Cerebellar cavernoma excision with a preserved venous anomaly: A case report in girl 28-year-old.

INTRODUCTION AND IMPORTANCE: Cavernous malformations are congenital or acquired vascular abnormalities. They are uncommon entities with an incidence of 0.5 % of the general population and usually are unnoticed until a hemorrhagic event occurs. Cerebellar cavernomas (CCMs) account for 1.2 to 11.8 % of all intracranial cases and 9.3 to 52.9 % of all infratentorial cases. Cavernomas can be concurrently seen with developmental venous anomalies (DVAs) in 20 % (range 20 %-40 %) of cases, in which case they are known as mixed vascular malformations. PRESENTATION OF CASE: We report a case of a healthy young adult who presented with acute onset of headache, with characteristics of chronic headache that gets progressively worse. The patient complains of frequent dizziness when sitting and standing for a long time. Complaints have been felt for two years and have worsened for the past two weeks. Additional complaints are dizziness and nausea with intermittent episodes of vomiting for four days. Magnetic resonance imaging (MRI) revealed an underlying cavernoma that had bled and a coexisting DVA. The patient was discharged home with no deficits. Outpatient follow-up two months later showed no symptoms or neurologic deficits. CLINICAL DISCUSSION: Cavernous malformations are congenital or acquired vascular anomalies that occur in approximately 0.5 % of the general population. Our patient likely had dizziness due to localization of the bleeding of the cavernoma on the left side of the cerebellum. In our patient, brain imaging revealed numerous abnormal blood vessels radiating from the cerebellar lesion, a highly suggestive of DVAs associated with cavernoma. CONCLUSION: A cavernous malformation is an uncommon entity that might coexist with deep venous anomalies, making management more challenging.

The roles of microRNAs on tuberculosis infection: meaning or myth?

The central proteins for protection against tuberculosis are attributed to interferon-γ, tumor necrosis factor-α, interleukin (IL)-6 and IL-1ß, while IL-10 primarily suppresses anti-mycobacterial responses. Several studies found alteration of expression profile of genes involved in anti-mycobacterial responses in macrophages and natural killer (NK) cells from active and latent tuberculosis and from tuberculosis and healthy controls. This alteration of cellular composition might be regulated by microRNAs (miRNAs). Albeit only 1% of the genomic transcripts in mammalian cells encode miRNA, they are predicted to control the activity of more than 60% of all protein-coding genes and they have a huge influence in pathogenesis theory, diagnosis and treatment approach to some diseases. Several miRNAs have been found to regulate T cell differentiation and function and have critical role in regulating the innate function of macrophages, dendritic cells and NK cells. Here, we have reviewed the role of miRNAs implicated in tuberculosis infection, especially related to their new roles in the molecular pathology of tuberculosis immunology and as new targets for future tuberculosis diagnostics.