scholarly journals A Case of Cutaneous Purpureocillium lilacinum Infection

2021 ◽  
pp. 8-12
Author(s):  
Eui-Sung Jung ◽  
Sang-Kyung Lee ◽  
Il-Jae Lee ◽  
Jin Park ◽  
Seok-Kweon Yun ◽  
...  
Keyword(s):  
Histopathological Examination ◽  
Periodic Acid ◽  
Blue Staining ◽  
Medical Mycology ◽  
Cutaneous Infection ◽  
Periodic Acid Schiff ◽  
Korean Society ◽  
Purpureocillium Lilacinum ◽  
History Of ◽  
Oral Itraconazole

Purpureocillium lilacinum (formerly Paecilomyces lilacinus) is a saprophytic fungus found in the soil and decaying vegetation and is rarely pathogenic to humans. To our knowledge, only six cases of cutaneous infection caused by P. lilacinum have been reported in journals published by the Korean Dermatological Association and the Korean Society for Medical Mycology. Here, we report the case of a patient with localized cutaneous infection caused by P. lilacinum. An 84-year-old woman presented with a 2-month history of multiple plaques with surrounding erythematous patches on her left forearm and dorsum of the hand. Histopathological examination showed suppurative inflammation accompanied by fungal elements in the dermis. Furthermore, periodic acid-Schiff and methenamine silver staining showed revealed fungal elements. The sub-cultured fungus of the isolate revealed velvety pink colonies that were yellowish-tan on the reverse side, and lactophenol cotton blue staining showed flask-shaped phialides. The DNA sequence from the colony was identical to that of P. lilacinum. The patient was treated with oral itraconazole (200 mg/d) for 6 weeks that achieved significant improvement in the patient's condition.

scholarly journals A Case of Cutaneous Purpureocillium lilacinum Infection Looking like Psoriasis

2021 ◽  
pp. 72-76
Author(s):  
Nam Gyoung Ha ◽  
Kyung Duck Park ◽  
Yong Jun Bang ◽  
Jae Bok Jun ◽  
Jong Soo Choi ◽  
...  
Keyword(s):  
Histopathological Examination ◽  
Its Region ◽  
Skin Lesions ◽  
Blue Staining ◽  
Rrna Gene ◽  
Fungal Culture ◽  
Environmental Distribution ◽  
Purpureocillium Lilacinum ◽  
Light Yellow ◽  
Oral Itraconazole

Purpureocillium lilacinum is a saprophytic fungus with a ubiquitous environmental distribution, and it can be detected in soil samples and decaying materials worldwide. It has been reported as an emerging pathogen in both immunocompromised and immunocompetent patients, showing various cutaneous presentations. Herein, we report a case of a patient with a localized cutaneous P. lilacinum infection, which resembles the skin lesions of psoriasis. A 72-year-old female was presented with a peripherally spreading, well-demarcated, asymptomatic, scaly, erythematous patch on her forehead for several months. Histopathological examination showed pinkish septated fungal elements and mixed inflammatory and granulomatous infiltrates in the dermis. Furthermore, a fungal culture on potato dextrose agar showed gray, velvety colonies with light yellow background after being subcultured. Phialides with chains of oval conidia were observed on lactophenol cotton blue staining. The ITS region of rRNA gene sequence obtained from the colony was identical to that of Purpureocillium lilacinum. The lesion was resolved with oral itraconazole (200 mg/day) after four months of treatment.

scholarly journals Escherichia coli-induced granulomatous colitis in a cat

2019 ◽  
Vol 5 (1) ◽  
pp. 205511691983653
Author(s):  
Isao Matsumoto ◽  
Ko Nakashima ◽  
Hajime Morita ◽  
Koichi Kasahara ◽  
Osamu Kataoka ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Bacterial Culture ◽  
Histopathological Examination ◽  
Periodic Acid ◽  
Clinical Signs ◽  
Endoscopic Examination ◽  
Granulomatous Colitis ◽  
Periodic Acid Schiff ◽  
E Coli ◽  
History Of

