maintain remission.
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Affiliation(s)
- Behzad Bidadi
- Merck Pharmaceuticals, North Wales, Pennsylvania.,Division of Pediatric Hematology/Oncology, Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, Minnesota
| | - Andrea Watson
- Division of Pediatric Hematology/Oncology, Department of Oncology, Essentia Health Duluth Clinic, Duluth, Minnesota
| | - Brenda Weigel
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota
| | - Andre Oliveira
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Justin Kirkham
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, Minnesota
| | - Carola Arndt
- Division of Pediatric Hematology/Oncology, Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, Minnesota
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McCammon J, Stefanovici C, Martin RK, Larouche P. Multiple Bone Lesions in an 8-Month-Old Child Presenting with Pathologic Fracture: A Rare Case of Solely Osseous Multicentric Infantile Myofibromatosis. JBJS Case Connect 2016; 6:e42. [PMID: 29252675 DOI: 10.2106/jbjs.cc.15.00221] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
CASE An otherwise healthy 8-month-old boy presented with a pathologic fracture of the distal aspect of the radius. Further work-up demonstrated widespread osseous lesions of the axial and the appendicular skeleton with no soft-tissue or visceral involvement. CONCLUSION Infantile myofibromatosis has a spectrum of severity that demands a careful and complete work-up. In rare cases such as the present one, it can manifest as multiple osseous lesions. The patient in the present case was managed conservatively, with no morbidity demonstrated at 1 year of follow-up.
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Affiliation(s)
- J McCammon
- Departments of Orthopedic Surgery (J.M., R.K.M., and P.L.) and Pathology (C.S.), Health Sciences Center, University of Manitoba, Winnipeg, Manitoba, Canada
| | - C Stefanovici
- Diagnostic Services of Manitoba, Winnipeg, Manitoba, Canafa
| | - R K Martin
- Departments of Orthopedic Surgery (J.M., R.K.M., and P.L.) and Pathology (C.S.), Health Sciences Center, University of Manitoba, Winnipeg, Manitoba, Canada
| | - P Larouche
- Departments of Orthopedic Surgery (J.M., R.K.M., and P.L.) and Pathology (C.S.), Health Sciences Center, University of Manitoba, Winnipeg, Manitoba, Canada
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Abstract
Infantile myofibromatosis (IM) is most commonly limited to cutaneous lesions that resolve spontaneously. However, generalized IM with visceral involvement, which has a reported mortality rate as high as 73%, has been successfully treated with a combination of methotrexate and vinblastine. Here we report the further efficacy of low-dose methotrexate and vinblastine in 2 pediatric patients with IM and visceral involvement and review the literature describing chemotherapy for these patients.
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Abstract
Although solitary presentations of infantile myofibromatosis tend toward spontaneous regression, multicentric forms fare worse. Previous case reports have depicted observation, surgical resection, and systemic therapies as treatment options. This paper reports well-tolerated, successful outcomes in a series of patients with high-risk infantile myofibromatosis in need of life-sustaining interventions treated with a combination of vincristine and dactinomycin. The clinical presentation, pathology, and radiographic findings are described.
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Melikoglu C, Keklik B, Sutcu M, Can N, Aydin A. Infantile myofibroma: A differential diagnosis of hand tumors during the neonatal period. JOURNAL OF PEDIATRIC SURGERY CASE REPORTS 2014. [DOI: 10.1016/j.epsc.2014.03.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Levine E, Fréneaux P, Schleiermacher G, Brisse H, Pannier S, Teissier N, Mesples B, Orbach D. Risk-adapted therapy for infantile myofibromatosis in children. Pediatr Blood Cancer 2012; 59:115-20. [PMID: 22038698 DOI: 10.1002/pbc.23387] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Accepted: 09/13/2011] [Indexed: 12/18/2022]
Abstract
BACKGROUND Infantile myofibromatosis is characterized by proliferation of benign fibrous tumors arising in skin, subcutaneous tissue, muscle, or bone. Solitary and multicentric forms are described. Few reports are available in the pediatric population. PROCEDURE To improve the knowledge of this rare tumor in infants, the authors present a series of all cases of infantile myofibromatosis treated in their institution over a 9-year period in order to propose treatment guidelines based on their experience and a review of the literature. RESULTS The authors report a series of 9 cases, 8 solitary forms and 1 multicentric form with visceral involvement treated from 2000 to 2009. Median age was 10 months (range: 2 days-14 years). Six patients with solitary forms underwent primary surgical resection leading to remission. Only biopsy was performed in 1 case, followed by tumor regression with no recurrence. The last patient with a solitary form was treated by chemotherapy and then surgery allowing remission. The patient with a multicentric form presented complete regression of tumors after 1 year of vinblastine and methotrexate combination chemotherapy. CONCLUSIONS Infantile myofibromatosis is a rare soft tissue tumor mainly concerning infants. Surgery is the treatment of choice for solitary forms when excision is possible. Close follow-up may be proposed in the case of inoperable sites. In multicentric life-threatening forms, chemotherapy promotes tumor regression and the vinblastine and methotrexate combination is effective with few long-term adverse effects.
