Chest Mass in a Newborn Infant

A 36 year old man presented with a mass in the chest and multiple “hot” focal lesions were identified on bone scan. Fine needle aspiration was performed of the chest mass. Routine histology showed the presence of some bundles of dense fibrous tissue and a diffuse infiltration of mononuclear cells, which varied in size and nucleo-cytoplasmic ratio. The smaller cells had eccentric hyperchromatic nuclei. Nucleoli were noted in the larger cells. There was well marked cytoplasmic vacuolation of some of the cells. Mitosis was present. A small fragment of tissue was received for electron microscopy. Examination of 1 μm sections showed trabeculae of medium-large polygonal cells with eccentric nuclei and occasional nucleoli. Some irregularly shaped cells had well marked cytoplasmic vacuolation. Mitotic figures were present.

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Correlation between level of self-regulation in the newborn infant and developmental status at two years of age

Acta Paediatrica ◽

10.1080/08035250117666 ◽

2001 ◽

Vol 90 (3) ◽

pp. 345-350 ◽

Cited By ~ 33

Author(s):

C. Lundqvist-Persson

Keyword(s):

Newborn Infant ◽

Self Regulation ◽

Developmental Status

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Mothers' perception of self-efficacy and its association with newborn infant behavior

PsycEXTRA Dataset ◽

10.1037/e579192013-229 ◽

2012 ◽

Author(s):

C. Costas-Moragas ◽

M. Mancera-Jimenez ◽

A. Fornieles-Deu ◽

F. Botet-Mussons

Keyword(s):

Newborn Infant ◽

Self Efficacy ◽

Infant Behavior ◽

Perception Of Self

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Erythema Toxicum Neonatorum Is an Innate Immune Response to Commensal Microbes Penetrated Into the Skin of the Newborn Infant

Yearbook of Dermatology and Dermatologic Surgery ◽

10.1016/s0093-3619(08)70191-6 ◽

2006 ◽

Vol 2006 ◽

pp. 245-246

Author(s):

S. Raimer

Keyword(s):

Immune Response ◽

Newborn Infant ◽

Innate Immune Response ◽

Innate Immune

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Bacterial Meningitis in the Newborn Infant

Clinics in Perinatology ◽

10.1016/s0095-5108(18)31224-7 ◽

1977 ◽

Vol 4 (1) ◽

pp. 103-116 ◽

Cited By ~ 17

Author(s):

Ralph D. Feigin

Keyword(s):

Bacterial Meningitis ◽

Newborn Infant

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The Platelet of the Newborn Infant – Adenine Nucleotide Metabolism and Release

Thrombosis and Haemostasis ◽

10.1055/s-0038-1650026 ◽

1980 ◽

Vol 43 (02) ◽

pp. 099-103 ◽

Cited By ~ 9

Author(s):

J M Whaun ◽

P Lievaart ◽

Keyword(s):

Newborn Infant ◽

Adenine Nucleotide ◽

Platelet Rich Plasma ◽

Adenine Nucleotides ◽

Newborn Infants ◽

Specific Radioactivity ◽

Nucleotide Metabolism ◽

Breakdown Product ◽

Term Infants ◽

Adenine Nucleotide Metabolism

SummaryBlood from normal full term infants, mothers and normal adults was collected in citrate. Citrated platelet-rich plasma was prelabelled with 3H-adenine and reacted with release inducers, collagen and adrenaline. Adenine nucleotide metabolism, total adenine nucleotide levels and changes in sizes of these pools were determined in platelets from these three groups of subjects.At rest, the platelet of the newborn infant, compared to that of the mother and normal adult, possessed similar amounts of adenosine triphosphate (ATP), 4.6 ± 0.2 (SD), 5.0 ± 1.1, 4.9 ± 0.6 µmoles ATP/1011 platelets respectively, and adenosine diphosphate (ADP), 2.4 ± 0.7, 2.8 ± 0.6, 3.0 ± 0.3 umoles ADP/1011 platelets respectively. However the marked elevation of specific radioactivity of ADP and ATP in these resting platelets indicated the platelet of the neonate has decreased adenine nucleotide stores.In addition to these decreased stores of adenine nucleotides, infant platelets showed significantly impaired release of ADP and ATP on exposure to collagen. The release of ADP in infants, mothers, and other adults was 0.9 ± 0.5 (SD), 1.5 ± 0.5, 1.5 ± 0.1 umoles/1011 platelets respectively; that of ATP was 0.6 ± 0.3, 1.0 ± 0.1,1.3 ± 0.2 µmoles/1011 platelets respectively. With collagen-induced release, platelets of newborn infants compared to those of other subjects showed only slight increased specific radioactivities of adenine nucleotides over basal levels. The content of metabolic hypoxanthine, a breakdown product of adenine nucleotides, increased in both platelets and plasma in all subjects studied.In contrast, with adrenaline as release inducer, the platelets of the newborn infant showed no adenine nucleotide release, no change in total ATP and level of radioactive hypoxanthine, and minimal change in total ADP. The reason for this decreased adrenaline reactivity of infant platelets compared to reactivity of adult platelets is unknown.Infant platelets may have different membranes, with resulting differences in regulation of cellular processes, or alternatively, may be refractory to catecholamines because of elevated levels of circulating catecholamines in the newborn period.