Case summary A 10-year-old castrated male domestic shorthair cat presented with a 6 month history of diarrhoea that responded poorly to medical treatment. Ultrasonography revealed moderate thickening of the colonic wall (4.8 mm) and right colic and jejunal lymphadenomegalies. Endoscopic examination revealed partial circumferential narrowing of the transverse colon and friable colonic mucosa with multiple haemorrhagic regions. Histopathological and immunohistochemical examinations revealed a large number of Escherichia coli phagocytosed by periodic acid–Schiff-positive macrophages. Bacterial culture also yielded enrofloxacin-sensitive E coli. The cat was initially treated with prednisolone, which resulted in little improvement. Following histopathological examination and bacterial culture, treatment with enrofloxacin was commenced. Antibacterial therapy resulted in remission of the diarrhoea and an increase in body weight within 14 days. Relevance and novel information Granulomatous colitis (GC) or histiocytic ulcerative colitis has been rarely described in cats. There has only been one previously published case study involving a cat, and the aetiology remains largely unknown. The current article describes the regression of E coli-related GC following antibacterial treatment in a cat. Clinical signs, histopathological appearance and response to enrofloxacin were similar to those in canine GC. The current findings suggest that E coli also plays an important role in the development of feline GC.

Swim bladder mycosis in farmed rainbow trout Oncorhynchus mykiss caused by Phoma herbarum and experimental verification of pathogenicity

2020 ◽  
Vol 138 ◽  
pp. 237-246 ◽  
Author(s):  
J Řehulka ◽  
A Kubátová ◽  
V Hubka
Keyword(s):  
Rainbow Trout ◽  
Histopathological Examination ◽  
Periodic Acid ◽  
Bladder Wall ◽  
Swim Bladder ◽  
Cell Reactivity ◽  
Periodic Acid Schiff ◽  
Posterior Portion ◽  
Hepatic Congestion ◽  
Phoma Herbarum

In this study, spontaneous swim bladder mycosis was documented in a farmed fingerling rainbow trout from a raceway culture system. At necropsy, the gross lesions included a thickened swim bladder wall, and the posterior portion of the swim bladder was enlarged due to massive hyperplasia of muscle. A microscopic wet mount examination of the swim bladder contents revealed abundant septate hyphae, and histopathological examination showed periodic acid-Schiff-positive mycelia in the lumen and wall of the swim bladder. Histopathological examination of the thickened posterior swim bladder revealed muscle hyperplasia with expansion by inflammatory cells. The causative agent was identified as Phoma herbarum through morphological analysis and DNA sequencing. The disease was reproduced in rainbow trout fingerlings using intraperitoneal injection of a spore suspension. Necropsy in dead and moribund fish revealed extensive congestion and haemorrhages in the serosa of visceral organs and in liver and abdominal serosanguinous fluid. Histopathological examination showed severe hepatic congestion, sinusoidal dilatation, Kupffer cell reactivity, leukostasis and degenerative changes. Fungi were disseminated to the liver, pyloric caeca, kidney, spleen and heart. Although infections caused by Phoma spp. have been repeatedly reported in fish, species identification has been hampered by extensive taxonomic changes. The results of this study confirmed the pathogenicity of P. herbarum in salmonids by using a reliably identified strain during experimental fish infection and provides new knowledge regarding the course of infection.

scholarly journals Candida Chorioamnionitis in Mothers with Gestational Diabetes Mellitus: A Report of Two Cases

2021 ◽  
Vol 18 (14) ◽  
pp. 7450
Author(s):  
Elia Shazniza Shaaya ◽  
Siti Atiqah Abdul Halim ◽  
Ka Wen Leong ◽  
Kevin Boon Ping Ku ◽  
Pei Shan Lim ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Umbilical Cord ◽  
Neonatal Death ◽  
Periodic Acid ◽  
Careful Examination ◽  
Periodic Acid Schiff ◽  
History Of ◽  
Methenamine Silver

