scholarly journals Tertiarius minutulus sp. nov. (Stephanodiscaceae, Bacillariophyta) – a new fossil diatom species from Lake Ohrid

2020 ◽  
Author(s):  
Dušica Zaova ◽  
Aleksandra Cvetkoska ◽  
Danijela Mitic-Kopanja ◽  
Elena Jovanovska ◽  
Nadja Ognjanova-Rumenova ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Lake Basin ◽  
Diatom Species ◽  
Lake Ohrid ◽  
Fossil Taxon ◽  
Early Stages ◽  
Round Shape ◽  
Basin Development ◽  
Valve Margin ◽  
First Occurrence

A new fossil diatom species, Tertiarius minutulus sp. nov., is described from a sediment sequence DEEP-5045-1 of Lake Ohrid. The species is characterized by small valves (3.0–8.0 µm) with a round shape, a marginal area with radially arranged costae and a central uneven area with scattered areolae. Externally, the alveoli are occluded by cribra perforated by irregularly arranged pores. Internally, the alveoli are simple and areolae are occluded with domed cribra. The marginal fultoportulae are situated on costae close to the valve margin, located on every 5th or 7th thick internal costa. One to three fultoportulae are present on the valve face, each surrounded by two to three satellite pores. One rimoportula is present, positioned on a costa at the valve face / mantle junction. The species is compared with morphologically similar taxa and a detailed differential diagnosis is provided. Tertiarius minutulus sp. nov. is known only as a fossil taxon from Lake Ohrid, with a first occurrence during the early stages of lake basin development.

scholarly journals Nasolabial Cyst

2009 ◽  
Vol 2009 ◽  
pp. 1-2 ◽  
Author(s):  
Caner Sahin
Keyword(s):  
Differential Diagnosis ◽  
Soft Tissue ◽  
Tissue Cyst ◽  
Diagnosis And Treatment ◽  
Early Stages ◽  
Maxillary Region

Nasolabial cyst is a rare nonodontogenics, soft-tissue cyst occurring in the sublabial area and anterior maxillary region. The patient usually presents with a slowly enlarging asymptomatic swelling. They are usually diagnosed in early stages because of cosmetic problems. In our paper we report anasolabial cystof a 53-year-old man and discuss the diagnosis, differential diagnosis, and treatment in the light of the literature.

scholarly journals The birth of a forearc: The basal Great Valley Group, California, USA

Geology ◽  
2019 ◽  
Vol 47 (8) ◽  
pp. 757-761 ◽  
Author(s):  
Devon A. Orme ◽  
Kathleen D. Surpless
Keyword(s):  
North America ◽  
Detrital Zircon ◽  
Forearc Basin ◽  
Early Stages ◽  
Structural Style ◽  
Basin Development ◽  
Great Valley Group ◽  
Extensional Model ◽  
Great Valley

AbstractThe Great Valley basin of California (USA) is an archetypal forearc basin, yet the timing, structural style, and location of basin development remain controversial. Eighteen of 20 detrital zircon samples (3711 new U-Pb ages) from basal strata of the Great Valley forearc basin contain Cretaceous grains, with nine samples yielding statistically robust Cretaceous maximum depositional ages (MDAs), two with MDAs that overlap the Jurassic-Cretaceous boundary, suggesting earliest Cretaceous deposition, and nine with Jurassic MDAs consistent with latest Jurassic deposition. In addition, the pre-Mesozoic age populations of our samples are consistent with central North America sources and do not require a southern provenance. We interpret that diachronous initiation of sedimentation reflects the growth of isolated depocenters, consistent with an extensional model for the early stages of forearc basin development.

General Paresis Complicating Huntington's Chorea

1958 ◽  
Vol 104 (437) ◽  
pp. 1203-1204 ◽  
Author(s):  
H. Merskey
Keyword(s):  
Differential Diagnosis ◽  
Family History ◽  
Clinical Syndrome ◽  
General Paresis ◽  
Serological Evidence ◽  
Huntington's Chorea ◽  
Academic Interest ◽  
Early Stages ◽  
Kinnier Wilson

That chorea may sometimes occur as a result of cerebral syphilis has been accepted for some years (Kinnier Wilson 1940) and it has often previously been reported in association with G.P.I. The literature on the topic is dealt with by Lowrey and Smith (1918), Stone and Falstein (1938) and Weickhardt (1945). In all the reports however I can find only three previous instances where clinical and serological evidence of G.P.I. in a patient was associated with a family history and clinical syndrome of Huntington's chorea. These cases were reported by Pagliano and Aviennos (1922), Urechia and Rusdea (1922) and Stone and Falstein (1938) and the case here described appears to be only the fourth similar example to be reported. It has a practical as well as an academic interest since the differential diagnosis of the early stages of Huntington's chorea from those of G.P.I. is still sometimes necessary.