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Acıoğlu E, Acar GO, Alimoğlu Y, Cansız H, Dervişoğlu S. Myofibroma of the zygomatic bone in an older child: a case report. EAR, NOSE & THROAT JOURNAL 2012; 90:E1-4. [PMID: 21792782 DOI: 10.1177/014556131109000711] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Myofibroma/myofibromatosis is a rare mesenchymal disorder that is part of a heterogeneous group of approximately 20 disorders that are classified primarily according to the proliferation of benign fibrous elements. These lesions can arise during a wide range of ages, with many occurring in the first decade of life, and they are slightly more common in males than females. The etiology of this disease is not well understood. Clinically, patients with myofibroma/myofibromatosis present with various signs, ranging from superficial, cutaneous, purplish macules to freely movable subcutaneous masses to deep-seated fixed lesions. The definitive diagnosis is made on histopathologic grounds. The destructive clinical behavior of myofibroma/myofibromatosis in the setting of insufficient pre- or perioperative diagnostic evaluations (e.g., a failure to perform fine-needle aspiration or frozen-section biopsy) may guide the clinician toward a radical surgical procedure rather than a simple excision.
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Affiliation(s)
- Engin Acıoğlu
- Department of Otolaryngology, İstanbul Training and Research Hospital, Ornek Mah. Libadiye Cad. Tahralı Sitesi, B1 Blok. Kat:6 D:27 Üsküdar, İstanbul, Turkey.
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Miwa T, Oi S, Nonaka Y, Tamogami R, Sasaki H, Akiyama M, Yuza Y, Yokoi K, Yokokawa Y, Ida H. Rapid spontaneous regression of multicentric infantile myofibromatosis in the posterior fossa and lumbar vertebra. Childs Nerv Syst 2011; 27:491-6. [PMID: 20949273 DOI: 10.1007/s00381-010-1306-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2010] [Accepted: 10/04/2010] [Indexed: 10/19/2022]
Affiliation(s)
- Tomoru Miwa
- Division of Pediatric Neurosurgery, Jikei University School of Medicine and University Hospital, Women's and Children's Medical Center, 3-25-8, Nishi-Shinbashi, 105-8461 Tokyo, Japan.
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Abstract
Infantile myofibromatosis is a rare benign tumor-disease (1/400,000). Four different types have been reported in literature. The most commonly affected body areas are the head, the neck, and the trunk. We would like to present a rare case of a multicentric type with singular visceral involvement and a literature review of all case series with more than five patients. A 9-month-old boy presented with a swelling on the medial side of his proximal left tibia. The lesion which was present since birth, was well palpable, indolent, hard, and mobile in relation to the surrounding tissue. Radiographic films and ultrasound examination presented a pretibial soft-tissue tumor mass with calcifications and two osteolytic lesions with a sclerotic rim. A skeletal survey showed more osteolytic lesions, but the magnetic resonance imaging showed no more soft-tissue lesions. The rapid frozen section biopsy hinted at the diagnosis of histiocytosis X. The definitive histological result 6 days later was infantile myofibromatosis. As therapy, we determined a wait-and-see policy with controls all 3 months. At 20 months follow-up, the boy showed beginning of regression of all lesions. Infantile myofibromatosis is a very rare benign tumor-disease. Radiologically often soft-tissue masses with calcifications and osteolytic lesions with sclerotic rims are described. These findings also can be interpreted as histiocytosis X, which is a potential differential diagnosis. Histopathologically, cells characteristically appear as spindle-shaped fibroblast cells with pale pink cytoplasm and elongated nuclei and the immunophenotype is defined with a positive reaction on smooth-muscle antigen vimentin and the muscle-specific antigen HHF-35. The data of the literature review underline that a wait-and-see-policy should be considered as the first treatment of choice as in most instances the bony lesions regress spontaneously. However, a thorough examination has to be carried out to exclude lesion in other organs like gastro-intestinal or cardio-pulmonary nodular tumor masses. In conclusion, the present case report and the literature review support the notion that infantile myofibromatosis should be considered as a possible differential diagnosis for soft tissue expansions and/or osteolytic lesions in a newborn.