Background:Candida chorioamnionitis is rarely encountered, even though vulvovaginal candidiasis incidence is about 15%. Interestingly, it has characteristic gross and histological findings on the umbilical cord that are not to be missed. Case Report: We report two cases of Candida chorioamnionitis with presence of multiple yellowish and red spots of the surface of the umbilical cord. Microscopically, these consist of microabscesses with evidence of fungal yeasts and pseudohyphae. The yeasts and pseudohyphae were highlighted by periodic acid– Schiff and Grocott methenamine silver histochemical stains. Both cases were associated with a history of gestational diabetes mellitus. Discussion: Peripheral funisitis is a characteristic feature of Candida chorioamnionitis. It is associated with high risk of adverse perinatal and neonatal outcomes, such as preterm delivery, stillbirth and neonatal death. We recommend careful examination of the umbilical cord of mothers with gestational diabetes mellitus.

Dematiaceous fungal invasion of a bandage contact lens

2021 ◽  
Vol 14 (2) ◽  
pp. e240029
Author(s):  
Anirban Dutta ◽  
Sujata Das ◽  
Himanshu Sekhara Behera ◽  
Ruchi Mittal
Keyword(s):  
Contact Lens ◽  
Periodic Acid ◽  
Significant Risk ◽  
Dematiaceous Fungi ◽  
Periodic Acid Schiff ◽  
Bandage Contact Lens ◽  
History Of ◽  
Eye Examination ◽  
The Right

A 61-year-old man presented with a 1-month history of reduced vision, redness and pain in the right eye. Examination revealed a bandage contact lens (BCL) in situ with diffuse, pigmented deposits. On removal, the underlying cornea was found to be clear. He had been prescribed the BCL 6 months ago following a deep-seated corneal foreign body removal and was unable to follow-up subsequently.The BCL was sent for microbiological and histopathological evaluation. The culture revealed growth of Cladosporium spp, a dematiaceous fungi. Periodic acid–Schiff staining revealed infiltration of pigmented fungal filaments into the substance of the BCL.While contact lens deposits are a frequent finding, fungal deposits are seldom noted. Irregular follow-up and improper lens maintenance are significant risk factors for the same. Early identification and subsequent removal of the lens is vital to prevent infection of the underlying ocular structures.

Effects of parathyroid extract. II: changes preceding renal calcification

1962 ◽  
Vol 203 (4) ◽  
pp. 676-680 ◽  
Author(s):  
Reagan H. Bradford ◽  
R. Palmer Howard ◽  
Walter Joel ◽  
Jerry Puls ◽  
M. R. Shetlar
Keyword(s):  
Serum Albumin ◽  
Periodic Acid ◽  
Blue Staining ◽  
Alcian Blue Staining ◽  
Periodic Acid Schiff ◽  
Protein Ratio ◽  
Parathyroid Extract ◽  
Staining Techniques ◽  
Consistent Increase ◽  
Hematoxylin And Eosin

Parathyroid extract, a total of 860 units, has been administered to rats in small, progressively increasing doses over a period of 12 days. The effects on serum protein, total glycoprotein, glycoprotein/protein ratio, calcium, individual protein and glycoprotein fractions, and renal calcification have been presented. Kidney sections from each rat were studied by histochemical techniques for calcification, neutral polysaccharide, and acid mucopolysaccharide. The serum total glycoprotein, glycoprotein/protein ratio, and calcium were found to be elevated. The serum albumin was decreased, whereas the globulin fractions were essentially unchanged. The globulin glycoprotein hexose, mostly α1-globulin, was increased; albumin glycoprotein hexose showed a somewhat less consistent increase. A "precalcification" periodic acid-Schiff-staining intraluminal material was demonstrated in the kidney after parathyroid extract treatment for 4 days. This was followed approximately 2 days later by Alcian blue-staining material and calcification demonstrable by hematoxylin and eosin and by Kóssa staining techniques. This has been interpreted as suggesting a glycoprotein-containing lesion which precedes calcification.