Current possibilities of the differential diagnosis of plaque parapsoriasis and the early stages of mycosis fungoides

2019 ◽  
Vol 81 (1) ◽  
pp. 9
Author(s):  
O. Yu. Olisova ◽  
E. V. Grekova ◽  
V. A. Varshavsky ◽  
L. G. Gorenkova ◽  
E. A. Alekseeva ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Mycosis Fungoides ◽  
Early Stages

scholarly journals Idiopathic inflammatory demyelining diseases: optimization of early diagnosis, predictors of the course

2021 ◽  
Vol 2 (2) ◽  
pp. 80-87
Author(s):  
Z A. Goncharova ◽  
Y. Y. Pogrebnova
Keyword(s):  
Multiple Sclerosis ◽  
Differential Diagnosis ◽  
Dietary Habits ◽  
Statistical Processing ◽  
Large Data ◽  
Demyelinating Diseases ◽  
Surgical Interventions ◽  
Early Stages ◽  
Highly Active ◽  
Patient Questionnaires

Objective: to describe the clinical and epidemiological features of idiopathic inflammatory demyelinating diseases and to determine the factors influencing their course. Materials and methods: the study included 803 patients with idiopathic inflammatory demyelinating diseases using patient questionnaires and scales, laboratory and instrumental research methods. Statistical processing of the results was carried out using a point biserial coefficient and programs for analyzing large data arrays and machine learning. Results: a dynamic increase in the prevalence of some forms of idiopathic inflammatory demyelinating diseases was revealed, the difficulties of differential diagnosis of rare forms of demyelination and the need to create a unified version of their classification are reflected. In the studied population, the effectiveness of liquorological examination in the diagnosis of multiple sclerosis in the early stages of the disease was shown. It has been shown that the likelihood of developing highly active multiple sclerosis is influenced by both a genetic factor and concomitant inflammatory, allergic and autoimmune diseases, surgical interventions, dietary habits, childhood infections, and a history of pregnancy. Conclusions: given the complexity of the differential diagnosis of idiopathic inflammatory demyelinating diseases and the appointment of modifying therapy in multiple sclerosis in the early stages, it is necessary to create a combined classification and maintain a common register.

scholarly journals The last glacial-interglacial cycle in Lake Ohrid (Macedonia/Albania): testing diatom response to climate

2010 ◽  
Vol 7 (3) ◽  
pp. 4689-4714 ◽  
Author(s):  
J. M. Reed ◽  
A. Cvetkoska ◽  
Z. Levkov ◽  
H. Vogel ◽  
B. Wagner
Keyword(s):  
Morphological Variability ◽  
Central Area ◽  
Early Holocene ◽  
Future Research ◽  
Lake Basin ◽  
Last Interglacial ◽  
Lake Ohrid ◽  
Concentration Data ◽  
Last Glacial ◽  
The Last Glacial

Abstract. Lake Ohrid is a site of global importance for palaeoclimate research. This study presents results of diatom analysis of a ca. 136 ka sequence, Co1202, from the northeast of the lake basin. It offers the opportunity to test diatom response across two glacial-interglacial transitions and within the Last Glacial, while setting up taxonomic protocols for future research. The results are outstanding in demonstrating the sensitivity of diatoms to climate change, providing proxy evidence for temperature change marked by glacial-interglacial shifts between the dominant planktonic taxa, Cyclotella fottii and C. ocellata, and exact correlation with geochemical proxies to mark the start of the Last Interglacial at ca. 130 ka. Importantly, diatoms show much stronger evidence in this site for warming during MIS3 than recorded in other productivity-related proxies, peaking at ca. 39 ka, prior to the extreme conditions of the Last Glacial maximum. In the light of the observed patterns, and from the results of analysis of early Holocene sediments from a second core, Lz1120, the lack of a response to Late Glacial and early Holocene warming from ca. 15–7.4 ka suggests the Co1202 sequence may be compromised during this phase. After ca. 7.4 ka, there is evidence for enhanced nutrient enrichment compared to the Last Interglacial, following by a post-Medieval cooling trend. Taxonomically, morphological variability in C. fottii shows no clear trends linked to climate, but an intriguing change in central area morphology occurs after ca. 48.7 ka, coincident with a tephra layer. In contrast, C. ocellata shows morphological variation in the number of ocelli between interglacials, suggesting climatically-forced variation or evolutionary selection pressure. The application of a simple dissolution index does not track preservation quality very effectively, underlining the importance of diatom concentration data in future studies.

