scholarly journals Knuckle Pigmentation as an Early Cutaneous Sign of Vitamin B12 Deficiency: A Case Report

2020 ◽  
Vol 58 (230) ◽  
Author(s):  
Ankita Srivastava ◽  
Sanjiv Choudhary
Keyword(s):  
Case Report ◽  
Vitamin B12 ◽  
Oral Therapy ◽  
Megaloblastic Anemia ◽  
Vitamin B12 Deficiency ◽  
Neurological Complications ◽  
Neurological Deficits ◽  
B12 Deficiency ◽  
Systemic Manifestations ◽  
Nutritional Vitamin

Vitamin B12 deficiency can present with variable hematological, neuropsychiatric, and mucocutaneous changes. Hyperpigmentation, specifically involving the knuckles has been described in vitamin B12 deficiency, but usually,these patients are symptomatic with systemic manifestations like megaloblastic anemia, pancytopenia, or neurological deficits. Here, we are reporting a case of nutritional vitamin B12 deficiency, who presented with isolated knuckle pigmentation and was successfully treated with oral therapy. This case also highlights the importance of recognizing this cutaneous sign as an early marker of vitamin B12 deficiency; thereby enabling the clinician to treat the disease before it leads to irreversible neurological complications.

scholarly journals KNUCKLE HYPERPIGMENTATION AS A PRELIMINARY MARKER OF VITAMIN B 12 DEFICIENCY: A CASE SERIES

2021 ◽  
pp. 36-38
Author(s):  
Manali Patil ◽  
S. N. Agrawal ◽  
V. V. Saoji
Keyword(s):  
Vitamin B12 ◽  
Megaloblastic Anemia ◽  
Case Series ◽  
Vitamin B12 Deficiency ◽  
Neurological Deficits ◽  
Vitamin B ◽  
Important Clue ◽  
B12 Deficiency ◽  
Systemic Manifestations ◽  
Vitamin B 12

Vitamin B12 deficiency is common in vegetarian population in India and can present with variable Hematological (megaloblastic anemia), Neuropsychiatric, Mucocutaneous (glossitis, angular stomatitis), Skin (pallor, hyperpigmentation) and Hair changes (dry, brittle, thin, lustreless, prematurely grey). Knuckle hyperpigmentation has been described in vitamin B12 deficiency but usually these patients are dermatologically asymptomatic but they have systemic manifestations like megaloblastic anemia, pancytopenia or neurological deficits. The foreground of this study is highlighting the importance of knuckle hyperpigmentation as an early cutaneous sign of vitamin B12 deficiency which points an important clue towards the aetiology of Megaloblastic anemia.

scholarly journals Severe Haemolytic Anaemia, a Rare Presentation of Nutritional Vitamin B12 Deficiency: A Case Report

2019 ◽  
Vol 2 (1) ◽  
pp. 188-190
Author(s):  
Aamir Siddiqui
Keyword(s):  
Case Report ◽  
Vitamin B12 ◽  
Hemolytic Anemia ◽  
Megaloblastic Anemia ◽  
Vitamin B12 Deficiency ◽  
Pernicious Anaemia ◽  
Rare Form ◽  
Rare Presentation ◽  
B12 Deficiency ◽  
Nutritional Vitamin

Vitamin B12 deficiency usually presents with megaloblastic anemia, pancytopenia, and neurological symptoms. The cause is usually, nutritional deficiency, increase demand, decrease absorption. This report describes a case with symptoms of apathy and findings suggestive of severe hemolytic anemia, diagnosed with vitamin B12 deficiency. Haemolysis is a rare hematological finding in cases of B12 deficiency, and descriptions of a nutritional vitamin B12 deficiency, without evidence of pernicious anaemia, causing haemolysis, are even scarcer, and this paper was intended to draw physicians’ attention to this rare form of presentation.

scholarly journals Transient vitamin B12 deficiency of maternal cause: case report

2020 ◽  
Vol 10 (3) ◽  
Author(s):  
Ludmila Feitosa ◽  
Danilo Pereira ◽  
Marianna Maia ◽  
Maria Fernandes Neta ◽  
Nahara Jurema ◽  
...  
Keyword(s):  
Case Report ◽  
Vitamin B12 ◽  
Methylmalonic Acid ◽  
Megaloblastic Anemia ◽  
Vitamin B12 Deficiency ◽  
Serum Levels ◽  
Animal Origin ◽  
B12 Deficiency ◽  
Meat And Eggs ◽  
Low Serum