A novel method for the visualization of the in situ mucus layer in rat and man

1998 ◽  
Vol 95 (1) ◽  
pp. 97-106 ◽  
Author(s):  
NICOLA JORDAN ◽  
JULIA NEWTON ◽  
JEFFREY PEARSON ◽  
ADRIAN ALLEN
Keyword(s):  
Gastric Mucosa ◽  
Alcian Blue ◽  
Periodic Acid ◽  
Blue Staining ◽  
Mucus Layer ◽  
Gastric Mucus ◽  
Periodic Acid Schiff ◽  
Novel Method ◽  
The Mean ◽  
Thickness Measurements

1.The observed thickness of the gastric mucus barrier varies widely, even appearing discontinuous, depending on the methods used. Here we describe the development and application of a modified periodic acid Schiff/Alcian Blue staining technique for use on cryostat sections of gastric mucosa. This technique for the first time enables the preservation and visualization of the full thickness of the adherent gastric mucus layer and the underlying mucosa. 2.In designing this novel method we have selected those procedures which would result in the least alteration to the mucus layer. The methods used were snap freezing, cryostat sectioning of the whole stomach followed by brief ethanol pretreatment (10 min in 100% ethanol), a prolonged staining with periodic acid Schiff/Alcian Blue (15 min and 2.5 h respectively), a gentle post-fixation (45 min paraformaldehyde vapour at 37 °C) and the use of a water-soluble mountant. 3.A continuous, adherent mucus layer was observed over the surface of the rat gastric mucosa (periodic acid Schiff/Alcian Blue stained) and human gastric antral biopsies (periodic acid Schiff stained). In the rat the mean (S.D.) mucus thickness measurements along the antrum to oesophageal axis (which was divided histologically into four regions, A to D) were: A, 166 (47) μm; B, 179 (48) μm; C, 184 (50) μm; D (the non-glandular stratified epithelium at the top of the stomach), Absent. In human gastric antral biopsies the mean (S.D.) mucus thickness was 144 (52) μm. 4.This new technique has enabled the visualization and precise measurement of thickness of the gastric mucus layer in rat and man. The adherent gastric mucus layer was observed to be continuous in the rat glandular stomach and human antrum. In validation experiments in rat the mean mucus thickness measurements were found to be twice those measured by conventional histological techniques, in which the mucus layer appeared discontinuous and patchy. However, they were within the range of thickness values seen in unfixed tissues and in the rat in vivo preparation.

scholarly journals Non-Mucinous Lepidic Predominant Adenocarcinoma Presenting with Extensive Aerogenous Spread

Rare Tumors ◽  
2016 ◽  
Vol 8 (4) ◽  
pp. 169-172 ◽  
Author(s):  
Yusuke Takanashi ◽  
Shogo Tajima ◽  
Masaru Tsukui ◽  
Kazuya Shinmura ◽  
Takamitsu Hayakawa ◽  
...  
Keyword(s):  
Cancer Progression ◽  
Histopathological Examination ◽  
Periodic Acid ◽  
Lower Lobe ◽  
Poor Response ◽  
Clara Cells ◽  
Invasive Adenocarcinoma ◽  
Rare Presentation ◽  
Periodic Acid Schiff ◽  
The Right

