A Rare Multinuclear Lesion Secondary to Multifactorial Ischemic Stroke: A Case Report on Eight-and-a-Half Syndrome.

Internuclear ophthalmoparesis (INO) is a horizontal eye movement disorder that is associated with a lesion at the medial longitudinal fasciculus (MLF). One-and-a-half syndrome occurs when the lesion involves the MLF and the ipsilateral abducens nuclei or the paramedian pontine reticular formation (PPRF) in the dorsomedial tegmentum of the pons. When the lesion is large enough, the fascicles of the facial nerve (CNVII) can also be involved, resulting in an ipsilateral facial nerve palsy. In combination with one-and-a-half syndrome, this condition becomes eightand- a- half syndrome (EHS). Here, we describe a unique case of EHS in a 72-year-old male with multiple ischemic stroke risk factors who presented with INO, conjugate gaze palsy, ipsilateral facial palsy, and a transient contralateral hemiparesis. Recognizing this pattern of neurologic deficits improves localization of the lesion, prevents misdiagnosis of Bell's Palsy, and expedites proper treatment.

Pneumatosis Cystoides Intestinalis Identified on Screening Colonoscopy With Associated Pneumoperitoneum.

Pneumatosis cystoides intestinalis (PCI) is defined by the presence of gas within the bowel wall. It is often asymptomatic and usually benign but may be associated with significant morbidity and mortality. In this patient, PCI was found incidentally on screening colonoscopy, and biopsy of the affected mucosa resulted in deflation of a cyst. Pneumoperitoneum was then identified on subsequent CT. Because pneumoperitoneum is associated with bowel perforation in most cases, it is often treated as an indication for operation. This case of benign and asymptomatic pneumoperitoneum was managed conservatively without complications. Clinicians should be able to identify PCI as a potentially benign finding on colonoscopy as well as a potentially benign cause of pneumoperitoneum. This understanding presents an opportunity to avoid the unnecessary morbidity and costs associated with surgical exploration or additional endoscopic procedures.