Psychogenic Nonepileptic Seizures (PNES) in the Setting of Trauma and Schizophrenia.

Psychogenic nonepileptic seizures (PNES) are nonepileptic events characterized by seizure-like manifestations without abnormal electrical activity in the brain. Our case report illustrates the diagnostic journey of a young female with a history of schizophrenia and childhood trauma who had an initial misdiagnosis of epilepsy. The etiology of PNES is complex. Major depressive disorder and generalized anxiety disorder are common comorbid conditions in these patients. Additionally, previous trauma has been linked as a predisposing factor for the development of PNES. Psychotic disorders, specifically schizophrenia, have only recently been associated with PNES. We explore this relationship in depth, while also underscoring the diagnostic and treatment challenges of PNES that clinicians must remain aware of.

Recurrence of a Rare Subtype of Guillain-Barré Syndrome Following a Second Dose of the Shingles Vaccine.

Guillain-Barré Syndrome (GBS) is an acute, immune-mediated polyneuropathy. The exact cause of GBS remains unknown, however, it commonly develops post-infection. Since the 1950s, various vaccines have been attributed to causing the syndrome, yet no definitive relationship has ever been determined. In 2021, the Food and Drug Administration (FDA) placed a black-box warning for Shingrix, a non-live recombinant vaccine against the varicella-zoster virus, regarding a possible risk of acquiring GBS post-vaccination in adults aged 65 and older. We report the recurrence of a rare subtype of GBS in a 61-year-old patient following the second dose of Shingrix. This case highlights the difficulty of diagnosing and treating recurrent GBS. It also raises awareness that Shingrix may be related to the development of GBS in younger patients. This case also emphasizes the importance of differentiating GBS from other polyneuropathies.

Chronic Atypical Depression as an Early Feature of Pituitary Adenoma: A Case Report and Literature Review.

Pituitary adenomas are often diagnosed as incidental findings on brain imaging. We present the case of a 52-year-old African American female patient with long standing depressed mood prior to the incidental finding of a pituitary adenoma. We explore the possibility of certain mood symptoms prompting an early diagnosis of pituitary adenoma.

On Neuropsychiatric Manifestations of Basal Ganglia Injury: A Report of Three Cases and Literature Review.

The basal ganglia have been considered to primarily play a role in motor processing. A growing body of theoretical and clinical evidence shows that in addition to the motor functions the basal ganglia play a key role in perceptual and visual disturbances. This role may be evident in patients with basal ganglia pathology and subsequent manifestation of symptoms that include cognitive, perceptual, and affective disturbances. We present three cases with basal ganglia pathology that demonstrate affective and psychotic symptoms. Two of the cases presented with late onset psychotic disturbances suggesting likely neurological etiologies. The third case presented with treatment refractory psychosis and symptoms that are rare for a diagnosis of schizophrenia. The role of incidental bilateral basal ganglia calcifications in all the cases is discussed. A review of current literature highlighting various neuropsychiatric manifestations of basal ganglia pathologies in various patients with psychiatric symptoms is presented.