Myositis associated with pembrolizumab presenting with myastheniform symptoms: two case reports.

Immune checkpoint inhibitors (ICIs), such as pembrolizumab, have revolutionized cancer treatment by enhancing the immune system's response to malignancies. However, these therapies are associated with immune-related adverse events (irAEs), including neuromuscular complications such as myasthenia gravis, myositis, and myocarditis. We describe two male patients, aged 67 and 68, with small cell and non-small cell lung cancers, who developed progressive neuromuscular symptoms, including ptosis, diplopia, and generalized weakness, after receiving pembrolizumab.

Depressor Labii Inferioris Muscle Palsy After Chin Augmentation.

The depressor labii inferioris (DLI) muscle helps to lower and turn the lower lip outward and receives innervation from the marginal mandibular branch of the facial nerve. Paralysis of this muscle is a rare but potential complication of chin augmentation injections. Paralysis of the DLI causes symptoms such as difficulty smiling on the affected side, difficulty speaking clearly, and facial asymmetry, especially when smiling.

Sural-to-medial femoral cutaneous amplitude ratio in early diagnosis of uremic neuropathy.

Introduction: Medial femoral cutaneous (MFC) sensory nerve action potentials (SNAPs) can be easily recorded using distal stimulation. This study aimed to identify a new parameter using MFC SNAPs for the early electrophysiological diagnosis of length-dependent axonal polyneuropathy (LDAP) associated with uremic neuropathy.

Methods: Patients with chronic renal failure who were referred to the electrodiagnostic laboratory due to symptoms suggesting polyneuropathy were included.

Dropping Objects in Carpal Tunnel Syndrome: Clinical and Electrophysiological Features.

Background Dysfunction in both afferent sensory and efferent motor components of the median nerve may contribute to the manifestation of the symptom of dropping objects (DO) in carpal tunnel syndrome (CTS). The objective of this study was to compare the clinical and electrophysiological characteristics of CTS patients with dropping objects (wDO) and those without dropping objects (w/oDO). The study evaluated the correlation between DO symptoms and median partial conduction block, as well as the reduction in median motor conduction velocity at the wrist.