scholarly journals Article Commentary: Dysfunction of Corticomotoneurons in Guillain-Barrέ Syndrome (GBS)?

2009 ◽  
Vol 2 ◽  
pp. CCRep.S3553
Author(s):  
Steve Vucic
Keyword(s):  
Unusual Case ◽  
Clinical Medicine ◽  
Current Issue ◽  
Case Reports ◽  
Pathophysiological Mechanism ◽  
Voltage Gated ◽  
Neurological Finding ◽  
The Central Nervous System ◽  
Conduction Failure ◽  
Possible Cause

Guillain-Barrέ syndrome (GBS) is characterized by acute and symmetric flaccid paraparesis and areflexia. Involvement of the central nervous system has been infrequently reported. In the current issue of Clinical Medicine: Case reports, an unusual case of GBS with asymmetric muscle weakness was reported. Corticomotoneuronal dysfunction was invoked as a possible cause for this neurological finding. Reversible blockade of voltage gated Na+ channels resulting in conduction failure may be a possible pathophysiological mechanism.

An unusual case of spinal cord restricted mycobacteriosis in a European mink

2013 ◽  
Vol 41 (01) ◽  
pp. 63-66
Author(s):  
D. Schaudien ◽  
C. Flieshardt ◽  
I. Moser ◽  
H. Hotzel ◽  
A. Tipold ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Unusual Case ◽  
Histological Evaluation ◽  
Mustela Lutreola ◽  
Chain Reaction ◽  
European Mink ◽  
Pcr Product ◽  
Granulomatous Lesions ◽  
The Central Nervous System ◽  
Polymerase Chain

SummaryGranulomatous myelitis due to infection with Mycobacterium avium was diagnosed in a 4-year-old male neutered European mink (Mustela lutreola). The causative agent was detected by an acid-fast stain and further characterized by polymerase chain reaction and DNA sequencing of the PCR product. A thorough histological evaluation of the remaining organs revealed no granulomatous lesions or detectable acid-fast organisms. Although minks are generally highly susceptible for mycobacteria, localised infections, especially of the central nervous system, are unusual and may represent an atypical chronic form of the disease.

scholarly journals An unusual case of aggressive malignant spread of epithelioid hemangioendothelioma

Rare Tumors ◽  
2021 ◽  
Vol 13 ◽  
pp. 203636132110108
Author(s):  
Ashley D Hickman ◽  
Evandro D Bezerra ◽  
Anja C Roden ◽  
Matthew T Houdek ◽  
Jonathan D Barlow ◽  
...  
Keyword(s):  
Respiratory Failure ◽  
Soft Tissue ◽  
Multimodal Treatment ◽  
Unusual Case ◽  
Case Reports ◽  
Case Series ◽  
Epithelioid Hemangioendothelioma ◽  
Vascular Neoplasm ◽  
Pulmonary Imaging ◽  
Low Incidence

Epithelioid hemangioendothelioma (EHE) is a rare vascular neoplasm which typically originates from liver, lung, or bone. Due to the low incidence of disease, the most effective treatment is not easily studied and much of the information known about EHE has been learned through case reports and case series. In this case, we will present an uncommon form of primary soft tissue EHE with local recurrence, bone metastasis, and lymphangitic spread to the lungs leading to respiratory failure. Imaging of the chest was atypical for EHE with intraseptal thickening and hilar lymphadenopathy. Respiratory failure was progressive despite aggressive multimodal treatment. This case highlights an unusually aggressive recurrence and metastasis of primary soft tissue EHE with atypical pulmonary imaging findings.

scholarly journals Erratum to “Paget´s disease of the male breast: An unusual case in a young man and literature review” [Current Problems in Cancer: Case Reports 1C (2020) 100019]

2021 ◽  
Vol 3 ◽  
pp. 100071
Author(s):  
Vanesa Rodríguez-Fernández ◽  
Lucía Cameselle-Cortizo ◽  
María José Lamas González ◽  
Gonzalo José De Castro Parga ◽  
Javier Valdés-Pons ◽  
...  
Keyword(s):  
Literature Review ◽  
Unusual Case ◽  
Case Reports ◽  
Male Breast ◽  
Cancer Case ◽  
Review Current

scholarly journals Unusual case of amyloidosis presenting as a jejunal mass

2021 ◽  
Vol 14 (5) ◽  
pp. e240226
Author(s):  
Sachin Mohan ◽  
Elliot Graziano ◽  
James Campbell ◽  
Irshad H Jafri
Keyword(s):  
Small Intestine ◽  
Light Chain ◽  
Protein Misfolding ◽  
Unusual Case ◽  
Gi Tract ◽  
Organ Systems ◽  
Light Chain Disease ◽  
Wide Range ◽  
Amyloid Light Chain ◽  
Possible Cause

