RESUMO
In humans, free-hand computed tomography (CT)-guided biopsy is an accurate method to obtain a tissue sample. There are only a few reports of this technique in veterinary medicine. In the present study, 21 dogs and two cats underwent a free-hand CT-guided tissue-core biopsy (17 animals) or fine-needle aspiration (six animals) of a bone lesion. Two out of 17 tissue-core samples were also cultured. All 17 tissue-core biopsy samples were diagnostic (accuracy of 100%). Five out of six aspirates were diagnostic (accuracy of 83.3%). The overall accuracy was 95.7%. In one aspirate, cytologic quality was insufficient containing only blood. No major complications were encountered. Fourteen neoplastic, two infectious and six benign lesions were diagnosed. CT examination after intravenous contrast medium added useful information to avoid large vessels and to biopsy-viable tissue. Free-hand CT-guided tissue-core biopsy and aspiration appears to be a safe and very accurate procedure for use in the diagnosis of bone-associated diseases in small animals.
Assuntos
Biópsia por Agulha/veterinária , Doenças Ósseas/veterinária , Doenças do Gato/patologia , Doenças do Cão/patologia , Animais , Doenças Ósseas/patologia , Neoplasias Ósseas/patologia , Neoplasias Ósseas/veterinária , Doenças do Gato/diagnóstico por imagem , Gatos , Meios de Contraste , Doenças do Cão/diagnóstico por imagem , Cães , Feminino , Masculino , Osteomielite/patologia , Osteomielite/veterinária , Valor Preditivo dos Testes , Radiografia Intervencionista/veterinária , Tomografia Computadorizada por Raios X/veterináriaRESUMO
A 9-month-old neutered male cat was referred because of left forelimb lameness. Physical examination, laboratory analysis, and radiographic examination of the entire skeleton were performed. The radiographic diagnosis was bilateral radio-ulnar synostosis with secondary elbow malformation. A comparison between clinical and radiographic findings of the cat and those described in children affected by radio-ulnar synostosis is reported. Correlations and differences are discussed.
Assuntos
Doenças do Gato/diagnóstico , Articulação do Cotovelo/anormalidades , Sinostose/veterinária , Animais , Doenças do Gato/diagnóstico por imagem , Gatos , Criança , Diagnóstico Diferencial , Feminino , Humanos , Coxeadura Animal/etiologia , Masculino , Radiografia , Sinostose/complicações , Sinostose/diagnósticoRESUMO
A Boxer puppy had an unusual dysplastic lesion of the distal epiphysis of the left femur. Biopsy and CT examination were performed. A diagnosis of dysplasia epiphysealis hemimelica (DEH) was made. To the investigators knowledge, this condition has not been described before in animals. DEH is a growth disorder involving preferentially the medial compartment of the lower limbs, and it is associated with epiphyseal hypertrophy and delayed mineralization.
