Infiltrative lipoma causing vertebral deformation and spinal cord compression in a dog

Kimura, Shige; Yamazaki, M; Tomohisa, Manabu; Mori, Takashi; Yanai, Tokuma; Maeda, Sadatoshi; Kamishina, Hiroaki

doi:10.1292/jvms.18-0257

Cited by 12 publications

(15 citation statements)

References 11 publications

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“…Extradural tumors are the most common spinal neoplasia in cats and dogs and include primary bone neoplasms (e.g., osteosarcoma, fibrosarcoma, chondrosarcoma, and hemangiosarcoma), round cell neoplasms (e.g., multiple myeloma, lymphoma, and plasma cell tumors), primary tumors arising from paraspinal soft tissues (e.g., liposarcoma, mast cell tumor, and myxosarcoma), and metastasis, commonly carcinomas (2)(3)(4)(5)(6). Less commonly, benign tumors, such as osteoma, fibroma, chondroma, lipoma, and synovial myxoma, can occur (2,(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17). Locally invasive, slowgrowing neoplasms arising from remnants of the notochord, chondroid chordomas, have also rarely been reported (18,19).…”

Section: Introductionmentioning

confidence: 99%

Magnetic Resonance Imaging Features of Extradural Spinal Neoplasia in 60 Dogs and Seven Cats

2021

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This retrospective study describes the MRI features of extradural spinal neoplasia in 60 dogs and seven cats to identify potential distinguishing features between tumor classes and individual tumor types within each class. In dogs, mesenchymal tumors were most common (48%), with undifferentiated sarcomas being the predominant tumor type. Round cell neoplasms were second most common (35%), with lymphoma and multiple myeloma/plasma cell tumor comprising the majority of cases. Only two benign tumors were identified. In cats, lymphoma was most common (5/7), with one case of mesenchymal neoplasia and one case of metastatic carcinoma. Despite some overlap, certain imaging features were able to help prioritize differential diagnoses. The combined features that predicted round cell neoplasia (84%) included the preservation of vertebral shape, homogeneous contrast enhancement, and lesion centering on bone. The combined features that predicted mesenchymal neoplasia (73%) included altered vertebral shape, heterogeneous contrast enhancement, and lesion centering on paraspinal soft tissues. Round cell neoplasms were more likely to have cortical sparing, preservation of overall shape, lesion centering on bone, small soft tissue tumor size, and homogeneous contrast enhancement. Both epithelial and mesenchymal neoplasms were more likely to have cortical lysis, a cavitary component to the soft tissue mass and medium to large soft tissue mass size. The findings of this study can aid in prioritizing differential diagnoses in cases of extradural spinal neoplasia in cats and dogs, which can impact case management, but tissue sampling remains the gold standard for definitive diagnosis.

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Section: Introductionmentioning

confidence: 99%

Magnetic Resonance Imaging Features of Extradural Spinal Neoplasia in 60 Dogs and Seven Cats

2021

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“…6 These tumours can invade adjacent tissues including muscles, connective tissue, bones, peripheral nerve and spinal cord. 8 Reports of infiltrative lipomas within the muscles of the thoracic limb are sparse in the literature. 19,23 Among all cases reported in the literature, only four described the presence of an infiltrative intramuscular lipoma in the antebrachium.…”

Section: Discussionmentioning

confidence: 99%

“…5 In some cases, benign lipomas can become locally aggressive, infiltrating adjacent tissues, including muscle, fascia, nerve and bone. 2,[6][7][8][9][10][11][12][13][14][15][16][17] In these cases, they are referred to as infiltrative lipomas. Large breed, older, female dogs are considered predisposed, with Labrador Retrievers, Doberman Pinscher and mixed breed dogs being most commonly represented.…”

Section: Introductionmentioning

confidence: 99%

Infiltrative Intramuscular Lipoma in the Antebrachium of a Dog

2023

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This case report describes a dog with an infiltrative intramuscular lipoma in the antebrachium, presenting with chronic left forelimb lameness and altered posture of the digits. Computed tomography showed a fat-attenuating mass displacing the flexor tendons. The mass was surgically excised along with the affected muscle belly and tendon; histopathological examination revealed infiltration of adipose tissue cells within the muscle belly and tendon sheath of the deep digital flexor muscle. After removal of the lipoma, lameness resolved, full ambulatory function returned, without recurrence at 1 year follow-up.

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“…2007, Trębacz & Galanty 2016, Kimura et al . 2018). In this case, the subcutaneous lipoma was of substantial size in the cervical and axillary region causing compression of the right jugular vein and leftward deviation of the right carotid arteries and adjacent structures.…”

Section: Discussionmentioning

confidence: 99%

Chylothorax secondary to subcutaneous cervical lipoma in a dog

Sumner

Makrygiannis

Bartges

et al. 2023

J of Small Animal Practice

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An 8‐year‐old male neutered American English Coonhound was presented for a 2‐day history of increased respiratory effort and rate with an occasional cough. Thoracic radiographs noted pleural effusion, which was chylous based on cytological and chemical evaluation. The dog also had a 2‐year history of a slow growing fatty mass in the right cervical region. A CT scan confirmed the large cervical fat attenuating mass extending from the base of the skull to the cranial thorax and right axillary region with compression of vascular structures. Severe bilateral effusion and secondary pulmonary atelectasis was noted within the thoracic cavity. It was elected to surgically remove the cervical mass and place a PleuralPort within the thoracic cavity. The mass was diagnosed as a lipoma and its removal led to rapid and complete resolution of chylothorax. Based on the literature search, this is the first case report of chylothorax secondary to a cervical mass or subcutaneous lipoma.

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Infiltrative lipoma causing vertebral deformation and spinal cord compression in a dog

Cited by 12 publications

References 11 publications

Magnetic Resonance Imaging Features of Extradural Spinal Neoplasia in 60 Dogs and Seven Cats

Magnetic Resonance Imaging Features of Extradural Spinal Neoplasia in 60 Dogs and Seven Cats

Infiltrative Intramuscular Lipoma in the Antebrachium of a Dog

Chylothorax secondary to subcutaneous cervical lipoma in a dog

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