scholarly journals Memoirs: On the Nephridiostome of Lumbricus

1932 ◽  
Vol s2-75 (297) ◽  
pp. 165-179
Author(s):  
EDWIN S. GOODRICH
Keyword(s):  
Connective Tissue ◽  
Lumbricus Terrestris ◽  
Coelomic Epithelium ◽  
Lower Lip ◽  
Excretory Organ ◽  
Marginal Cells ◽  
Straightforward Interpretation

The structure of the nephridiostome of Lumbricus terrestris L. is described, including the anatomical relations of canal, gutter, central, and marginal cells and their cytological characters. The extent and relation of the lower lip to other parts are also described. An account of the development of the nephridium is given from the stage when the rudiment still bears a single large ‘funnel-cell’ bulging forwards through the septum into the coelom. The whole nephridiostome (excluding the covering of coelomic epithelium and the connective tissue) is shown to arise from the nephridial rudiment, wholely or partly from that part of the funnel-rudiment which is derived from the ‘funnel-cell’. Upper, lateral, and lower lips are all developed from the funnel rudiment in which the lumen becomes pierced. There is no evidence that the coelomic epithelium contributes any part of the true nephridiostome. The view sometimes put forward that the excretory organ of Lumbricus is a nephromixium is not founded on sound evidence, and is opposed to the simple straightforward interpretation of its morphology which follows most naturally from the facts and a comparison with lower forms.

scholarly journals Mucinous cystadenofiobroma of the ovary

2012 ◽  
Vol 65 (11-12) ◽  
pp. 527-529
Author(s):  
Tamara Boskovic ◽  
Matilda Djolai ◽  
Jelena Ilic ◽  
Mirjana Zivojinov ◽  
Mihaela Mocko-Kacanski ◽  
...  
Keyword(s):  
Case Report ◽  
Connective Tissue ◽  
Histological Examination ◽  
Malignant Tumors ◽  
Correct Diagnosis ◽  
Single Layer ◽  
Coelomic Epithelium ◽  
Rare Form ◽  
Cystic Formation ◽  
Stromal Component

Introduction. Cystadenofibromas are tumors of the ovary which originate from the surface coelomic epithelium. Benign mucinous cystadenofibroma is a very rare form of these tumors, which consists of dominant stromal component of the connective tissue and one or more cysts. Case report. The case of a 62-year-old female with tumor of right ovary is reported in this paper. Histologically, tumor of the ovary had multilocular cystic formation, lined by a single-layer of mucoproductive cylindrical epithelium - endocervical type. In one area of tumor, the stromal component was abundant and made from partially hyalinised dense connective tissue. Mucinous cystadenofibroma was diagnosed on the basis of histological examination. Since the mucinous type of cystadenofibroma or adenofibroma is rare, this case has been chosen to be presented. Conclusion. Mucinous cystadenofibromas are differentially- diagnostically very similar to different malignant tumors and it is extremely important to make correct diagnosis of these neoplasms.

scholarly journals Memoirs: The Gregarines of Cucumaria: Lithocystis Minchinii Woodc. and Lithocystis Cucumariae n.sp

1929 ◽  
Vol s2-73 (290) ◽  
pp. 275-287
Author(s):  
HELEN PIXELL GOODRICH
Keyword(s):  
Connective Tissue ◽  
The Other ◽  
Coelomic Epithelium ◽  
Short Tail ◽  
Respiratory Trees

Of two neogamous gregarines infecting C. saxicola and hitherto considered to be one and the same species, one--L. cucumariae n.sp.--was restricted to the respiratory trees and had spores with long flattened tails. The other--L.minchinii Woodc.--was enclosed throughout most of its life in a cup-like outgrowth of the host's coelomic epithelium and connective tissue, and had spores with peculiar episporal processes including a short tail.

A Cytological Study of the Metabolism of Iron in the Leech, Glossiphonia complanata

1955 ◽  
Vol s3-96 (34) ◽  
pp. 169-172
Author(s):  
S. BRADBURY
Keyword(s):  
Epithelial Cells ◽  
Connective Tissue ◽  
Intestinal Epithelium ◽  
Iron Content ◽  
Cytological Study ◽  
The Body ◽  
Gut Content ◽  
Coelomic Epithelium ◽  
Planorbis Corneus ◽  
Limnaea Stagnalis

