scholarly journals Case Report: Multimodality Imaging of Infectious Sacroiliitis and Retroperitoneal Abscess Causing Hindlimb Ataxia in a Young Dog

2021 ◽  
Vol 8 ◽  
Author(s):  
Jeongyun Jeong ◽  
Jaeeun Ko ◽  
Jaehwan Kim ◽  
Kidong Eom ◽  
Youngkwon Cho ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Sacroiliac Joint ◽  
Multimodality Imaging ◽  
Needle Aspiration ◽  
Retroperitoneal Abscess ◽  
Resonance Imaging ◽  
Intact Male ◽  
Gluteal Muscle ◽  
Fine Needle ◽  
Irregular Margin

A 3-month-old intact male Labrador Retriever was presented for falling trauma and hindlimb ataxia. Radiography indicated radiolucent left sacroiliac joint with irregular margin. Computed tomography revealed thickened sublumbar muscles and hypoattenuated sacroiliac joint while magnetic resonance imaging demonstrated abscess at retroperitoneum and gluteal muscle. Ultrasonography showed lytic left sacroiliac joint with retroperitoneal fluid, and fine needle aspiration resulted Staphylococcus aureus. Hindlimb ataxia was attributed to infectious sacroiliitis and its secondary retroperitoneal abscess. As far as the authors' knowledge, this is the first report of multimodality imaging of infectious sacroiliitis with retroperitoneal abscess caused by S. aureus in a dog.

scholarly journals Magnetic Resonance Imaging-Guided Fine Needle Aspiration for the Diagnosis of Skull Base Lesions

Skull Base ◽  
1992 ◽  
Vol 2 (03) ◽  
pp. 167-170 ◽  
Author(s):  
Randall Wenokur ◽  
James C. Andrews ◽  
Elliot Abemayor ◽  
Jeffrey Bailet ◽  
Lester Layfield ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Skull Base ◽  
Fine Needle Aspiration ◽  
Needle Aspiration ◽  
Resonance Imaging ◽  
Fine Needle ◽  
Skull Base Lesions

scholarly journals Diagnosis of a brachial plexus tumour using magnetic resonance imaging assisted by fine-needle aspiration biopsy in a dog: a case report

2014 ◽  
Vol 59 (No. 3) ◽  
pp. 146-149 ◽  
Author(s):  
Y. Zhalniarovich ◽  
Z. Adamiak ◽  
P. Holak ◽  
P. Przyborowska ◽  
A. Pomianowski
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Fine Needle Aspiration ◽  
Spin Echo ◽  
Cell Mass ◽  
Needle Aspiration ◽  
Resonance Imaging ◽  
Fine Needle ◽  
Multiple Round ◽  
The Masses

This study describes a case of a six-year-old female crossbreed dog that had a three months history of progressive right thoracic limb lameness. Palpation revealed muscle atrophy of the scapular and humeral area and painfulness in this region. Magnetic resonance imaging was performed in T1- and T2-weighted and STIR (short inversion recovery) sequences in sagittal and transverse planes. The masses around the scapula and humerus were heterogeneously hyper-intense in STIR and measured about 9 cm. The tumour was heterogeneously iso-intense relatively to the surrounding tissues in T-2 weighted Gradient Echo and Spin Echo sequences. After MRI fine needle aspiration of a central part of the tumour was performed. The biopsy revealed multiple round cells with very little cytoplasm and fusiform cells in which the cytoplasm created protrusions. Cells were arranged in rows or formed a homogeneous cell mass. A malignant peripheral nerve sheath tumour was diagnosed cytologically.  

Bone haemophilic pseudotumour of the ulna: A rare complication of haemophilia in a dog

2017 ◽  
Vol 30 (05) ◽  
pp. 371-376
Author(s):  
Mathieu Manassero ◽  
Jean-Laurent Thibaud ◽  
Edouard Reyes-Gomez ◽  
Véronique Viateau ◽  
Adeline Decambron
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Fine Needle Aspiration ◽  
Needle Aspiration ◽  
Successful Outcome ◽  
Haemophilia A ◽  
Resonance Imaging ◽  
German Shepherd ◽  
Fine Needle ◽  
Perioperative Bleeding

Summary Objectives: This case report describes for the first time a bone haemophilic pseudotumour in a dog. Case description: A seven-month-old German Shepherd male dog was presented with the complaint of a forelimb weight-bearing lameness with major swelling that expanded dramatically after fine needle aspiration. Radiographs showed a large, well-defined ulnar diaphyseal cystic-like osteolytic lesion. Based on prolonged activated partial thromboplastin time (aPTT) and low factor VIII activity, haemophilia A was diagnosed. Bone scintigraphy, computed tomography, magnetic resonance imaging, and histological findings definitely ruled out malignant neoplasia or inflammation and strongly supported a bone haemophilic pseudotumour over an aneurysmal bone cyst. Segmental ulnar resection and replacement by a polymethylmethacrylate spacer combined with perioperative bleeding management resulted in a successful outcome. Discussion: This case provided evidence that a bone haemophilic pseudotumour may be the sole presenting clinical sign of haemophilia A in dogs. Early diagnosis, based on history and magnetic resonance imaging findings, is imperative for prompt treatment leading to successful outcome. It is challenging as fine needle aspiration or biopsy is contraindicated. As described in humans, surgical excision of the lesion combined with management of severe postoperative bleeding was associated with successful outcome in the present case. Clinical significance: A bone haemophilic pseudotumour should be considered in the differential diagnosis of expanding mass associated with osteolysis, especially in young male dogs. Perioperative monitoring of the bleeding disorder and subsequent FVIII replacement therapy was of paramount importance in the present case.

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