Cutaneous Angiosarcoma With Scalp and Skull Infiltration: A Comprehensive Case Report and Treatment Considerations.

Cutaneous angiosarcoma is a rare and aggressive malignancy originating from endothelial cells lining blood vessels in the skin. The authors present a comprehensive case report of cutaneous angiosarcoma with infiltration of the scalp and skull, with an abnormal presentation highlighting the clinical features, diagnostic challenges, treatment and surgical strategies, and outcomes. The case underscores the complexity of managing this aggressive disease involving critical anatomical structures and emphasizes the need for a multidisciplinary approach to optimal patient care.

SOMATIC DEFICIENT MISMATCH REPAIR ASSESSED BY IMMUNOHISTOCHEMISTRY AND CLINICAL FEATURES IN BRAZILIAN GLIOBLASTOMA PATIENTS.

Background: Glioblastoma (GBM) is the most frequent primary malignant CNS tumor. Deficient mismatch repair (dMMR) is associated with better prognosis and is a biomarker for immunotherapy. Evaluation of MMR by immunohistochemistry (IHC) is accessible, cost effective, sensitive, and specific.

A novel program of infiltrative control in astrocytomas: ADAM23 depletion promotes cell invasion by activating -secretase complex.

Background: Infiltration is a life-threatening growth pattern in malignant astrocytomas and a significant cause of therapy resistance. It results in the tumor cell spreading deeply into the surrounding brain tissue, fostering tumor recurrence and making complete surgical resection impossible. We need to thoroughly understand the mechanisms underlying diffuse infiltration to develop effective therapies.

Supratentorial Lymphocytic Inflammation with Parenchymal Perivascular Enhancement Responsive to Steroids (SLIPPERS)-Does it Really Exist?

Supratentorial Lymphocytic Inflammation with Parenchymal Perivascular Enhancement Responsive to Steroids (SLIPPERS) is a rare variant of the CLIPPERS spectrum with less than ten reports published so far. There is ongoing discussion regarding whether SLIPPERS is a disease entity on its own or just an acronym encompassing many underlying diagnoses, such as sarcoidosis, vasculitis and anti-glial fibrillary acidic protein (GFAP)-associated disease. A 40-year-old woman presented with episodes of language and attention impairment.