Glossiphonia complanata is found to contain iron in the form of haemosiderin in the gut-content, in the cells of the intestinal epithelium, the coelomic epithelium, the connective tissue, and the epidermis. The haemosiderin is largely in granular deposits. The amount of iron in the body is reduced on starvation; granular deposits do not now occur, but a positive reaction is still given by the ground cytoplasm of connective tissue and epidermal cells. Iron is absorbed in limited amounts when the animal is kept in water artificially enriched with this element. It appears to be concentrated in the coelomic epithelial cells and in the connective tissue. Feeding with Planorbis corneus causes significant increase in the iron content of the body of the leech; no such increase is apparent after feeding with Limnaea stagnalis.

scholarly journals Caliber-Persistent Artery

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Sabrina Araújo Pinho Costa ◽  
Marcelo Martinson Ruiz ◽  
Shajadi Pardo Kaba ◽  
Giovanna Piacenza Florezi ◽  
Celso Augusto Lemos Júnior ◽  
...  
Keyword(s):  
High Resolution ◽  
Connective Tissue ◽  
Older People ◽  
Doppler Ultrasound ◽  
Male Patient ◽  
No Reduction ◽  
Vascular Anomaly ◽  
Lower Lip ◽  
Arterial Branch

Caliber-persistent artery (CPLA) of the lip is a common vascular anomaly in which a main arterial branch extends to the surface of the mucous tissue with no reduction in its diameter. It usually manifests as pulsatile papule, is easily misdiagnosed, and is observed more frequently among older people, suggesting that its development may involve a degenerative process associated with aging; CPLA is also characterized by the loss of tone of the adjacent supporting connective tissue. Although the diagnosis is clinical, high-resolution Doppler ultrasound is a useful noninvasive tool for evaluating the lesion. This report describes the case of a 58-year-old male patient who complained of a lesion of the lower lip with bleeding and recurrent ulceration. The patient was successfully treated in our hospital after a diagnosis of CPLA and is currently undergoing a clinical outpatient follow-up with no complaints.

scholarly journals A FINE STRUCTURAL ANALYSIS OF THE EPIDERMIS OF THE EARTHWORM, LUMBRICUS TERRESTRIS L

1966 ◽  
Vol 28 (1) ◽  
pp. 95-108 ◽  
Author(s):  
Richard E. Coggeshall
Keyword(s):  
Plasma Membrane ◽  
Structural Analysis ◽  
Connective Tissue ◽  
Tight Junction ◽  
Outer Layer ◽  
Special Interest ◽  
Fibrous Tissue ◽  
Lumbricus Terrestris ◽  
Epithelial Origin ◽  
Earthworm Lumbricus

A fine structural analysis of the cuticle, epidermal epithelium, and underlying fibrous tissue of the earthworm is presented. The extreme scarcity or absence of fibroblasts in this animal is pointed out. This finding is further evidence for the epithelial origin of the cuticular fibers, and suggests that at least some of the collagenous connective tissue fibers in the interior of this animal are epithelial in origin. The junctional specializations that unite epithelial cells in the epidermis and intestine are described. Of special interest is the fact that the septate desmosome rather than the tight junction is found in these epithelia. It is shown that the septa are not extensions of the plasma membrane across the intercellular gap. Finally, the nature of the small ellipsoidal bodies that are embedded in the outer layer of the cuticle is discussed.

scholarly journals Traumatic neuroma of mental nerve following lower lip mucocele excision

2016 ◽  
Vol 63 (2) ◽  
pp. 91-95
Author(s):  
Jelena Stepić ◽  
Marko Pejović ◽  
Miroslav Dragović ◽  
Branko Dožić ◽  
Radojica Dražić ◽  
...  
Keyword(s):  
Salivary Gland ◽  
Connective Tissue ◽  
Peripheral Nerve ◽  
Histopathological Examination ◽  
Minor Salivary Gland ◽  
Mental Nerve ◽  
Lower Lip ◽  
Traumatic Neuroma ◽  
Reactive Hyperplasia ◽  
Connective Tissue Stroma

Abstract Traumatic neuroma represents reactive hyperplasia of irregularly positioned Schwann neurofibril cells and connective tissue - stroma that develop as a result of unsuccessful attempts to regenerate peripheral nerve after injury. This paper presents the case of a patient with painless traumatic neuroma of the lower lip formed in the same place where he previously had surgically removed salivary cyst of minor salivary gland - mucocele. Histopathological examination confirmed the diagnosis of traumatic neuroma.

