Undifferentiated carcinoma of unknown origin in the lumbar spine of a dog

Jiyoung Park; Seong Mok Jeong; Ho Jung Choi; Kun Ho Song; Kyoung Won Seo

Undifferentiated carcinoma of unknown origin in the lumbar spine of a dog

Jiyoung Park, Seong Mok Jeong, Ho Jung Choi, Kun Ho Song, Kyoung Won Seo

Research output: Contribution to journal › Article › peer-review

Abstract

An 11-year-old Yorkshire Terrier dog presented with progressive ataxia and paraparesis of 1 month duration. The abnormality was localized to the T13-L2 segment by neurologic examination and CT. MRI showed a space-occupying lesion compressing the spinal cord and adjacent osteolysis of the L1 vertebra. A diagnosis of poorly differentiated carcinoma with high malignancy was reached by histopathology of the biopsy samples. Metronomic chemotherapy was applied, but the patient was euthanized at 133 days after first presentation. Samples of the lumbar mass, pulmonary nodules, and lymph nodes were obtained during necropsy and evaluated with histopathology and immunohistochemistry (IHC). Undifferentiated carcinoma suspicious of transitional cell carcinoma was confirmed, but the exact origin of the tumor was undetermined. This is the first case report of an extradural primary carcinoma of unknown primary in the canine spinal cord and paravertebral region.

Original language	English (US)
Pages (from-to)	116-118
Number of pages	3
Journal	Pakistan Veterinary Journal
Volume	35
Issue number	1
State	Published - Jan 1 2015
Externally published	Yes

Keywords

Carcinoma of unknown primary
Dog
Metastasis
Spinal cord neoplasia

ASJC Scopus subject areas

veterinary(all)

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title = "Undifferentiated carcinoma of unknown origin in the lumbar spine of a dog",

abstract = "An 11-year-old Yorkshire Terrier dog presented with progressive ataxia and paraparesis of 1 month duration. The abnormality was localized to the T13-L2 segment by neurologic examination and CT. MRI showed a space-occupying lesion compressing the spinal cord and adjacent osteolysis of the L1 vertebra. A diagnosis of poorly differentiated carcinoma with high malignancy was reached by histopathology of the biopsy samples. Metronomic chemotherapy was applied, but the patient was euthanized at 133 days after first presentation. Samples of the lumbar mass, pulmonary nodules, and lymph nodes were obtained during necropsy and evaluated with histopathology and immunohistochemistry (IHC). Undifferentiated carcinoma suspicious of transitional cell carcinoma was confirmed, but the exact origin of the tumor was undetermined. This is the first case report of an extradural primary carcinoma of unknown primary in the canine spinal cord and paravertebral region.",

keywords = "Carcinoma of unknown primary, Dog, Metastasis, Spinal cord neoplasia",

author = "Jiyoung Park and Jeong, {Seong Mok} and Choi, {Ho Jung} and Song, {Kun Ho} and Seo, {Kyoung Won}",

year = "2015",

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language = "English (US)",

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pages = "116--118",

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T1 - Undifferentiated carcinoma of unknown origin in the lumbar spine of a dog

AU - Park, Jiyoung

AU - Jeong, Seong Mok

AU - Choi, Ho Jung

AU - Song, Kun Ho

AU - Seo, Kyoung Won

PY - 2015/1/1

Y1 - 2015/1/1

N2 - An 11-year-old Yorkshire Terrier dog presented with progressive ataxia and paraparesis of 1 month duration. The abnormality was localized to the T13-L2 segment by neurologic examination and CT. MRI showed a space-occupying lesion compressing the spinal cord and adjacent osteolysis of the L1 vertebra. A diagnosis of poorly differentiated carcinoma with high malignancy was reached by histopathology of the biopsy samples. Metronomic chemotherapy was applied, but the patient was euthanized at 133 days after first presentation. Samples of the lumbar mass, pulmonary nodules, and lymph nodes were obtained during necropsy and evaluated with histopathology and immunohistochemistry (IHC). Undifferentiated carcinoma suspicious of transitional cell carcinoma was confirmed, but the exact origin of the tumor was undetermined. This is the first case report of an extradural primary carcinoma of unknown primary in the canine spinal cord and paravertebral region.

AB - An 11-year-old Yorkshire Terrier dog presented with progressive ataxia and paraparesis of 1 month duration. The abnormality was localized to the T13-L2 segment by neurologic examination and CT. MRI showed a space-occupying lesion compressing the spinal cord and adjacent osteolysis of the L1 vertebra. A diagnosis of poorly differentiated carcinoma with high malignancy was reached by histopathology of the biopsy samples. Metronomic chemotherapy was applied, but the patient was euthanized at 133 days after first presentation. Samples of the lumbar mass, pulmonary nodules, and lymph nodes were obtained during necropsy and evaluated with histopathology and immunohistochemistry (IHC). Undifferentiated carcinoma suspicious of transitional cell carcinoma was confirmed, but the exact origin of the tumor was undetermined. This is the first case report of an extradural primary carcinoma of unknown primary in the canine spinal cord and paravertebral region.

KW - Carcinoma of unknown primary

KW - Dog

KW - Metastasis

KW - Spinal cord neoplasia

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