Primary Gliosarcoma of the Cerebellum in a Young Pregnant Woman: Management Challenges and Immunohistochemical Features by Marco Meloni, Salvatore Serra, Giulia Bellisano, Nikolaos Syrmos, Sanjeeva Jeyaretna, Mario Ganau

“…GS should be considered in the differential diagnosis of posterior cranial fossa tumors with radiological features of meningioma or glioblastoma, even in young patients. To this regard, sarcomas, solitary fibrous tumors, and even metastases should be considered, especially in light of the tendency of GS to give rise to extracranial localizations. …”
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Prognostic significance of mast cell and microvascular densities in malignant peripheral nerve sheath tumor with and without neurofibromatosis type 1 by Roberto André Torres de Vasconcelos, Pedro Guimarães Coscarelli, Thyago Marsicano Vieira, Washington Silva Noguera, Davy Carlos Mendes Rapozo, Marcus André Acioly

“…Abstract Malignant peripheral nerve sheath tumors (MPNSTs) are rare and aggressive soft tissue sarcomas with a significant susceptibility to metastasize early in their course. …”
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Increased Early‐Mortality in Children With Solid Tumors During the COVID‐19 Pandemic in a Middle‐Income Country by Oscar Ramirez, Vivian Piedrahita, Santiago Bolivar, Karina Grillo, Adriana Linares, Carlos Pardo, Martha Piña, Amaranto Suarez, Carlos A. Portilla, Jesus Ardila, Viviana Lotero, Luz A. Urcuqui, Angela Trujillo, Patricia Montenegro, Luis E. Bravo, Paula Aristizabal, VIGICANCER Working Group

“…Six‐month mortality aHRs for retinoblastoma, bone tumors, and soft tissue sarcomas due to progressive disease were 4.3 (95% CI, 1.3–14.5), 4.0 (95% CI, 1.4–11.3), and 5.4 (95% CI, 2.2–13.5), respectively. …”
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Lipoleiomyoma of the uterus in a woman of reproductive age (clinical case) by V.V. Talash, Ya.V. Palyokha, A.M. Gromova, V.V. Talash, V.B. Martynenko, N.O. Prylutska, N.I. Mityunina

“…The problem of these tumors lies in their unpredictable histogenesis, the unexpected presence of fat in the microscopic structure, and in the visual similarity to sarcomas. Verification of the diagnosis is carried out on the basis of pathohistological and immunohistochemical studies of the tumor preparation. …”
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