Anti-Yo antibody-associated Autoimmune Encephalitis due to Breast Adenocarcinoma in a male patient.

Paraneoplastic neurological syndromes occur due to immune-mediated neuronal dysfunction secondary to systemic malignancy, and symptoms can usually be seen before malignancy. There are many subtypes that depend on the antibodies present or the proteins they target. Accurate epidemiological data are lacking as it is difficult to diagnose. We would like to present a case of anti-Yo antibody-associated encephalitis due to breast cancer in a 47-year-old male patient. When we searched the literature, we did not find a case of anti-Yo-associated autoimmune encephalitis due to breast adenocarcinoma in a male patient. For this reason, we find it worth presenting our case.

Ross syndrome with chronic cough and RF positivity: a case report.

Ross syndrome is a rare disorder of unknown etiology, characterized by the triad of segmental anhidrosis, tonic pupil, and areflexia/hyporeflexia. Ross syndrome is thought to be a limited and selective ganglioneuropathy. Its etiology has not been fully elucidated. Autonomic findings may also accompany. We wanted to present our 25-year-old patient who was diagnosed with Ross syndrome and presented with complaints of inability to sweat, heat intolerance, headache, diarrhea and chronic cough. Keyword: cough, tonic pupil, anhidrosis, compensatory.

Myositis developing after Covid-19 mRNA vaccine: Case Report.

Vaccine-related side effects are common. Usually, pain, edema, redness and tenderness may be seen at the injection site. Symptoms such as fever, fatigue, myalgia may occur. The coronavirus 2019 disease (Covid-19) has affected many people around the world. Although the vaccines that have been used play an active role in the fight against the pandemic, adverse events still continue to be reported. We present a 21-year-old patient who was diagnosed as having myositis after receiving covid vaccine with complaints of pain in her left arm two days after the 2nd dose of BNT162b2 mRNA Covid-19 vaccine, followed by inability to stand up from sitting and squatting and difficulty in going up and down stairs. Keywords: vaccine, myositis, creatine kinase, IVIG.

Antiphospholipid antibody positive Sneddon syndrome: a case report.

Sneddon syndrome may present with neurological findings such as transient ischemic stroke, strokes, seizures and/or headaches. However, a purplish, spider web-like skin finding called livedo reticularis may accompany the skin and precede neurological findings. Sneddon syndrome often affects women. Since it is vasculopathy affecting small and medium vessels, other organ findings may accompany. We present a 44-year-old Sneddon syndrome patient with monoparesis in her left lower extremity, livedo reticularis on her back and legs, and hypertension.

Localised scleroderma and ischemic stroke: case report.

Purpose: Scleroderma is a multisystemic disorder characterised by inflammatory and vascular anomalies, and excess fibrosis. Progressive systemic sclerosis (PSS) mainly progresses with skin, joint, lung, heart, and kidney involvement. Involvement of cerebral vessels is rare in both localised scleroderma and PSS. Transient ischemic attack and stroke are rare complications of scleroderma. Case description: We present a 60-year-old stroke patient with localised scleroderma presenting with impaired speech, forgetting words, and occasional temporary memory loss. Comment: In the case we present, no pathology was found in the clinical and laboratory tests performed in terms of ischemic risk factors. Skin findings included contracture, skin biopsy results, and antibody positivity related to scleroderma. Given the current pathogenesis of scleroderma, the patient was suspected of having a stroke.

Tumefactive multiple sclerosis.

Tumefactive multiple sclerosis (MS) is a subtype of atypical and rare MS that presents with tumor-like lesions in the central nervous system. The lesions may demonstrate a mass effect, edema, with ring enhancement. They can be mistaken for brain tumors or brain abscesses radiologically and clinically. Here we describe an instructive case of a 55-year-old woman with tumefactive MS who presented with occasional numbness in her right arm and leg, headache, thought confusion, and blurred vision for 2 years.

Recurrent idiopathic hypertrophic pachymeningitis with chronic headache and cranial nerve involvement.