Amyloidosis constitutes a heterogeneous group of disorders of protein misfolding that can involve different organ systems. The disease can occur either in a systemic or localised manner that is well known to involve the gastrointestinal (GI) tract. GI amyloidosis can present with a wide range of symptoms including diarrhoea, bleeding and obstruction. This case illustrates a patient with localised jejunal amyloid light chain disease that was diagnosed serendipitously during a workup for haematuria. Our patient was otherwise asymptomatic, but this case underscores the importance of considering amyloidosis as a possible cause of isolated masses of the small intestine.

scholarly journals Pt Nanoparticles Anchored on NH2-MIL-101 with Efficient Peroxidase-Like Activity for Colorimetric Detection of Dopamine

Chemosensors ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 140
Author(s):  
Jing Li ◽  
Keying Xu ◽  
Yang Chen ◽  
Jie Zhao ◽  
Peiyao Du ◽  
...  
Keyword(s):  
Active Sites ◽  
Clinical Medicine ◽  
Colorimetric Assay ◽  
Colorimetric Detection ◽  
Pt Nanoparticles ◽  
Robust Detection ◽  
Color Changes ◽  
Relevant Role ◽  
Metal Organic ◽  
The Central Nervous System

Dopamine (DA) is an important catecholamine neurotransmitter that plays a highly relevant role in regulating the central nervous system, and abnormal DA content can cause many immune-related diseases. Hence, it is of significance to sensitively and specifically identify DA for clinical medicine. In this work, Pt/NH2-MIL-101 hybrid nanozymes with bimetallic catalytic centers were fabricated by forming coordinate bonds between Pt nanoparticles (Pt NPs) and –NH2 on metal–organic frameworks (MOF). The catalytic activity of Pt/NH2-MIL-101 was increased by 1.5 times via enlarging the exposure of more active sites and improving the activity of the active sites through the strategy of forming bimetallic catalytic centers. In the presence of DA, competing with 3, 3′, 5, 5′-tetramethylbenzidine (TMB) for the generated hydroxyl radicals (•OH), the blue oxidation state TMB (Ox-TMB) is reduced to colorless TMB, showing dramatic color changes. The Pt/NH2-MIL-101-based colorimetric assay enables the sensitive and robust detection of DA molecules with a detection limit of only 0.42 μM and has an observable potential in clinical applications.

Experimental modeling and clinical technology of photodynamic therapy

2020 ◽  
pp. 72-80
Author(s):  
Daria Aleksandrovna Krapivnitskaya ◽  
Kseniya Vyacheslavovna Kuznetsova ◽  
Igor Valentinovich Barskov ◽  
Vladimir Germanovich Taktarov ◽  
Vladimir Yurievich Pereverzev
Keyword(s):  
Central Nervous System ◽  
Photodynamic Therapy ◽  
Large Scale ◽  
Clinical Medicine ◽  
Practical Importance ◽  
Skin Lesions ◽  
Clinical Aspects ◽  
Regenerative Processes ◽  
Ischemic Tissue ◽  
The Central Nervous System

In recent years, the amount of large-scale experimental and clinical studies has increased considerably leading to the development of techniques and their widespread use both in their field and serving as a basis for the combination of even paradoxically incompatible areas of experimental and clinical medicine. The authors consider one of the main objectives of this work to identify a stable correlation between experimental pathomorphological study in ischemic tissue lesion and a therapeutic effect in dermatology in various pathological processes since the fundamental method in both cases is represented by a photochemical effect on the central nervous system and skin. These studies are not only of theoretical value but also of great practical importance both for neurological (search for medicines used to stimulate regenerative processes in ischemic pathology) and dermatological clinical aspects (ablation method of photodynamic therapy for various skin lesions).

Cochlear Implant Patients with Superficial Siderosis

2009 ◽  
Vol 20 (06) ◽  
pp. 348-352 ◽  
Author(s):  
Sarah A. Sydlowski ◽  
Michael J. Cevette ◽  
Jon Shallop ◽  
David M. Barrs
Keyword(s):  
Central Nervous System ◽  
Hearing Loss ◽  
Cochlear Implant ◽  
Cochlear Implantation ◽  
Case Reports ◽  
Superficial Siderosis ◽  
Viable Option ◽  
Retrospective Case ◽  
Fatal Disease ◽  
The Central Nervous System

