vitamin b 12 deficiency/asthenia

A 21-year-old university student studying abroad in the USA presented to the emergency department with double vision, lower extremity weakness with difficulty ambulating and other neuropsychiatric symptoms. MRI of the brain and spinal cord were normal. Vitamin B₁₂ was 78 pg/mL (58 pmol/L,

A 34 years old male, presenting with progressive proximal weakness, with a neurogenic pattern on needle EMG, and a family history suggestive of an autosomal recessive disorder, was found to have additional features of myeloneuropathy and a down beat nystagmus. A low serum vitamin B12 level was

A 50-year-old man presented with a four-year history of unsteadiness, with recent falls and tingling in his fingers. Neurological examination found an ataxic gait, with a positive Romberg's sign. There was distal wasting and weakness in all four limbs and impaired co-ordination, with pseudoathetosis

We present the case of a 40-year-old woman with progressive lower-limb weakness resulting in an inability to mobilise independently. This was associated with a degree of confusion and shortness of breath on exertion. This case illustrates rare and severe complications of vitamin B(12) deficiency,

OBJECTIVE In developing countries, nutritional vitamin B(12) deficiency in infants due to maternal diet without adequate protein of animal origin has some characteristic clinical features. In this study, haematological, neurological and gastrointestinal characteristics of nutritional vitamin B(12)

Abnormal spontaneous potentials, specifically myokymia, can occur from various causes. We present the case of a 64-year-old woman with a 12-month history of left leg weakness and difficulty descending stairs. The patients' medical history was significant for breast carcinoma (no node involvement),

This report is on a 22-year-old male vegetarian with acute polyneuropathy secondary to vitamin B(12) deficiency. He presented with weakness and numbness of the distal limbs and absent deep tendon reflex in all four extremities. Nerve conduction study (NCS) showed an axonal type sensori-motor

An 8-year-old girl presented with severe muscular weakness, peripheral neuropathy, ataxia, fever and macrocytic anaemia. Clinically, vitamin B(12) (cobalamin) deficiency was considered. Despite the lack of pre-treatment laboratory confirmation of the diagnosis, a therapeutic trial of

Vitamin B(12) deficiency in infants often produces haematological and neurological deficits, including macrocytic anaemia, neurodevelopmental delay or regression, irritability, weakness, hypotonia, ataxia, apathy, tremor, and seizures. The diagnosis of vitamin B(12) deficiency can be difficult when

Pernicious anemia (PA) is a macrocytic anemia that is caused by vitamin B(12) deficiency, as a result of intrinsic factor deficiency. PA is associated with atrophic body gastritis (ABG), whose diagnosis is based on histological confirmation of gastric body atrophy. Serological markers that suggest