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Oxygen Consumption in Platelets of Newborn Infants before and after Stimulation by Thrombin.

Thrombosis and Haemostasis ◽

10.1055/s-0038-1647969 ◽

1976 ◽

Vol 35 (03) ◽

pp. 712-716 ◽

Cited By ~ 3

Author(s):

D. Del Principe ◽

G Mancuso ◽

A Menichelli ◽

G Maretto ◽

G Sabetta

Keyword(s):

Oxygen Consumption ◽

Cord Blood ◽

Umbilical Cord ◽

Newborn Infant ◽

Umbilical Cord Blood ◽

Newborn Infants ◽

O2 Consumption ◽

Adult Control ◽

Healthy Newborn ◽

Before And After

SummaryThe authors compared the oxygen consumption in platelets from the umbilical cord blood of 36 healthy newborn infants with that of 27 adult subjects, before and after thrombin addition (1.67 U/ml). Oxygen consumption at rest was 6 mμmol/109/min in adult control platelets and 5.26 in newborn infants. The burst in oxygen consumption after thrombin addition was 26.30 mμmol/109/min in adults and 24.90 in infants. Dinitrophenol did not inhibit the burst of O2 consumption in platelets in 8 out of 10 newborn infants, while the same concentration caused a decrease in 9 out of 10 adult subjects. Deoxyglucose inhibited the burst in O2 consumption in newborn infant and adult platelets by about 50%. KCN at the concentration of 10−4 M completely inhibited basal oxygen consumption but did not completely inhibit the burst after thrombin. At the concentration of 10−3 M, it inhibited both basal O2 consumption and the burst in infants and adult subjects.

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Severe Inherited “Homozygous” Protein C Deficiency in a Newborn Infant

Thrombosis and Haemostasis ◽

10.1055/s-0038-1661136 ◽

1984 ◽

Vol 52 (01) ◽

pp. 053-056 ◽

Cited By ~ 77

Author(s):

A Estellés ◽

I Garcia-Plaza ◽

A Dasí ◽

J Aznar ◽

M Duart ◽

...

Keyword(s):

Newborn Infant ◽

Protein C ◽

Skin Lesions ◽

Fresh Frozen Plasma ◽

Clinical Syndrome ◽

Assay Method ◽

Enzyme Linked Immunosorbent Assay ◽

Protein C Deficiency ◽

Fresh Frozen ◽

Frozen Plasma

SummaryA relapsing clinical syndrome of skin lesions and disseminated intravascular coagulation (DIC) that showed remission with the infusion of fresh frozen plasma is described in a newborn infant with homozygous deficiency of protein C antigen.This patient presented since birth a recurrent clinical picture of DIC and ecchymotic skin lesions that resembled typical ecchymosis except for the fact that they showed immediate improvement with the administration of fresh frozen plasma. Using an enzyme linked immunosorbent assay method, the determination of protein C antigen levels in the patient, without ingestion of coumarin drugs, showed very low values (<1%).No other deficiencies in the vitamin-K-dependent factors or in anti thrombin III, antiplasmin, and plasminogen were found. Seven relatives of the infant had heterozygous deficiency in protein C antigen (values between 40-55%), without clinical history of venous thrombosis. The pedigree analysis of this family suggests an autosomal recessive pattern of inheritance for the clinical phenotype, although an autosomal dominant pattern has been postulated until now in other reported families.We conclude that our patient has a homozygous deficiency in protein C and this homozygous state may be compatible with survival beyond the neonatal period.

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