Background: Considered a rare disorder, superficial siderosis of the central nervous system (SSCN) has become more frequently diagnosed in recent years. As it is characterized by progressive sensorineural hearing loss, patients' needs may surpass the capability of hearing aid technology. Despite the retrocochlear nature of the disorder, patients have undergone cochlear implantation (CI) with varying success. Purpose: To summarize the issues surrounding cochlear implant candidates with SSCN as well as highlight trends in performance postimplantation. Research Design: Retrospective case reports of seven cochlear implant candidates detail the symptoms, typical audiologic presentation, and array of clinical issues for patients with this progressive and potentially fatal disease. Results: Despite the retrocochlear component of a hearing loss caused by SSCN, cochlear implantation may be a viable option. Conclusions: It is essential that the CI audiologist not only be aware of the disorder but also be well versed in the resulting implications for the cochlear implant process. A more thorough case history, an expanded candidacy test battery, and knowledge of the typical presentation of SSCN are critical. The diagnosis of SSCN will impact expectations for success with the cochlear implant, and counseling should be adjusted accordingly.

scholarly journals Hemorrhagic vestibular schwannoma: an unusual clinical entity

1998 ◽  
Vol 5 (3) ◽  
pp. E14 ◽  
Author(s):  
Dean Chou ◽  
Prakash Sampath ◽  
Henry Brem
Keyword(s):  
Vestibular Schwannoma ◽  
Cranial Nerve ◽  
Unusual Case ◽  
Case Reports ◽  
Clinical Entity ◽  
Vestibular Schwannomas ◽  
Presenting Symptoms ◽  
Cranial Nerve Dysfunction ◽  
Nerve Dysfunction ◽  
Management Issues

Hemorrhagic vestibular schwannomas are rare entities, with only a few case reports in the literature during the last 25 years. The authors review the literature on vestibular schwannoma hemorrhage and the presenting symptoms of this entity, which include headache, nausea, vomiting, sudden cranial nerve dysfunction, and ataxia. A very unusual case is presented of a 36-year-old man, who unlike most of the patients reported in the literature, had clinically silent vestibular schwannoma hemorrhage. The authors also discuss the management issues involved in more than 1000 vestibular schwannomas treated at their institution during a 25-year period.

scholarly journals Aspergillosis of the central nervous system

1996 ◽  
Vol 114 (5) ◽  
pp. 1274-1277 ◽  
Author(s):  
Valdir Golin ◽  
Sandra Regina Schwarzwalder Sprovieri ◽  
José Eduardo Delfini Cançado ◽  
Jefferson Walter Daniel ◽  
Lycia Maria Jenné Mimica
Keyword(s):  
Unusual Case ◽  
Parietal Lobe ◽  
Fungus Ball ◽  
Intracranial Abscess ◽  
Radiological Images ◽  
The Central Nervous System ◽  
Brain Abscesses ◽  
Initiation Of Therapy ◽  
Anti Fungal ◽  
The Brain

The authors report an unusual case involving a 38 year-old man who developed a intracranial abscess caused by Aspergillus of the parietal lobe. Cerebral aspergilloma of an initial pulmonary origin developed in a patient with "Fungus Ball" secondary to tuberculosis sequelae. The diagnosis was made through the isolation of Aspergillus from the secretion of the brain abscesses. The patient was treated with drainage of the abscesses and Amphotericin B. He presented a progressive regression of the radiological images (brain and pulmonary) over a period of 55 days. This report emphasizes the importance of combined anti-fungal therapy and surgical resection as a treatment for cerebral aspergilloma. Furthermore, an early initiation of therapy should improve the prognosis in such cases.

scholarly journals Acute disseminated encephalomyelitis following spider bite

2020 ◽  
Vol 40 (1) ◽  
pp. 38-40
Author(s):  
Petra Bago Rožanković ◽  
Maristela Stojić ◽  
Jasna Badžak
Keyword(s):  
Clinical Presentation ◽  
Demyelinating Disease ◽  
Immunological Response ◽  
Immunoglobulin Therapy ◽  
Acute Disseminated Encephalomyelitis ◽  
Cross Reactivity ◽  
Pathophysiological Mechanism ◽  
Radiological Features ◽  
The Central Nervous System ◽  
Spider Bite

Acute disseminated encephalomyelitis (ADEM) is an inflammatory, demyelinating disease of the central nervous system that occurs as an immunological response to a viral or bacterial infection or an immunization. We describe a patient with clinical presentation and radiological features of ADEM that appeared after a spider bite. Corticosteroid therapy did not produce satisfied treatment response. The patient recovered after five days of immunoglobulin therapy. The cross-reactivity between spider toxin and myelin could explain pathophysiological mechanism of demyelination. ADEM should be considered as a possible complication of a spider bite.

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