Neoplasms of sheep: A survey of 256 cases recorded at Ruakura Animal Health Laboratory

Cordes, D. O.; Shortridge, E.H.

doi:10.1080/00480169.1971.33933

Cited by 40 publications

(26 citation statements)

References 10 publications

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“…It has been reported that although leukemia and bone marrow were not involved in ovine lymphoma in a study 8 , but chronic lymphocytic leukemia and bone marrow involvement were described in sheep in another study 10 . Development of persistent lymphocytosis was reported in sheep infected by BLV 4 . Furthermore, leukemia was reported to develop following the late stages of solid lymphoma 5 .…”

Section: Discussionmentioning

confidence: 99%

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Bir Akkaraman Koyunda T Hücreli Lenfoma

Çeribaşı¹,

Özkaraca²,

Çeribaşı³

et al. 2013

Kafkas Univ Vet Fak Derg

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SummaryLympocytic T cell lymphoma was detected in liver and kidneys of a 3 year old Akkaraman sheep which was submitted to the pathology department for diagnosis. Macroscopically, nodular formations with white colour and about 1 cm size were observed in the cortex of both kidneys. The irregular nodules were observed in the liver, similar to the lesions in the kidneys. Microscopically, the nodular lesions in the liver and kidneys were consisted of uniform lymphocytic accumulations. These lymphocytes were similar to the mature lymphocytes although they were bigger and had less chromatin. Immunohistochemically, tumor cells had positivity with CD3, but negativity with CD20 and CD79a. Thus, the tumor was described as type of lymphocytic T cell lymphoma.

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Section: Discussionmentioning

confidence: 99%

“…Although many cases have been reported in older sheeps, lymphoma was also identified in lambs 4 . No predisposition has been found in sheep in terms of breed and gender.…”

Section: Makale Kodu (Article Code): Kvfd-2012-8161mentioning

confidence: 99%

Bir Akkaraman Koyunda T Hücreli Lenfoma

Çeribaşı¹,

Özkaraca²,

Çeribaşı³

et al. 2013

Kafkas Univ Vet Fak Derg

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“…According to the report of McEntee (1990) amongst 498 cases of ovarian neoplasms found during necropsy over a 33 year period, 276 were found in dogs, 139 in horses, 22 in cats, seven in pigs, one in a goat and one in a sheep. Three cases of granulosa cell tumour were determined in a survey of 256 cases of neoplasms of sheep (Cordes and Shortridge 1971). A survey of 9 970 reproductive tracts from cull ewes and 23 536 tracts from nulliparous sheep revealed one case of granulosa cell tumour (Smith et al 1999), and another case of granulosa cell tumour in a ewe has been reported by Gardner et al (2005).…”

Section: Immunohistochemistrymentioning

confidence: 99%

Malignant Ovarian Granulosa Cell Tumour in a Ewe

Švara¹,

Gombač²,

Juntes³

et al. 2009

Acta Vet. Brno

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We describe a rare case of malignant granulosa cell tumour in an adult ewe, euthanised due to progressive weight loss. Necropsy examination revealed a neoplastic enlargement of the right ovary, multifocal neoplastic masses in the lung and spleen, and severe enlargement of mediastinal and iliacal lymph nodes. Histopathology of the right ovary revealed a malignant ovarian granulosa cell tumour with metastases to the lung, spleen, and mediastinal and iliacal lymph nodes. Immunohistochemistry confirmed histopathological diagnosis. Neoplastic cells reacted positively for CK MNF 116 and vimentin and were negative for CK 7 and desmin. To our knowledge this is the first report of a malignant granulosa cell tumour in ewe.

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“…Review ar ticles also lack inform ati on on centra l nervou s system tum ors of sheep [8,12,13]. Menin giom a, perineural fib robl astom a and adventitia l sa rcomas [91 , cerebra l hem an giom a astroc ytoma and intercos ta l neu rofibr om a [4] and spinal melan om a [2J ha ve been reported in shee p.…”

Section: H Helfer and D R Stevensmentioning

confidence: 99%

Spinal Neurofibroma in a Sheep

Helfer¹,

Stevens²

1978

Vet Pathol

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Th e commo n neopl asms of shee p include intestina l ade no carcino ma [1,6,14] and lymphosarco ma and hepatic ca rcino ma [1,5,14]. Th ere are few report s of neopl asms arising in nervou s tissue in sheep. Aba tto ir survey dat a generally do not ment ion tum ors of th e cen tra l nervous system [I,3, II ,14]. Review ar ticles also lack inform ati on on centra l nervou s system tum ors of sheep [8,12,13]. Menin giom a, perineural fib robl astom a and adventitia l sa rcomas [91 , cerebra l hem an giom a astroc ytoma and intercos ta l neu rofibr om a [4] and spinal melan om a [2J ha ve been reported in shee p.A 9-mo nth-old fema le Hampsh ire shee p was sub mitted to th e Sch ool of Veterinary Med icine's Diagnostic Lab or at ory, Ore gon State U niversity. Fo r th e previous mo nth th e shee p had refused to stand . T he owners had d ren ched th e shee p with egg yo lk and sugar, and had prov ided hay an d oa ts. At necropsy th ere was a firm white-tan 2-to 3-centime ter ovo id no dule on the ven tral surface of th e anterio r cervical spina l cord at the atlantal-occipi tal articulation ( fig. I). Ne rves did no t extend from the tum or. On section, th e tumor 's exp an sion had resulted in seve re co mpressio n atro phy of th e adj acent spina l cord ( fig. 2). T issue was fixed in 10% buffe red formalin and hem atoxylin and eosin (HE) -stained 6-microme ter sections were pre pared.T he tumo r was composed of numerous interl acing bundles of elonga te ba sophilic nuclei embedded in an abundant eosi no phi lic cytoplasm ic mat rix ( fig. 3). Ce ll bord ers were not distin ct. Th e nuclei varied in chroma tin density, but nucl eoli and mitot ic figures were uncommon . N ucle i were consisten tly a ligned in parall el ar rays, but palisading was rar e. Specia l stains showed a mod erat e amo unt of collage n, mainly restric ted to th e ed ges of th e cell-rich anastomosing bundles. Reticul in was not prom inent. T here was no evidence of necrosis, hemorrhage, miner alization, inl1amm ation or enca psulatio n. U ltras truc tural exa mination of form alin-fixed tissues was unrewarding becau se of fixation ar tifacts .

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Neoplasms of sheep: A survey of 256 cases recorded at Ruakura Animal Health Laboratory

Cited by 40 publications

References 10 publications

Bir Akkaraman Koyunda T Hücreli Lenfoma

Bir Akkaraman Koyunda T Hücreli Lenfoma

Malignant Ovarian Granulosa Cell Tumour in a Ewe

Spinal Neurofibroma in a Sheep

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