Mucocele: Two Case Reports

2007 ◽  
Vol 1 (3) ◽  
pp. 56-58 ◽  
Author(s):  
Bhavna Gupta ◽  
Mohit Gupta ◽  
Rajesh Anegundi ◽  
P. Sudha
Keyword(s):  
Salivary Gland ◽  
Connective Tissue ◽  
Case Reports ◽  
Minor Salivary Gland ◽  
Fibrous Connective Tissue ◽  
Main Duct ◽  
Lower Lip ◽  
Floor Of Mouth ◽  
Traumatic Origin ◽  
A Minor

ABSTRACT The Mucocele or Mucus retention phenomenon is a salivary gland lesion of traumatic origin, formed when the main duct of a minor salivary gland is torn with subsequent extravasation of the mucus into the fibrous connective tissue so that a cyst like cavity is produced. The wall of this cavity is formed by compressed bundles of collagen fibrils and it is filled with mucin. Mucoceles are known to occur most commonly on the lower lip, followed by the floor of mouth and buccal mucosa being the next most frequent sites. This paper reviews the Mucocele and presents two case reports.

scholarly journals A floppy infant without lingual frenulum and kyphoscoliosis: Ehlers Danlos syndrome case report

2021 ◽  
Vol 47 (1) ◽  
Author(s):  
Rosaura Conti ◽  
Chiara Zanchi ◽  
Egidio Barbi
Keyword(s):  
Connective Tissue ◽  
Muscular Atrophy ◽  
Neuromuscular Disorders ◽  
Joint Hypermobility ◽  
Mechanical Instability ◽  
Connective Tissue Disorders ◽  
Ehlers Danlos Syndrome ◽  
Lower Lip ◽  
Floppy Infant ◽  
Danlos Syndrome

Abstract Background Ehlers-Danlos syndrome (EDS) represents a group of connective tissue disorders characterized by the fragility of the soft connective tissues resulting in widespread skin, ligament, joint, blood vessel and internal organ involvement. The clinical spectrum is highly variable in terms of clinical features, complications, severity, biochemical characteristics and genes mutations. The kyphoscoliotic type EDS (EDS VIA) is a rare variant of the disease, with an incidence of 1:100.000 live births. EDS VIA presents at birth as severe muscular hypotonia, early onset of progressive kyphoscoliosis, marked hyperelasticity and fragility of the skin with abnormal scarring, severe joint hypermobility, luxations and osteopenia without a tendency to fractures. This condition is due to a mutation in the PLOD1 gene, and less commonly in FKBP14 gene, which results in the erroneous development of collagen molecules with consequent mechanical instability of the affected tissue. Case presentation A female newborn, found to be floppy at birth, presented a remarkable physical examination for joint hypermobility, muscle weakness, hyperelastic skin, a slight curve of the spine, the absence of the inferior labial and lingual frenulum. Due to severe hypotonia, neuromuscular disorders such as Spinal Muscular Atrophy (SMA), genetic diseases such as Prader Willi syndrome (PWS), myopathies and connective tissue disorders were considered in the differential diagnosis. Targeted gene sequencing were performed for SMN1, PLOD1, FKBP14, COL6A1, COL6A2, COL6A3. The urinary lysyl and hydroxy-lysyl pyridinoline ratio was diagnostic before discovering the homozygous duplication in the PLOD1 gene, which confirmed kyphoscoliotic EDS diagnosis. Conclusion In front of a floppy infant, a large variety of disorders should be considered, including some connective diseases. The presence at the birth of kyphoscoliosis, associated with joint hypermobility and the absence of the lingual and lower lip frenulum, should suggest an EDS.

scholarly journals Fibroma: case report

2016 ◽  
Vol 5 (4) ◽  
Author(s):  
Natalia Aline Ricci Sabino ◽  
Ellen Cristina Gaetti-Jardim ◽  
Elerson Gaetti-Jardim Jr ◽  
Rosana Leite De Melo
Keyword(s):  
Connective Tissue ◽  
Oral Mucosa ◽  
Surgical Excision ◽  
Lower Lip ◽  
Trauma History ◽  
Adjacent Mucosa ◽  
Large Patient ◽  
Irritation Fibroma ◽  
Reactive Hyperplasia ◽  
Dental Crowding

Fibroma is a common injury in the oral mucosa, considered a reactive hyperplasia of connective tissue in response to constant trauma to the oral mucosa is dental order or not, is a noninfectious lesion benign fibrous connective tissue, with a predilection for females and between the fourth and sixth decades of life and are usually situated in the inner portion of the lower lip, tongue and buccal mucosa. They are usually nodular, firm palpation, asymptomatic and coloring similar to the adjacent mucosa, sessile base, smooth surface. Routine treatment is conservative surgical excision. This paper reports a clinical case of irritation fibroma in the oral mucosa of large patient ratios male, young and constant trauma history in the region, as well as dental crowding near pathology. Such fibroma was treated surgically and with remission of awareness of the deleterious habits oral mucosa to prevent the recurrence of the lesion.Descriptors: Fibroma; Diagnosis; Therapeutics.

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