scholarly journals Quantitative anatomy of the fused ossification center of the occipital squama in the human fetus

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0247601
Author(s):  
Magdalena Grzonkowska ◽  
Mariusz Baumgart ◽  
Mateusz Badura ◽  
Marcin Wiśniewski ◽  
Michał Szpinda
Keyword(s):  
Gestational Age ◽  
Human Fetus ◽  
Quadratic Function ◽  
Ossification Center ◽  
Diagnostic Process ◽  
Congenital Defects ◽  
Quantitative Anatomy ◽  
Spatial Dimensions ◽  
Projection Surface ◽  
Ossification Centers

CT-based quantitative analysis of any ossification center in the cranium has not previously been carried out due to the limited availability of human fetal material. Detailed morphometric data on the development of ossification centers in the human fetus may be useful in the early detection of congenital defects. Ossification disorders in the cranium are associated with either a delayed development of ossification centers or their mineralization. These aberrations may result in the formation of accessory skull bones that differ in shape and size, and the incidence of which may be misdiagnosed as, e.g., skull fractures. The study material comprised 37 human fetuses of both sexes (16♂, 21♀) aged 18–30 weeks. Using CT, digital image analysis software, 3D reconstruction and statistical methods, the linear, planar and spatial dimensions of the occipital squama ossification center were measured. The morphometric characteristics of the fused ossification center of the occipital squama show no right—left differences. In relation to gestational age, the ossification center of the occipital squama grows linearly in its right and left vertical diameters, logarithmically in its transverse diameters of both the interparietal and supraoccipital parts and projection surface area, and according to a quadratic function in its volume. The obtained numerical findings of the occipital squama ossification center may be considered age-specific references of relevance in both the estimation of gestational age and the diagnostic process of congenital defects.

scholarly journals Quantitative anatomy of the ulna’s shaft primary ossification center in the human fetus

2018 ◽  
Vol 41 (4) ◽  
pp. 431-439 ◽  
Author(s):  
Marcin Wiśniewski ◽  
Mariusz Baumgart ◽  
Magdalena Grzonkowska ◽  
Michał Szpinda ◽  
Katarzyna Pawlak-Osińska
Keyword(s):  
Human Fetus ◽  
Ossification Center ◽  
Quantitative Anatomy ◽  
Primary Ossification Center

scholarly journals Quantitative anatomy of the ilium’s primary ossification center in the human fetus

2018 ◽  
Vol 40 (9) ◽  
pp. 1047-1054 ◽  
Author(s):  
Mariusz Baumgart ◽  
Marcin Wiśniewski ◽  
Magdalena Grzonkowska ◽  
Mateusz Badura ◽  
Maciej Biernacki ◽  
...  
Keyword(s):  
Human Fetus ◽  
Ossification Center ◽  
Quantitative Anatomy ◽  
Primary Ossification Center

Congenital Defects of the Vomer

2000 ◽  
Vol 109 (5) ◽  
pp. 497-499 ◽  
Author(s):  
Mitsuhiro Mohri ◽  
Mutsuo Amatsu
Keyword(s):  
Infectious Disease ◽  
Drug Abuse ◽  
Nasal Septum ◽  
Past History ◽  
University Hospital ◽  
Ossification Center ◽  
Congenital Defects ◽  
Nasal Surgery ◽  
History Of ◽  
Nasal Trauma

Six cases of congenital defect of the vomer, a rare nasal anomaly, are reported. All 6 patients visited Kobe University Hospital with other complaints, and the anomaly was incidentally detected. In all cases, the nasal septum showed a defect at the posteroinferior portion that appeared to coincide with the location of the vomer. None of the patients had a past history of nasal trauma, nasal surgery, drug abuse, or infectious disease. This anomaly may be attributable to an embryological disorder based on an immature ossification center of the vomer.

