Parallel ridge pattern in palmar pagetoid dyskeratosis: a dermoscopic pitfall

2021 ◽  
Author(s):  
Monica Quintana‐Codina ◽  
Noelia Pérez‐Muñoz ◽  
Maribel Iglesias‐Sancho ◽  
Montse Salleras‐Redonnet
Keyword(s):  
Ridge Pattern

scholarly journals Comparative Dermatoglyphic Study Between Schizophrenic Patients and Healthy Controls

KYAMC Journal ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 66-72
Author(s):  
Rashed Mustafa ◽  
Akhtari Afroze ◽  
Sabrina Sobnom ◽  
Abdullah Al Mamun Hossain ◽  
Md Shameem Ahmed ◽  
...  
Keyword(s):  
Medical Science ◽  
Control Loop ◽  
Ridge Pattern ◽  
Fingerprint Pattern ◽  
Loop Pattern ◽  
Schizophrenic Patients ◽  
Healthy Control ◽  
Being There ◽  
Genetically Determined ◽  
Selection Of

Introduction: Dermatoglyphics is the branch of medical science that is concerned with the study of dermal ridges present on fingers, palms, toes and the soles of the human being. There may have some association between fingerprints and schizophrenia regarding the developmental background of skin ridge pattern and brain.So this study was conducted to find out the fingerprint patterns in schizophrenic patients and also to find out sex variation of fingerprint patterns in between schizophrenic male and schizophrenic female. Objective: This study was carried out with a view to find out the fingerprint patterns in schizophrenic patients. Methodology: A total of 200 samples were selected. Among them, 100 were schizophrenic and 100 were normal healthy control. Samples were taken in between 15 to 40 years of age. Selection of schizophrenic sample was performed by a qualified psychiatrist. Fingerprints were taken by Ink and pad method, described by Cummins. Fingerprint patterns were observed by using a magnifying glass. Results: The frequency of common fingerprint pattern was reduced in schizophrenia. In healthy control loop pattern was predominant. But in schizophrenia frequency of loop pattern was reduced and there was an increased frequency of whorl and arch pattern. Conclusion: Asdermatoglyphics is genetically determined, predominant whorl and arch pattern found among the schizophrenic patients might provide a presumptive value which would aid in diagnosis of the disease. KYAMC Journal Vol. 10, No.-2, July 2019, Page 66-72

New species and record of Pseudonereis (Annelida, Polychaeta, Nereididae) from Taiwan

Zootaxa ◽  
2021 ◽  
Vol 4996 (3) ◽  
pp. 492-512
Author(s):  
PAN-WEN HSUEH
Keyword(s):  
New Species ◽  
New Record ◽  
Length Ratio ◽  
Offshore Island ◽  
The Past ◽  
New Record Species ◽  
Ridge Pattern ◽  
Two New Species ◽  
First Time ◽  
Key Characters

Two new species and one new record species of the genus Pseudonereis are described from specimens collected from ecological surveys of coasts of Taiwan and an offshore island during the past 15 years: P. jihueiensis n. sp., P. kihawensis n. sp., and P. trimaculata. Epitokes of P. jihueiensis n. sp. and P. trimaculata are also described. Pseudonereis jihueiensis n. sp. can be distinguished from congeners by having edentate jaws, χ-shaped ridge pattern of Areas VI–V–VI, parapodial morphology (i.e., length ratio of dorsal cirrus to dorsal ligule or presence of small pennant-like dorsal ligule, shape of dorsal ligule in certain region of chaetigers), and no heterogomph spinigers in the subacicular fascicle of the neuropodia. Pseudonereis kihawensis n. sp. differs from congeners by having crescent-shaped pointed-bars in Area VI, λ-shaped ridge pattern of Areas VI–V–VI, parapodial morphology (i.e., length ratio of dorsal cirrus to dorsal ligule or presence of small pennant-like dorsal ligule or shape of dorsal ligule in certain region of chaetigers), and no heterogomph spinigers in the subacicular fascicle of the neuropodia. Pseudonereis trimaculata, a species originally described from Indonesia, is reported from Taiwan for the first time. A table of key characters for all species of Pseudonereis is provided.  

Acral melanocytic nevus of the sole with the parallel ridge pattern

2013 ◽  
Vol 23 (6) ◽  
pp. 902-903
Author(s):  
Naoki Oiso ◽  
Akira Kawada
Keyword(s):  
Melanocytic Nevus ◽  
Ridge Pattern

scholarly journals Study of palmar dermatoglyphic pattern in syndactyly patients

2015 ◽  
Vol 04 (03) ◽  
pp. 123-127
Author(s):  
M Y Dofe ◽  
M M Meshram
Keyword(s):  
Close Association ◽  
Ridge Count ◽  
Ridge Pattern

Abstract Background and aims : Syndactyly is congential fusion between fingers which may vary from simple fusion of skin to fusion betweeo bony componeots of fingers. The aim of this study was to find out the range of dermatoglyphic abnormalities io syndactyly patient because of close association between underlying tissue (derived from mesoderm) and overlying epidermis (derived from ectoderm) duriog embryogenesis of hand. Materials and methods : Present study was carried out io 20 patients with congenital syndactyly of fingers. The authors evaluated fingertip patterns, axial triradius, palmar pattern, flexion creases, a-b ridge count, digital triradii and pattern intensity. Results : Remarkable dermatoglyphic variations were observed io syndactylous hands, which were rare io normal hands. Conclusion : There are certain specific associations between anomalous hands and dermatoglyphic patterns indicating that underlying mesenchyme influences the development of epidermis derived from ectoderm and so the ridge pattern.

