Cerebrospinal fluid (CSF) analysis is an important diagnostic test for patients with neurologic disease. Regular analysis of CSF includes erythrocyte and nucleated cell counts, measurement of protein concentration, and cytological assessment. [1][2][3][4][5][6] CSF is typically clear and colorless, has a very low protein content, no erythrocytes, and very low numbers of nucleated cells (0 to 5 cells/microliter in dogs). [1][2][3][4] Because of this low cell count, even in pathologic conditions, it is difficult to obtain accurate CSF cell counts when using standard hematologic analyzers. Thus the "gold standard" for CSF cell counts is the manual method, which uses
A 12‐year‐old mixed‐breed dog was presented for a follow‐up examination after ablation of an auricular mast cell tumour. An abdominal ultrasound and computed tomography were performed and an irregular, ill‐defined and partially mineralised lesion was observed around the caudal duodenal flexure without evidence of metastasis. The cytologic examination was highly suggestive of a granular cell tumour. Partial surgical ablation with histological and immunohistochemical examination of the lesion confirmed the diagnosis. According to our review of the literature, this is the first report documenting an abdominal granular cell tumour in a dog.
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