Idiopathic hypertrophic pachymeningitis is a rare, fibrosing inflammatory disease that causes localized or diffuse thickening of the dura mater in the brain and/or spinal cord. It may be cranial, spinal, and/or craniospinal pachymeningitis depending on the place of involvement. In our case, a 34-year-old woman presented with sixth cranial nerve involvement and headache and was diagnosed with idiopathic hypertrophic pachymeningitis as a result of the exclusion of other causes and central nervous system imaging. Clinical and radiological follow-up occurred for 1 year, and treatment is presented.

Morgagni-Stewart-Morel syndrome presenting with neurological symptoms: a case report.

Morgagni-Stewart-Morel (MSM) syndrome is characterized by the thickening of the frontal bone of the skull (hyperostosis frontalis interna) obesity, neurological symptoms, and hypertrichosis. We present the case of a 76-year-old patient who complained of confusion, extreme irritability, and headache and was diagnosed with MSM based on examination, imaging, and test results.

Cervical myelitis due to herpes zoster: case report.

Purpose: Varicella-zoster virus (VZV) belongs to the human neurotropic alpha-herpes virus group. VZV reactivation can lead to neurological complications, including transverse myelitis. However, transverse myelitis caused by VZV reactivation is rare in immunocompetent patients. A case of transverse myelitis caused by VZV in an immunocompromised patient is presented in this paper. Case description: A 64-year-old female patient was admitted to our outpatient clinic with complaints of pain, numbness and loss of strength in her right arm, and decreased sensation of warmth, after suffering from zona zoster infection two weeks before. At that time the patient had shingles in the area covering the C4-T1 dermatomes on her right side and was treated with acyclovir. Comment: Consequently, patients presenting with similar symptoms after shingles should undergo appropriate imaging and tests, and treatment should be given for shingles-related transverse myelitis.

ANTI-NMDA-R encephalitis: case report.

Purpose: Anti-N-methyl-D-aspartate receptor encephalitis (NMDA-R) is the most common among autoimmune encephalitis caused by antibodies developed against surface antigens. It was first identified in 2007 as presenting with seizures, autonomic dysfunction and movement disorders, in addition to acute or subacute onset of neuropsychiatric symptoms. Multifocal, nonspecific white matter lesions can be seen on cranial magnetic resonance imaging (MRI). Since paraneoplasia is usually found in the etiology, malignancy should be screened in patients with NMDA-R encephalitis. Case description: In our case, a 48-year-old patient is presented who has been diagnosed with anti-NMDA-R encephalitis during the examinations, complaining of numbness on the left side of his face, seizures, imbalance, excessive talkativeness and insomnia. Comment: Autoimmune encephalitis should be considered in patients with suspected autoimmune encephalitis, which takes severe clinical course and fails to respond to treatment adequately; NMDA receptor antibodies and other autoantibody tests should be requested, malignancy screening should be performed and treatment should be started in the early period.

Vertigo and Ischemic Stroke after Hyperextension (Beauty Parlour Stroke syndrome).

Beauty parlour stroke syndrome is a stroke syndrome that occurs secondary to hyperextension of the neck due to compression of the vertebral artery in the atlanto-occipital region. It was first defined as "pearl beauty stroke syndrome" in 1992 by Weintraub et al. Vertigo syndrome caused by cervical region pathologies, bad posture of the neck and/or trauma [1]. We present a young, 23-year-old patient who has no disease, no trauma history nor substance-drug use. He was diagnosed with vertigo that started after going to the barber's and then had an infarction in the cerebellum.

Creutzfeldt-Jakob Disease with Stroke-Like Symptoms: Case report.

Creutzfeldt-Jakob disease (CJD) is a rare, progressive, and fatal prion disease. Often the first sign of CJD is rapidly progressive dementia, leading to memory loss, personality changes, and hallucinations. Myoclonus typically occurs in 90% of cases, but often may not be an initial symptom. Other frequently occurring psychiatric symptoms include depression, anxiety, paranoia, obsessive-compulsive symptoms, and psychosis. Speech disorder, loss of balance and coordination may also accompany. We present a case of CJD with sudden onset of right hemiparesis.