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2,801 Possible Causes for Metastasis, Rarely Malignant

  • Pulmonary Blastoma

    Zareifar, Karimi, Tasbihi, Abdolkarimi, and Geramizadeh: Pleuropulmonary blastoma is a rare malignancy in young adult and childhood ABSTRACT Pleuropulmonary blastoma (PPB)[] We report a rare case of renal metastasis of biphasic pulmonary blastoma that responded to sorafenib, an oral multikinase inhibitor.[] The factors that indicate poor prognosis are tumor recurrence, metastasis at initial presentation, tumor size over 5 cm and lymph node metastasis.[]

  • Ameloblastic Carcinoma

    Case Report First Online: 03 October 2016 181 Downloads 1 Citations Abstract Ameloblastic carcinoma (AC) is a rare malignant odontogenic tumor with poor prognosis.[] We report a case of aggressive secondary AC of mandible with lung metastasis. There are few cases in medical literature discussing management of AC with lung metastasis.[] Ameloblastic carcinoma is a rare malignant odontogenic carcinoma that has metastatic potential, and because of its rare incidence, there are few reports focusing on its radiologic[]

  • Pleuropulmonary Blastoma

    Pleuropulmonary blastoma (PPB) is a rare malignant mesenchymal pediatric tumor with a well-recognized association with congenital cystic adenomatoid malformation (CCAM).[] This report presents a rare case of pleuropulmonary blastoma with cervical lymph node metastasis at the time of presentation.[] Pleuropulmonary blastoma (PPB) is a rare malignancy of childhood. It often represents a manifestation of a hereditary tumor predisposition syndrome (DICER1 syndrome).[]

  • Ameloblastic Fibrosarcoma

    Ameloblastic fibrosarcoma (AFS) is a rare malignant odontogenic tumor.[] Moreover, the review provided evidence that first treatment, regional metastasis, distant metastasis and local recurrence were significant prognostic values for malignant[] Ameloblastic fibrosarcoma is a rare malignant odontogenic tumour and is regarded as the malignant counterpart of the ameloblastic fibroma.[]

  • Pancreatoblastoma

    Most cases of pancreatoblastoma, a rare malignant epithelial tumor of the pancreas, are seen in the pediatric population.[] Such widespread metastasis is unusual given the small size of the primary tumor.[] Pancreatoblastoma is a rare malignant tumor of the pancreas mostly diagnosed in childhood.[]

  • Endometrial Stromal Sarcoma

    Endometrial stromal sarcoma (ESS) is a rare malignant neoplasm of the uterus.[] The pathologic diagnosis was pulmonary metastasis of the low-grade endometrial stromal sarcoma.[] Endometrial stromal sarcoma (ESS) is a rare malignant tumor of the uterus.[]

  • Struma Ovarii

    Most of the struma ovarii are benign; rarely can they undergo malignant transformation.[] Subsequent I-131 treatment resolved the pelvic metastasis.[] Malignant struma ovarii is a very rare malignant ovarian teratoma.[]

  • Leiomyosarcoma

    In conclusion, primary pancreatic leiomyosarcoma is a rare and highly malignant tumor associated with poor prognosis.[] Vaginal compromise in leiomyosarcoma usually results from tumor extension, not hematogenous metastasis. A vaginal metastasis is a very rare initial presentation.[] metastasis in Breast Cancer 2008 June;4(1) Surgical resection for pulmonary metastasis 2013 June;9(1)[]

  • Chondrosarcoma

    As an extremely rare malignant neoplasm, only 12 mesenchymal chondrosarcoma (MC) arising in kidney have been reported to date.[] Metastasis from intracranial chondrosarcoma is extremely rare with only two previously reported cases.[] Chondrosarcoma is a rare malignant tumor of bone.[]

  • Malignant Peripheral Nerve Sheath Tumor

    Malignant peripheral nerve sheath tumor is a rare malignancy, accounting for 3% to 10% of all soft-tissue sarcomas.[] We report, to our knowledge, the first case of leptomeningeal metastasis of a MPNST to the spine and intracranial space.[] MPNST is a rare malignancy, and due to the lack of specific histologic criteria, several differential diagnoses must be considered.[]

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