A case of vascular leiomyoma of the larynx

1994 ◽  
Vol 108 (7) ◽  
pp. 593-595 ◽  
Author(s):  
K. Hirakawa ◽  
Y. Harada ◽  
T. Tatsukawa ◽  
A. Nagasawa ◽  
M. Fujii
Keyword(s):  
Histological Examination ◽  
Supine Position ◽  
Direct Laryngoscopy ◽  
Squamous Epithelium ◽  
Complete Removal ◽  
Normal Mucosa ◽  
General Anaesthetic ◽  
Vascular Leiomyoma ◽  
Chief Complaints ◽  
Stratified Squamous Epithelium

AbstractWe present a 68-year-old woman with a vascular leiomyoma of the larynx, a benign tumour that rarely involves that organ. Chief complaints were a feeling of a narrowing of the pharynx and difficulty in breathing in the supine position. A spherical tumour measuring 1.5 cm and covered with normal mucosa was found avthe margin of her epiglottis. The patient was administered a general anaesthetic and the tumour was successfully removed via direct laryngoscopy. Histological examination revealed that the tumour lay beneath a layer of stratified squamous epithelium and was encased in a welldefined fibrous capsule. The tumour parenchyma was composed of proliferated fibres that consisted of elongated cells, surrounded by an abundance of blood vessels. Its complete removal is the treatment of choice with care taken to avoid profuse bleeding. Recurrence is rare.

scholarly journals Tuberculosis of the Testis: A case Report

2012 ◽  
Vol 5 ◽  
pp. CCRep.S9451 ◽  
Author(s):  
A.I. Shugaba ◽  
A.M. Rabiu ◽  
C. Uzokwe ◽  
R.M. Matthew
Keyword(s):  
Case Report ◽  
Blood Cell ◽  
Sedimentation Rate ◽  
Squamous Epithelium ◽  
Laboratory Data ◽  
Testicular Tumor ◽  
Erythrocyte Sedimentation ◽  
Chief Complaints ◽  
Stratified Squamous Epithelium ◽  
Tuberculous Granuloma

A 45-year-old man visited our clinic with a painless swelling of the left scrotum and an ulcer as chief complaints. A hard and indurated mass was palpable with ulcerating foci that were proximal and distal, measuring 3 × 2 cm and 2 × 1 cm respectively and about 2 cm apart. Laboratory data were normal except for an elevated erythrocyte sedimentation rate (ESR), and white blood cell (WBC) differential showed neutropenia and lymphocytosis. A diagnosis of left testicular tumor was made and the patient had a left orchidectomy with fistulectomy. Histopathology results showed a stratified squamous epithelium with tuberculous granuloma and necrotic caseation. Patient is currently on anti-tubercular medication. The rarity of this condition makes these findings important to report.

scholarly journals Microscopic Structure of the Epithelium Lining the Epiglottis in Wistar Rats

2018 ◽  
Vol 75 (1) ◽  
pp. 5
Author(s):  
Vasile RUS ◽  
Aura Ștefania PARDI ◽  
Bianca MATOSZ ◽  
Flavia RUXANDA
Keyword(s):  
Histological Examination ◽  
Wistar Rats ◽  
Squamous Epithelium ◽  
Respiratory Epithelium ◽  
Microscopic Structure ◽  
Stratified Squamous Epithelium ◽  
Keratin Layer

The aim of this study was to investigate the type of the epithelium present on the epiglottis surface, through histological examination. The epithelium lining the pharyngeal side of epiglottis is keratinized stratified squamous. The thickness of the keratin layer is different from one subject to another. Usually the keratin layer extends to the apex of the epiglottis, but in some of the animals taken into study, the keratin layer extends to the apical third of the laryngeal side of epiglottis. The epithelium lining the laryngeal side is different. In most of the epiglottises examined, the surface is lined by non-keratinized stratified squamous epithelium in the apical third. The rest of the laryngeal side of the epiglottis is lined by respiratory epithelium type. In one subject, the entire laryngeal surface is lined by a non-keratinized stratified squamous epithelium. Our study highlights that the pharyngeal side of epiglottis is lined by a keratinized stratified squamous epithelium, whereas on the laryngeal side, the epithelium in the apical third is non-keratinized stratified squamous and at the rest of the surface the epithelium is pseudostratified.

