https://www.selleckchem.com/products/wz-811.html IgG4-related disease (IgG4-RD) is an immune-mediated inflammatory condition of unknown etiology characterized by invasion of tissue by IgG4-producing plasma cells. It can affect almost any organ system, but central nervous system involvement is a rare occurrence. A careful clinicopathological correlation is required to establish the diagnosis. The condition is highly treatable with glucocorticoids, but it is likely that it is underdiagnosed. Although IgG4-related disease responds quickly to glucocorticoids, if left untreated, can lead to end-stage organ failure and even death. We present a case of a 46-year-old female patient who presented with headache, tingling, numbness, flickering movement in her left lower limb gradually extending to torso and head, and loss of consciousness. After radiological and immunohistochemical studies, the diagnosis of IgG4-related hypertrophic pachymeningtis was confirmed. Corticosteroid therapy was administered, and the patient symptomatically improved. Clinicians should be aware of this rare condition, and the importance of early diagnosis and appropriate corticosteroid therapy should be emphasized.Neuroepithelial cysts are benign, congenital, ependymal-lined cysts that constitute an infrequent cause of neurological symptoms among intracranial cystic lesions. We present Indonesian patient who underwent brain MRI depicting neuroepithelial cysts and pathological examination confirmed. Surgery was performed and yielded a satisfying result. Awareness of the entity and specific imaging features is key to making the diagnosis of neuroepithelial cyst and commencing appropriate treatment. This report is expected to aid in the diagnosis of neuroepithelial cysts, which are rare, and reduce the occurrence of misdiagnosis.Pathology of the falciform ligament is extremely rare. We present a case of a 50-year-old man with a torsion of the fatty appendage of the falciform ligament. This is a self-limi