Planothidium sheathii, a new monoraphid diatom species from rivers in California, USA

Phytotaxa ◽  
2019 ◽  
Vol 393 (2) ◽  
pp. 131 ◽  
Author(s):  
ROSALINA STANCHEVA
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
New Species ◽  
Morphological Features ◽  
Diatom Species ◽  
Unique Combination ◽  
Valve Morphology ◽  
Valve Margin ◽  
A New Species ◽  
Scanning Electron

Planothidium sheathii sp. nov., a new species from rivers in California, USA, is described based on light and scanning electron microscopy. P. sheathii has broadly lanceolate to elliptic valves with obtusely rounded apices and a unique combination of morphological features, as follows: 1) cavum with broad hood aperture that flares out at the valve margin with open borders fused with the neighboring virgae on SV, 2) multiseriate striae, composed of five to six rows of same sized areolae on both valves, interrupted at valve mantle junction, and 3) areolae groups on valve mantle, with rounded areolae on RV, and rounded and elongated areolae on SV. Valve morphology of P. sheathii is discussed in comparison with similar freshwater taxa, from which the new species is clearly distinct.

Differential Radiodiagnosis of Pseudogynecomastia, Gynecomastia and Breast Cancer in Men

2018 ◽  
pp. 40-49 ◽  
Author(s):  
Н. Воротынцева ◽  
N. Vorotynceva ◽  
И. Мошуров ◽  
I. Moshurov ◽  
М. Ганзя ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Differential Diagnosis ◽  
Male Breast Cancer ◽  
Chest Ct ◽  
Male Breast ◽  
Breast Pathology ◽  
Breast Masses ◽  
X Ray ◽  
Early Stages ◽  
Breast Cancer In Men

Background: With the growth in the equipment clinics with modern diagnostic equipment is increasing the detectability of male breast pathology. In this connection there is a need to determine X-ray characteristics of some forms of the male breast pathology especially breast cancer, because in Russia it stills a problem of detecting male breast cancer at early stages. Purpose: To determine the diagnostic capabilities of chest CT to detect various pathologies of the male breast and to identify the statistically significant radiological symptoms for the differential diagnosis of pseudogynecomastia, gynecomastia and breast cancer. Material and methods: 150 chest CT of men who were screened and treated for the various diseases in the Voronezh Regional Clinical Diagnostic Center and Kursk Regional Clinical Hospital in 2013–2015. X-ray examinations (13 chest CT, 4 PET-CT and 16 mammography) of 31 male patients with breast cancer who were surgically treated at the Voronezh Regional Oncology Hospital in 2010–2016 are presented. Results: The obtained data on the prevalence of pseudogynecomastia and gynecomastia in men who have no presenting complaints about changes in breast. Determined the forms of gynecomastia in this group of patients. Identified radiographic signs that allow a differential diagnosis between gynecomastia and breast cancer. Conclusions: 1. Gynecomastia is a common pathology of the male breast diagnosed by chest CT, and was diagnosed in 68.7 % of patients, who have no presenting complaints about changes in breast. In 96.1 % of cases, gynecomastia had a dendritic form. Diffuse glandular and nodular were rare forms of the disease and were respectively 2.9 % and 1 % of all cases of this disease. 2. Statistically significant signs of malignant character of breast masses in men were: a) the connection of the tumor with skin, areola or nipple in the form of «track» to them, thickening of the skin, «pulling» of the skin or nipple to neoplasm or their immediate invasion by tumor; b) tumor invasion into the pectoralis major muscle; c) presence of microcalcifications in neoplasm; d) presence of pathologically altered axillary lymph nodes. The determination of these radiological symptoms require immediate consultation of an oncologist. 3. Statistically significant signs of the benign character of breast masses in men were: a) bilateral lesion and the symmetry of the changes in the breasts; b) adipose tissue inclusions in breast masses. When detection gynecomastia it needs the consultation of urologist, endocrinologist, oncologist. 4. Awareness of physicians and radiologists on the possibility of developing breast cancer in men and the knowledge of the symptoms of this disease is crucial to detect male breast cancer at early stages and, as a consequence, more successful treatment and a favorable prognosis.

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