Comparison of Phototherapy Results in Small-for-Gestational-Age and Appropriate-for-Gestational-Age Infants Weighing Less Than 2,000 Grams

PEDIATRICS ◽  
1985 ◽  
Vol 75 (2) ◽  
pp. 413-441
Author(s):  
Joan E. Hodgman ◽  
Paul Y. K. Wu ◽  
Nathaniel B. White ◽  
Dolores A. Bryla
Keyword(s):  
Birth Weight ◽  
Gestational Age ◽  
Small For Gestational Age ◽  
Congenital Defects ◽  
Intrauterine Growth ◽  
Appropriate For Gestational Age ◽  
Study Population ◽  
Similar Weight ◽  
Gestational Age At Birth ◽  
Evaluation Techniques

The infant who is small for gestational age (SGA) is more mature at birth than similar weight infants who are appropriate for gestational age (AGA). Whether the SGA infant behaves as does the larger gestationally equivalent infant, or whether there are specific changes related to intrauterine growth retardation is a matter of some interest in the understanding of the special needs of these infants. The National Institute of Child Health and Human Development (NICHD) phototherapy study provided a large newborn population for whom birth weight, gestational age at birth, and, thereby, intrauterine growth were carefully assessed. Infants who weighed 2,000 g or more at birth were included in the study only when they became jaundiced, whereas infants who weighed less than 2,000 g at birth were routinely entered into the study. Consequently, this report will be limited to the lowbirth-weight population selected by birth weight. Too few SGA babies were present in the groups with greater birth weight to allow meaningful comparisons. PATIENT SELECTIQN All infants whose birth weight was less than 2,000 g were entered into the study at 24 ± 12 hours. Those excluded from the study were: (1) infants who died before 24 hours, (2) infants with serious congenital defects, and (3) infants whose mothers refused consent for study. The study population consisted of 922 infants surviving at 24 hours. Gestational age was calculated from the first day of the last menstrual period obtained from maternal history and also by the evaluation techniques of Dubowitz.25 Intrauterine growth was determined by plotting birth weight and gestational age on the Denver Intrauterine Growth Curves8; infants below the 10th percentile were considered SGA.

scholarly journals Gestational age and risk for congenital defects: a population-based study

1999 ◽  
Vol 1 (2) ◽  
pp. 44-44
Author(s):  
S A Rasmussen ◽  
C A Moore ◽  
L Paulozzi ◽  
E Rhodenhiser
Keyword(s):  
Gestational Age ◽  
Population Based ◽  
Congenital Defects ◽  
Population Based Study

Sonographic Correlation Between Distal Femoral Epiphysis Ossification Centre And Gestational Age From 28 Weeks To 40 Weeks In Population Of Faisalabad City

2020 ◽  
pp. 12-19
Author(s):  
OJS Admin
Keyword(s):  
Gestational Age ◽  
Age Estimation ◽  
Abdominal Circumference ◽  
Perinatal Morbidity ◽  
Ossification Centre ◽  
Age Assessment ◽  
Crown Rump Length ◽  
Biparietal Diameter ◽  
Distal Femoral Epiphysis ◽  
Ossification Centers

Gestational age assessment is one of the most important tool used for estimation of perinatal morbidity and mortality. Age estimation of fetus can be recorded with the help of various parameters such as biparietal diameter, abdominal circumference, head circumference, length of the kidneys, crown rump length, length of the long bones and ossification centers.

scholarly journals Quantitative anatomy of the primary ossification center of the femoral shaft in human fetuses

2017 ◽  
Vol 39 (11) ◽  
pp. 1235-1242 ◽  
Author(s):  
Mariusz Baumgart ◽  
Marcin Wiśniewski ◽  
Magdalena Grzonkowska ◽  
Mateusz Badura ◽  
Bogdan Małkowski ◽  
...  
Keyword(s):  
Femoral Shaft ◽  
Ossification Center ◽  
Human Fetuses ◽  
Quantitative Anatomy ◽  
Primary Ossification Center
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