An extremely rare case of non-mucinous lepidic-predominant invasive adenocarcinoma (LPA) showing extensive aerogenous spread with a pneumonic presentation is reported. A 73-year-old woman was referred to our hospital because of an infiltrative shadow on chest xray. Chest computed tomography revealed extensive ground glass opacities in the right lower lobe, which was accompanied by infiltrative shadow with a pneumonic presentation. Invasive mucinous adenocarcinoma was presumed, and a partial resection of the right lower lobe was done. Histopathological examination revealed lepidic growth-predominant invasive adenocarcinoma with Clara type tumor cells, and there were innumerable aerogenous metastases also consisting of Clara cells. Because Alcian Blue and periodic acid-Schiff staining disclosed no mucus, the tumor was diagnosed as a non-mucinous LPA. The patient showed a poor response to 5 courses of pemetrexed, and she died one year after the diagnosis due to cancer progression. Nonmucinous LPA showed a rare presentation characterized by extensive aerogenous spread followed by a poor prognosis.

scholarly journals Scrofuloderma: A Diagnosis to Bear in Mind in the Western World

2019 ◽  
Vol 32 (4) ◽  
pp. 313
Author(s):  
Mariana Batista ◽  
Barbara Ferreira ◽  
Gonçalo Cruz ◽  
Américo Figueiredo
Keyword(s):  
Periodic Acid ◽  
Previous History ◽  
Complete Response ◽  
Purulent Discharge ◽  
Western World ◽  
Periodic Acid Schiff ◽  
Cutaneous Tuberculosis ◽  
Immunodeficiency Virus ◽  
History Of ◽  
Polymerase Chain

The incidence of tuberculosis has been increasing worldwide. Contrarily, a recent decrease in Portugal has been reported. Cutaneous tuberculosis comprises a low percentage of all cases. We report a 70-year-old female with a 2-month-history of painful, nodular, suppurative lesions in the groin area, bilaterally. Previous history was remarkable for Human Immunodeficiency Virus infection and stage-IIIB cervical cancer. A skin biopsy, stained with periodic acid–Schiff and Fite’s stain, polymerase chain reaction on purulent discharge and mycobacterial culture of the skin were performed, leading to the diagnosis of scrofuloderma. Tuberculostatic therapy was initiated and complete response was observed. This case depicts an uncommon variant of tuberculosis, highlighting the need for awareness of the cutaneous variants of tuberculosis that, although rare, can still present in the clinic today.

scholarly journals Detection in milk of a 60,000 Mr mouse and a 68,000 Mr human phosphorylated glycoprotein by histochemical analysis on polyacrylamide gels.

1983 ◽  
Vol 31 (6) ◽  
pp. 709-716 ◽  
Author(s):  
M R Green
Keyword(s):  
Molecular Weight ◽  
Sialic Acid ◽  
Periodic Acid ◽  
Sodium Dodecyl ◽  
Apparent Molecular Weight ◽  
Blue Staining ◽  
Polyacrylamide Gels ◽  
Periodic Acid Schiff ◽  
Coomassie Blue Staining ◽  
Coomassie Blue

Proteins in colostrum and skimmed milk from humans and mice were separated by electrophoresis on polyacrylamide gels and stained with Coomassie blue (CB), Ethyl-Stains-all (ESA), and periodic acid-Schiff (PAS) to investigate changes that may occur in milks throughout lactation. In mouse colostrum but not in mature mouse milk, a PAS-positive protein of apparent molecular weight of 60,000 stained prominently blue with ESA. A protein in human milk with a molecular weight of 68,000 stained similarly but was present throughout lactation. The intensity of blue staining of these minor proteins in milk approached that obtained with casein phosphoproteins. The metachromatic dye ESA stains phosphoproteins and sialic acid-rich glycoproteins blue to blue-green. Removal of phosphorus from the former and sialic acid from the latter results in those proteins staining red with ESA. The intensity of blue staining of the 60,000 and 68,000 Mr proteins was diminished but not lost following treatment with phosphatase. It was eliminated following neuraminidase digestion of the mouse protein and mild acid hydrolysis of the human protein. Coomassie blue staining of the proteins was not affected by these procedures. Following electrophoresis of milk and milk fractions in a non-sodium dodecyl sulfate-containing system, the proteins were identified by their characteristic staining properties with ESA and isolated.

Sign in / Sign up

Export Citation Format

Share Document