Localized Juvenile Spongiotic Gingival Hyperplasia: Report of Two Cases

2017 ◽  
Vol 41 (3) ◽  
pp. 228-231 ◽  
Author(s):  
Eleni-Marina Kalogirou ◽  
Konstantina Chatzidimitriou ◽  
Konstantinos I. Tosios ◽  
Evangelia P. Piperi ◽  
Alexandra Sklavounou
Keyword(s):  
Histological Examination ◽  
Squamous Epithelium ◽  
Inflammatory Cells ◽  
Final Diagnosis ◽  
Pediatric Dentistry ◽  
Gingival Hyperplasia ◽  
Gingival Epithelium ◽  
Stratified Squamous Epithelium ◽  
Maxillary Lateral Incisor ◽  
Shed Light

Objective: Localized juvenile spongiotic gingival hyperplasia (LJSGH) is a painless gingival swelling that histologically exhibits hyperplasia of the non-keratinized stratified squamous epithelium, intercellular edema and spongiosis of the spinus layer, and exocytosis of inflammatory cells. LJSGH pathogenesis remains to be elucidated, while a possible origin from the gingival sulcus epithelium is nowadays proposed. Study design: We report two cases of LJSGH with immunohistochemical evaluation of cytokeratins (CKs) 18 and 19. Results: Both cases concerned 12-year-old boys, who presented with a well-circumscribed bright red pedunculated papillary swelling on the marginal gingiva of the left maxillary lateral incisor. With the provisional diagnosis of LJSGH, the lesions were excised under local anesthesia and histological examination supported the final diagnosis of LJSGH. In both cases, the lesional epithelium showed intense and mild positivity for CK19 and CK18, respectively, while the adjacent normal gingival epithelium expressed CK19, but not CK18, only in the basal cell layer. The postoperative course was uneventful in both patients and no recurrence has been reported. Conclusion: LJSGH is a recently introduced entity that is worth attention in the clinical pediatric dentistry. Clinical and histological examination is required for the final diagnosis, while immunohistochemistry has shed light to LJSGH pathogenesis.

Junction of the Epithelium and Lamina Propria of the Bovine Rumen Mucosa

1967 ◽  
Vol 25 ◽  
pp. 68-69
Author(s):  
Al W. Stinson
Keyword(s):  
Osmium Tetroxide ◽  
Squamous Epithelium ◽  
Short Chain Fatty Acids ◽  
Chloride Ions ◽  
Fermentation Products ◽  
Ruminant Species ◽  
Protective Shield ◽  
Stratified Squamous Epithelium ◽  
Lead Hydroxide ◽  
Acetic Acids

The stratified squamous epithelium which lines the ruminal compartment of the bovine stomach performs at least three important functions. (1) The upper keratinized layer forms a protective shield against the rough, fibrous, constantly moving ingesta. (2) It is an organ of absorption since a number of substances are absorbed directly through the epithelium. These include short chain fatty acids, potassium, sodium and chloride ions, water, and many others. (3) The cells of the deeper layers metabolize butyric acid and to a lesser extent propionic and acetic acids which are the fermentation products of rumen digestion. Because of the functional characteristics, this epithelium is important in the digestive process of ruminant species which convert large quantities of rough, fibrous feed into energy.Tissue used in this study was obtained by biopsy through a rumen fistula from clinically healthy, yearling holstein steers. The animals had been fed a typical diet of hay and grain and the ruminal papillae were fully developed. The tissue was immediately immersed in 1% osmium tetroxide buffered to a pH of 7.4 and fixed for 2 hrs. The tissue blocks were embedded in Vestapol-W, sectioned with a Porter-Blum microtome with glass knives and stained with lead hydroxide. The sections were studied with an RCA EMU 3F electron microscope.