Vitamin B12 or cyanocobalamin is obtained from the intake of food of restricted animal origin, especially milk, meat and eggs. During pregnancy, the fetus reserves vitamin B12 in the liver. This reserve is able to provide the needs of this vitamin in the first months of life. Our case refers to a 6-month-old infant in exclusive breastfeeding, who started a picture of loss of neuropsychomotor development, associated with hypotonia and megaloblastic anemia. Exams showed low serum levels of vitamin B12 and increased values of methylmalonic acid and homocysteine. Maternal research was performed, even if asymptomatic and without reports of comorbidities. Patient presented progressive improvement with vitamin B12 replacement, which was subsequently suspended, remaining only with the diet and with good evolution.

A case report on Subacute Combined Degeneration of spinal cord in children – A rare neurological manifestation in Vitamin B12 deficiencies

2017 ◽  
Vol 6 (12) ◽  
pp. 5562
Author(s):  
Tiana Mary Alexander ◽  
Vineeta Pande ◽  
Sharad Agarkhedkar ◽  
Dnyaneshwar Upase
Keyword(s):  
Spinal Cord ◽  
Case Report ◽  
Vitamin B12 ◽  
Pernicious Anemia ◽  
Chronic Diarrhea ◽  
Megaloblastic Anemia ◽  
Vegetarian Diet ◽  
Malabsorption Syndrome ◽  
Subacute Combined Degeneration ◽  
B12 Deficiency

Megaloblastic anemia is a common feature between 6 months – 2 years and rarely occurs after 5 years of age, especially in a child consuming non-vegetarian diet. B12 deficiency may occur after 5 years of age because of chronic diarrhea, malabsorption syndrome, or intestinal surgical causes. Pernicious anemia causes B12 deficiency, but nutritional B12 deficiency with subacute combined degeneration causing ataxia is rare.

Glossodynia as an Unusual Manifestation of Vitamin B12 Deficiency -A case report-

2006 ◽  
Vol 19 (2) ◽  
pp. 275 ◽  
Author(s):  
Jung Hun Lee ◽  
Il Man Jeong ◽  
Won Goo Seo ◽  
Chul Ho Woo ◽  
Jong Seok Bae ◽  
...  
Keyword(s):  
Case Report ◽  
Vitamin B12 ◽  
Vitamin B12 Deficiency ◽  
Unusual Manifestation ◽  
B12 Deficiency

scholarly journals Circulating antibody to transcobalamin II causing retention of vitamin B12 in the blood

Blood ◽  
1977 ◽  
Vol 49 (6) ◽  
pp. 987-1000 ◽  
Author(s):  
R Carmel ◽  
B Tatsis ◽  
L Baril
Keyword(s):  
Vitamin B12 ◽  
Binding Capacity ◽  
Megaloblastic Anemia ◽  
Serum Vitamin ◽  
Vitamin B12 Deficiency ◽  
High Serum ◽  
The Status ◽  
B12 Deficiency ◽  
Long Acting

A patient with recurrent pulmonary abscess, weight loss, and alcoholism was found to have extremely high serum vitamin B12 and unsaturated vitamin B12-binding capacity (UBBC) levels. While transcobalamin (TC) II was also increased, most of his UBBC was due to an abnormal binding protein which carried greater than 80% of the endogenous vitamin B12 and was not found in his saliva, granulocytes, or urine. This protein was shown to be a complex of TC II and a circulating immunoglobulin (IgGkappa and IgGlambda). Each IgG molecule appeared to bind two TC II molecules. The reacting site did not interfere with the ability of TC II to bind vitamin B12, but did interfere with its ability to transfer the vitamin to cells in vitro. The site was not identical to that reacting with anti-human TC II antibody produced in rabbits. Because of this abnormal complex, 57Co-vitamin B12 injected intravenously was cleared slowly by the patient. However, no metabolic evidence for vitamin B12 deficiency was demonstrable, although the patient initially had megaloblastic anemia apparently due to folate deficiency. The course of the vitamin B12-binding abnormalities was followed over 4 yr and appeared to fluctuate with the status of the patient's illness. The IgG-TC II complex resembled one induced in some patients with pernicious anemia by intensive treatment with long-acting vitamin B12 preparations. The mechanism of induction of the antibody formation in our patient is unknown.

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