Diagnosis of Retrobulbar Round Cell Neoplasia in a Macaroni Penguin (Eudyptes chrysolophus) Through Use of Computed Tomography

2015 ◽  
Vol 29 (1) ◽  
pp. 40-45 ◽  
Author(s):  
Sarah J. Woodhouse ◽  
Michelle Rose ◽  
Danielle R. Desjardins ◽  
Dipl ACVP ◽  
Dalen W. Agnew
Keyword(s):  
Computed Tomography ◽  
Round Cell ◽  
Macaroni Penguin ◽  
Eudyptes Chrysolophus

Macaroni Penguin (Eudyptes chrysolophus)

2020 ◽  
Author(s):  
Isabel Martínez ◽  
David Christie ◽  
Francesc Jutglar
Keyword(s):  
Macaroni Penguin ◽  
Eudyptes Chrysolophus

Spontaneous Regression of a Mandibular Plasmacytoma in a Juvenile Dog: A Case Report

2020 ◽  
Vol 56 (3) ◽  
Author(s):  
Erika Villedieu ◽  
Samuel Beck ◽  
Laurent Findji
Keyword(s):  
Computed Tomography ◽  
Spontaneous Regression ◽  
Round Cell ◽  
Computed Tomography Scan ◽  
Computed Tomography Scanning ◽  
Cell Neoplasm ◽  
Poorly Differentiated ◽  
The Right ◽  
Tomography Scan ◽  
Tomography Scanning

ABSTRACT A 4 mo old female Finnish lapphund presented for further investigation of a swelling of the right rostral mandible. A computed tomography scan showed the swelling to be an expansile and osteolytic mandibular lesion. Histopathology revealed a poorly differentiated, moderately well-demarcated, unencapsulated, highly infiltrative round cell neoplasm, and immunohistochemistry was supportive of a plasmacytoma. Performance of a rostral partial mandibulectomy was initially discussed with the owners, but the lesion improved spontaneously both clinically and on repeated computed tomography scanning before surgery could be performed. It subsequently almost completely resolved 6 mo after diagnosis. Hypotheses for spontaneous regression of the lesion are discussed and the human literature is briefly reviewed.

scholarly journals Solitary Relapse of Desmoplastic Small Round Cell Tumor Detected by Positron Emission Tomography/Computed Tomography

2008 ◽  
Vol 26 (30) ◽  
pp. 4995-4996 ◽  
Author(s):  
Brian H. Kushner ◽  
Michael P. Laquaglia ◽  
William L. Gerald ◽  
Kim Kramer ◽  
Shakeel Modak ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Positron Emission Tomography ◽  
Cell Tumor ◽  
Emission Tomography ◽  
Round Cell ◽  
Round Cell Tumor ◽  
Small Round Cell Tumor ◽  
Small Round Cell ◽  
Positron Emission

Behavioural switching in a central place forager: patterns of diving behaviour in the macaroni penguin (Eudyptes chrysolophus)

2010 ◽  
Vol 157 (7) ◽  
pp. 1543-1553 ◽  
Author(s):  
Tom Hart ◽  
Richard Mann ◽  
Tim Coulson ◽  
Nathalie Pettorelli ◽  
Phil Trathan
Keyword(s):  
Central Place ◽  
Diving Behaviour ◽  
Macaroni Penguin ◽  
Eudyptes Chrysolophus ◽  
Behavioural Switching ◽  
Central Place Forager

Computed Tomography of Lipomatous and Myxoid Tumors

1985 ◽  
Vol 26 (6) ◽  
pp. 709-713 ◽  
Author(s):  
S. Lindahl ◽  
G. Markhede ◽  
Ö. Berlin
Keyword(s):  
Computed Tomography ◽  
Contrast Enhancement ◽  
Soft Tissues ◽  
Preoperative Evaluation ◽  
Surrounding Tissue ◽  
Round Cell ◽  
Cell Type ◽  
Radiographic Appearance ◽  
Histologic Types ◽  
Attenuation Values

Thirty-two lipomatous and myxoid tumors were examined by computed tomography (CT). An attempt was made to correlate the radiographic appearance of the tumor to different histologic types of these tumors. It was found that a well delineated lipomatous lesion with uniform radiographic density, an attenuation value below −73 Hounsfield units (HU) and absence of contrast enhancement can be considered strongly suggestive of a benign lipoma. Atypical lipomas, myxoma and well differentiated liposarcomas have good delineation against the surrounding tissue with no peripheral hypervascularity in the majority of cases. The attenuation values varied between −83 and +38 HU. Liposarcomas of myxoid type, mixed myxoid and round-cell type, round-cell type, and pleomorphic type were all poorly delineated with attenuation values between +12 and +38 HU and with varying contrast enhancement. Thus CT can be considered to play an important role in the preoperative evaluation of lipomatous and myxoid tumors of the soft tissues. Besides valuable topographic information CT helps, to some extent, to differentiate between various types of lipomatous tumors.

Melioidosis in a macaroni penguin Eudyptes chrysolophus

1990 ◽  
Vol 9 ◽  
pp. 105-107 ◽  
Author(s):  
K MacKnight ◽  
D Chow ◽  
B See ◽  
N Vedros
Keyword(s):  
Macaroni Penguin ◽  
Eudyptes Chrysolophus
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