Note on the Transformation of Ciliated into Stratified Squamous Epithelium as a result of the Application of Friction

1890 ◽  
Vol 16 ◽  
pp. 119-120 ◽  
Author(s):  
John Berry Haycraft ◽  
E. W. Carlier
Keyword(s):  
Mucous Membrane ◽  
Squamous Epithelium ◽  
The Other ◽  
Ciliated Epithelium ◽  
Deep Groove ◽  
Stratified Squamous Epithelium ◽  
Trachealis Muscle

(Abstract.)In man, in the rabbit, and some other animals the trachea is built up of a series of cartilaginous rings incomplete behind; the rings being completed in this position by the trachealis muscle.The mucous membrane forms a smooth cylindrical lining for the whole tube, and is covered by a ciliated epithelium.In the cat and dog the cartilage rings completely encircle the trachea, and overlap posteriorly, and the trachealis muscle, which is well developed, is placed outside the cartilage, and has a powerful action in varying the diameter of the tube.When this muscle contracts the overlapping ends of the cartilage ride one upon another, and the projecting ends form a vertical ridge down the inside of the trachea, which can be readily seen on slitting the organ open. This ridge is separated by a deep groove from the other end of the plate.

Zimmermann-Laband Syndrome in an Infant with an Atypical Histologic Finding

2005 ◽  
Vol 8 (6) ◽  
pp. 654-657 ◽  
Author(s):  
Mehmet Emre Atabek ◽  
Ozgur Pirgon ◽  
Ahmet Sert ◽  
Hatice Toy
Keyword(s):  
Squamous Epithelium ◽  
Male Infant ◽  
Histologic Finding ◽  
Histopathologic Finding ◽  
Stratified Squamous Epithelium ◽  
Hands And Feet ◽  
Excised Tissue

Zimmermann-Laband syndrome is an inherited disorder that is characterized by abnormalities of the head, face, hands, and feet. Most children with this disorder have generalized hypertrichosis, large gingivae, and hypoplasia of the fingernails and toenails. We report a male infant who exhibited typical features of Zimmermann-Laband syndrome with an unusual histopathologic finding. Excised tissue from the infant's gingivae showed papillary projections that were composed of hyperplastic stratified squamous epithelium with different amounts of keratinization.

scholarly journals Histological analysis of the tongue, esophagus and crop of Southern Carcará (Polyborus plancus)

2021 ◽  
Vol 10 (2) ◽  
pp. e21410212439
Author(s):  
Vanessa Sobue Franzo ◽  
Leiny Paula de Oliveira ◽  
Ana Carolina Pôssas Viana ◽  
Adriano Tony Ramos ◽  
Jéssica Fernanda Bertolino ◽  
...  
Keyword(s):  
Digestive System ◽  
Histological Analysis ◽  
Squamous Epithelium ◽  
Eating Habits ◽  
Histological Study ◽  
Pekin Ducks ◽  
The Family ◽  
Body Weights ◽  
Stratified Squamous Epithelium ◽  
Hematoxylin Eosin

The Southern Caracara is a bird of prey, of the family Falconidae, inhabits all the Brazilian territory, they are omnivorous birds adapted for hunting. The digestive system of the predators presents differences in their morphology due to their eating habits. Knowing the importance of the gastrointestinal system, this study aims to carry out a histological study of the tongue, esophagus and the crop of Polyborus plancus. For this purpose, eight avian of both sexes, with different body weights and ages were used, they were euthanized and the organs were collected, fixed, dehydrated and stained with hematoxylin-eosin. It was noted that the tongue has stratified squamous epithelium with mucous glands and with different degrees of keratinization. The esophagus and crop have four well developed muscle layers and mucous glands. Additionally, in the crop there is presence of an adventitious layer that consists of loose connective tissue. We conclude that the tongue, the esophagus and the crop of the Southern Caracara have similar histological organization of several birds like the Pekin Ducks, ostriches, domestic chicken and partridges.

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