EUMYCOTIC MYCETOMA DUE TO<i>DRECHSLERA ROSTRATA</i>INFECTION IN A COW

Pritchard, D. H.; Chick, B. F.; Connole, M. D.

doi:10.1111/j.1751-0813.1977.tb00197.x

Cited by 17 publications

(14 citation statements)

References 2 publications

(1 reference statement)

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“…has been reported, the fungal species was not identified in one report 16 and in another report D. rostrata (now considered to be E. rostratum ) was identified. 13 To our knowledge, E. mcginnisii dermal granulomas have not been reported previously in cattle. We retrieved no cases of E. mcginnisii infection in cattle in a search of Google, PubMed, Web of Science, CAB Direct, and SciELO, using the following search terms “ Exserohilum mcginnisii cattle,” “ Exserohilum mcginnisii cow,” “ Exserohilum mcginnisii bovine,” suggesting that this fungal species has not been reported in cattle.…”

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Granulomatous dermatitis caused by Exserohilum mcginnisii infection in a cow

Ilha,

Weaver,

Graham

2023

J VET Diagn Invest

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A 5-y-old, Piedmontese cow had a 4-mo history of ongoing development of skin masses. This was the only cow affected in a herd of 20 cows. Up to 12, hairless, red-to-black, raised nodules-to-plaques were distributed along the dorsum and tail head. Biopsies were taken for histopathology and ancillary testing. An ulcerated skin section contained dermal infiltrates of eosinophils, plasma cells, neutrophils, macrophages, lymphocytes, and multinucleate giant cells, and pyogranulomas. Fungal hyphae were seen within the dermis, multinucleate giant cells, and pyogranulomas. In pyogranulomas, fungi were surrounded by a Splendore–Hoeppli reaction. Dematiaceous (pigmented) hyphae were rarely observed with H&E-stained and unstained (cleared and mounted) sections, but stained well with a Fontana–Masson stain. Exserohilum mcginnisii was identified by fungal culture, followed by PCR assay and sequencing. Exserohilum is a dematiaceous fungus that causes disease in humans and rarely in animals. The use of unstained sections and Fontana–Masson stain are important to demonstrate pigment because dematiaceous fungi have little melanin and appear as hyaline hyphae histologically. PCR assay and sequencing aid in the differentiation and classification of fungal species. To our knowledge, E. mcginnisii dermal granulomas have not been reported previously in cattle.

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confidence: 70%

“…16 In the case of D. rostrata ( E. rostratum ) infection in a cow, cutaneous lesions were also distributed over the rump and thighs as well as in the nasal cavity and lymph nodes. 13…”

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confidence: 99%

Granulomatous dermatitis caused by Exserohilum mcginnisii infection in a cow

Ilha,

Weaver,

Graham

2023

J VET Diagn Invest

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“…Among the various etiologic agents of phaeohyphomycosis, Bipolaris hawaiiensis (Drechslera hawaiiensis) (2,8,23), B. spicifera (D. spicifera) (2,7,19,22,24), and Exserohilum rostratum (D. rostrate) (1,2) are being recognized with increasing frequency. B. spicifera and E. rostratum are also known to be opportunistic agents of subcutaneous and systemic phaeohyphomycosis in such lower animals as cats (3,16), dogs (11), horses (9,10,20), and cattle (4,15,17,18). In this report, we describe a phaeohyphomycotic infection of the nasal sinuses caused by a new Exserohilum species.…”

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Phaeohyphomycosis of the nasal sinuses caused by a new species of Exserohilum

Padhye¹,

Ajello²,

Wieden³

et al. 1986

J Clin Microbiol

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A 27-year-old man with a 6-year history of allergies developed nasal polyps that occluded his nose and prevented visual examination beyond the nasal vestibules. Histological examination of the polyps and bony tissue revealed septate, dematiaceous hyphae invading the bone trabeculae. A dematiaceous fungus was isolated in pure culture from the diseased tissue. Detailed mycological examination of the isolate showed that it produced numerous, distinctive poroconidia from erect, geniculate, sympodial conidiophores. The conidia were straight and cylindroellipsoidal, had 8 to 13 distosepta, and had protruding hila. The outer cell walls of the conidia, which were initially smooth, became unevenly roughened on aging. Comparison with other Exserohilum species revealed that the isolate represented an undescribed species; it is named Exserohilum mcginnisii sp. nov.

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“…One of the cases reported in Papua New Guinea was extradural, similar to that we recently encountered in New Caledonia. A few references [18][19][20] about mycetoma in Australia were found. granuloma.…”

Section: Deep-seated Mycoses In New Caledonia 33mentioning

confidence: 99%

Deep‐seated fungal diseases in the South Pacific, especially in New Caledonia

Monchy

Huerre

Bièvre

1998

Mycoses

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The main deep-seated fungal diseases and their encountered pathology in New Caledonia and other islands of the South Pacific are reviewed (1970-96). Cryptococcosis is encountered in all islands of the South Pacific, Australia and Papua New Guinea, with a predominance of variety gattii, which is associated with some species of Eucalyptus. Histoplasmosis is not uncommon, and there was an epidemic in New Caledonia in 1994 among people who had visited a bat-inhabited cave. Mycetomas, in particular presenting as pale granules in tissues, are encountered in New Caledonia, Vanuatu, Papua New Guinea, Fiji and French Polynesia. Other fungal infections, such as zygomycosis, sporotrichosis (three cases) and chromomycosis (six cases) are rarely observed in New Caledonia.

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EUMYCOTIC MYCETOMA DUE TODRECHSLERA ROSTRATAINFECTION IN A COW

Cited by 17 publications

References 2 publications

Granulomatous dermatitis caused by Exserohilum mcginnisii infection in a cow

Granulomatous dermatitis caused by Exserohilum mcginnisii infection in a cow

Phaeohyphomycosis of the nasal sinuses caused by a new species of Exserohilum

Deep‐seated fungal diseases in the South Pacific, especially in New Caledonia

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