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Minard-Colin V, Orbach D, Martelli H, Bodemer C, Oberlin O. [Soft tissue tumors in neonates]. Arch Pediatr 2009; 16:1039-48. [PMID: 19398311 DOI: 10.1016/j.arcped.2009.03.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2007] [Revised: 11/20/2008] [Accepted: 03/08/2009] [Indexed: 10/20/2022]
Abstract
Soft tissue tumors account for approximately 25% of neonatal tumors and are most often benign (more than 2/3 of cases). Vascular tumors are the most frequent benign tumors and infantile hemangioma accounts for 32% of these tumors, affecting 1 out of 200 children at birth. Kaposiform hemangioendothelioma (KH) is a rare vascular tumor with locally aggressive behavior. More than 50% of KH are associated with the Kasabach-Merritt phenomenon, a condition characterized by thrombocytopenia and consumptive coagulopathy. Malignant soft tissue tumors are, after neuroblastoma, the second cause of cancer in neonates. Infantile fibrosarcoma (IF) is a rare tumor that most often affects the extremities of children aged 4 years or younger. A recurrent t(12;15) (p13;q25) rearrangement fusing the ETV6 gene with the NTRK3 neurotrophin-3 receptor gene has been identified in IF. Complete conservative surgical resection is usually curative. Chemotherapy is indicated when initial surgical removal cannot be accomplished without unacceptable morbidity. Prognosis of IF is excellent, with reported overall survival rates ranging from 80 to 100%. Neonatal rhabdomyosarcoma (RMS) is a rare tumor (0.5-1% of RMS). The primary tumor predominantly involves the limbs and the genitourinary tract. Treatment is based on age-adapted chemotherapy and surgery. Prognosis of RMS in children less than 1 year old appears to be comparable with that of older children.
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Affiliation(s)
- V Minard-Colin
- Département de pédiatrie, institut Gustave-Roussy, 39, rue Camille-Desmoulins, 94805 Villejuif cedex, France
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Vered M, Allon I, Buchner A, Dayan D. Clinico-pathologic correlations of myofibroblastic tumors of the oral cavity. II. Myofibroma and myofibromatosis of the oral soft tissues. J Oral Pathol Med 2007; 36:304-14. [PMID: 17448141 DOI: 10.1111/j.1600-0714.2007.00528.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Myofibroma is a solitary benign tumor of myofibroblasts. Myofibromatosis describes multiple, simultaneous myofibromas at different sites in various organs. The clinico-pathologic correlations of myofibroma/myofibromatosis confined only to oral soft tissues were analyzed. METHODS In the English language literature, 41 myofibroma and 12 myofibromatosis cases involving the oral soft tissues were found. From our files, three new myofibroma cases were added. RESULTS Age at time of diagnosis of oral mucosa myofibroma ranged from birth to 70 years (mean 21.7 years), considerably higher than myofibroma in other parts of the body. Lesions occurred during the first decade (44%) and in the first year of life (17%). Male:female ratio was 1:1.6, contrary to the male predominance in other parts of the body. Common sites were the tongue (32%) and buccal mucosa (18%). Treatment was local excision, either complete (n = 13) or partial (n = 3), wide excision (n = 4), surgery, and chemotherapy (n = 1). Myofibromatosis involving oral soft tissues was diagnosed at birth in nine (75%) patients, within the first year in two, and as a young adult in one. Male:female ratio was 2:1. The tongue was the most common site (50%). Half the patients died of disseminated disease within a few days from birth, three were cured by partial or complete excision, and three experienced spontaneous regression. Histologically, oral mucosa myofibroma/myofibromatosis appearance agreed with findings in the literature. CONCLUSIONS Myofibroma should be included in the clinical differential diagnosis of masses of the oral soft tissues, especially in the tongue and buccal mucosa of children and adolescents. Histological differential diagnosis includes benign and malignant spindle-shaped lesions. Treatment of choice is local excision.
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Affiliation(s)
- Marilena Vered
- Department of Oral Pathology and Oral Medicine, School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel
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Rossbach C, Tannapfel A, Troebs RB, Hirsch W, Koerholz D. Successful treatment of relapsed multifocal nonvisceral infantile myofibromatosis. Pediatr Hematol Oncol 2005; 22:695-8. [PMID: 16251175 DOI: 10.1080/08880010500278780] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Infantile myofibromatosis is a very rare tumor in childhood and infancy. The authors report on a 4-year-old boy who presented with two relapses of initially multifocal infantile myofibromatosis without visceral involvement. The lesions of the skull and the abdomen were excised while osteolytic lesions of the limbs were not treated. Chemotherapy or radiation have not been applicated. Three years after initial diagnosis there is no evidence for persistence or recurrence of the tumor.