Benign Dermoscopic Parallel Ridge Pattern Variants

2011 ◽  
Vol 147 (5) ◽  
pp. 634 ◽  
Author(s):  
Alice Phan ◽  
Stéphane Dalle ◽  
Marie-Cécile Marcilly ◽  
Jean-Pierre Bergues ◽  
Luc Thomas
Keyword(s):  
Ridge Pattern

scholarly journals Melanocytic Naevus Shows Parallel Ridge Pattern due to the Melanin Columns Under the Ridges

2015 ◽  
Vol 95 (1) ◽  
pp. 95-96
Author(s):  
T Sano ◽  
A Minagawa ◽  
H Koga ◽  
H Uhara ◽  
R Okuyama
Keyword(s):  
Ridge Pattern ◽  
Melanocytic Naevus

scholarly journals A Climatology of the Mesoscale Environment Associated with Heavily Precipitating Events over a Northwestern Mediterranean Area

2012 ◽  
Vol 51 (3) ◽  
pp. 468-488 ◽  
Author(s):  
Didier Ricard ◽  
Véronique Ducrocq ◽  
Ludovic Auger
Keyword(s):  
Daily Precipitation ◽  
Flow Instability ◽  
Three Dimensional ◽  
Mediterranean Area ◽  
Mature Stage ◽  
Target Area ◽  
High Moisture ◽  
Low Level ◽  
Ridge Pattern ◽  
Low Level Jet

AbstractA climatological approach is developed to characterize the mesoscale environment in which heavily precipitating events (HPEs) grow over a mountainous Mediterranean area. This climatology that is based on three-dimensional variational data assimilation (3D-Var) mesoscale analyses is performed for a 5-yr period, considering cases with daily precipitation of >150 mm occurring over southern France during autumn. Different diagnostics are used to document the time evolution of mesoscale features associated with the HPEs for initiation, mature, and dissipation stages. To underline differences according to the location of precipitation, four subdomains are also considered: Languedoc-Roussillon, Cévennes-Vivarais, South Alps, and Corsica. Composite analyses show that these events are driven by some common features (slowly evolving trough–ridge pattern and diffluent midlevel flow). Instability and moisture are transported by the low-level jet (LLJ) toward the target area from their sources, which are located upstream over the Mediterranean Sea. Strong moisture convergence is located within the left exit of the LLJ. These parameters reach a maximum during the mature stage. During the life cycle of the HPEs, the low-level winds rotate clockwise. Composite analyses also show that the synoptic and mesoscale patterns can differ greatly as a function of the location of the precipitation. Indeed, the LLJ varies from southeasterly to southwesterly. The midlevel flow varies from southerly to southwesterly. The areas of high moisture and instability are stretched in different orientations. Long-lasting events are associated with a more pronounced quasi-stationary trough–ridge pattern, higher values of CAPE, a wetter troposphere, and faster LLJ. The most-heavily precipitating events are found to be in general associated with higher values of these parameters or with a low-level inflow that is closer to perpendicular to the relief.

Parallel ridge pattern above an arteriovenous malformation

2017 ◽  
Vol 44 (7) ◽  
pp. e160-e161
Author(s):  
Takeshi Namiki ◽  
Sakiko Chikazawa ◽  
Kohei Nojima ◽  
Makiko Ueno ◽  
Keiko Miura ◽  
...  
Keyword(s):  
Arteriovenous Malformation ◽  
Ridge Pattern

scholarly journals Morphogenesis of Bacillus Spore Surfaces

2003 ◽  
Vol 185 (21) ◽  
pp. 6255-6261 ◽  
Author(s):  
Venkata G. R. Chada ◽  
Erik A. Sanstad ◽  
Rong Wang ◽  
Adam Driks
Keyword(s):  
Surface Morphology ◽  
Bacillus Anthracis ◽  
Dynamic Structure ◽  
Coat Proteins ◽  
Force Microscopy ◽  
Bacillus Spore ◽  
Atomic Force ◽  
Ridge Pattern ◽  
Direct Formation ◽  
Species Specific

ABSTRACT Spores produced by bacilli are encased in a proteinaceous multilayered coat and, in some species (including Bacillus anthracis), further surrounded by a glycoprotein-containing exosporium. To characterize bacillus spore surface morphology and to identify proteins that direct formation of coat surface features, we used atomic-force microscopy (AFM) to image the surfaces of wild-type and mutant spores of Bacillus subtilis, as well as the spore surfaces of Bacillus cereus 569 and the Sterne strain of Bacillus anthracis. This analysis revealed that the coat surfaces in these strains are populated by a series of bumps ranging between 7 and 40 nm in diameter, depending on the species. Furthermore, a series of ridges encircled the spore, most of which were oriented along the long axis of the spore. The structures of these ridges differ sufficiently between species to permit species-specific identification. We propose that ridges are formed early in spore formation, when the spore volume likely decreases, and that when the spore swells during germination the ridges unfold. AFM analysis of a set of B. subtilis coat protein gene mutants revealed three coat proteins with roles in coat surface morphology: CotA, CotB, and CotE. Our data indicate novel roles for CotA and CotB in ridge pattern formation. Taken together, these results are consistent with the view that the coat is not inert. Rather, the coat is a dynamic structure that accommodates changes in spore volume.

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