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Affiliation(s)
- Carolin Rossbach
- Medical Center, Martin-Luther-University of Halle/Wittenberg, Clinic and Policlinic for Children and Adolescents, Halle/Saale, Germany.
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Franzese CB, Carron J. Infantile myofibromatosis: unusual diagnosis in an older child. Int J Pediatr Otorhinolaryngol 2005; 69:865-8. [PMID: 15885344 DOI: 10.1016/j.ijporl.2005.01.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2004] [Revised: 12/21/2004] [Accepted: 01/06/2005] [Indexed: 11/18/2022]
Abstract
This manuscript describes the unusual presentation of infantile myofibromatosis (IM) in an older child with its diagnosis and management. An 8-year-old girl presented with a painless, rapidly expanding malar mass. CT demonstrated an erosive soft tissue lesion and needle biopsy was nondiagnostic. Complete excision returned the pathologic diagnosis of IM. The patient had no complications and no evidence of recurrence at 1 year. Almost 90% of IM cases present by age two and IM in older children is highly unusual. The solitary form of IM is most common and its treatment is complete excision with an excellent prognosis.
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Affiliation(s)
- Christine B Franzese
- Department of Otolaryngology and Communicative Sciences, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS 39110, USA.
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Wehl G, Rossler J, Otten JE, Boehm N, Uhl M, Kontny U, Niemeyer C. Response of progressive fibromatosis to therapy with liposomal doxorubicin. Oncol Res Treat 2005; 27:552-6. [PMID: 15591714 DOI: 10.1159/000081337] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
BACKGROUND Patients with fibromatosis not amenable to surgery may suffer from high morbidity. Various chemotherapeutic regimens have been tried in these patients with limited success. Here, we report on the successful use of pegylated liposomal doxorubicin in the treatment of 4 patients with unresectable fibromatosis in unfavorable localizations. PATIENTS AND METHODS 3 children and 1 adult with progressive fibromatosis were treated with 3-weekly cycles of chemotherapy with liposomal doxorubicin (dose range 20-50 mg/m2 per day every 21 days). Tumors were located at the nasal cavity, fossa infratemporalis, oral cavity, abdomen, and fossa supraclavicularis and were unresectable. 3 of the 4 patients had been heavily pretreated with various chemotherapeutic agents. Objective tumor response was monitored by magnetic resonance imaging and possible cardiotoxicity by echocardiography at regular intervals. RESULTS A tumor response was obtained in all 4 patients. All patients showed normal cardiac function after completion of chemotherapy as evaluated by left ventricular shortening fraction. Severe neutropenia was not observed. CONCLUSION Pegylated liposomal doxorubicin is a therapeutic option in patients with progressive unresectable fibromatosis in unfavorable localizations.
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Affiliation(s)
- G Wehl
- Division of Pediatric Hematology/Oncology, Department of Pediatrics and Adolescent Medicine, University of Freiburg, Germany
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Tamburrini G, Gessi M, Colosimo C, Lauriola L, Giangaspero F, Di Rocco C. Infantile myofibromatosis of the central nervous system. Childs Nerv Syst 2003; 19:650-4. [PMID: 12720031 DOI: 10.1007/s00381-003-0744-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2003] [Indexed: 11/27/2022]
Abstract
BACKGROUND Infantile myofibromatosis is the most common fibrous disorder of infancy and childhood. It may occur in two distinct forms: multicentric and solitary. In both cases involvement of the central nervous system (CNS) is unusual: brain myofibromas are usually intracranial in proximity of the dura mater, with infiltration of the calvarial bones and secondary brain compression. Spine myofibromas are exceptional and most of the cases reported in the literature represent secondary locations of visceral lesions. The natural history of myofibromas of the CNS in infantile myofibromatosis is characterized by a period of rapid growth, subsequent stabilization, and spontaneous regression in many cases. On these grounds surgical treatment is reserved for lesions that compress the brain or spinal cord and show an obvious progression. Small lesions or tumor residuals in asymptomatic children without visceral involvement should be closely observed as first choice. CASE REPORT We report the case of a 10-month-old child with a solitary intramedullary myofibroma, extended from C7 to the conus. The patient underwent partial surgical removal of this lesion. Control MRI has shown the spontaneous slow reduction of the tumor residual and a progressive improvement of preoperative neurological conditions has been observed. To our knowledge this is the first case in which a solitary myofibroma was localized within the spinal cord.
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Affiliation(s)
- G Tamburrini
- Pediatric Neurosurgical Unit, Catholic University Medical School, Largo A. Gemelli, 8, 00168 Rome, Italy.
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