RESUMO
Subungual keratoacanthoma (SK) is a digital neoplasm that has rarely been reported in dogs and carries an excellent prognosis following surgical removal. Radiographic features of canine SK have only been briefly discussed in two prior case reports. Both articles described extensive distal phalangeal osteolysis, a feature more commonly associated with malignant digital neoplasms (e.g., subungual squamous cell carcinoma (SCC) or melanoma). This retrospective case series aimed to further characterize radiographic findings of histologically confirmed canine SK. Seven dogs met the inclusion criteria, with a total of seven affected digits. All seven digits (100%) had osteolysis of the distal phalanx's ungual process and crest, as well as regional soft tissue swelling. Osteolysis of the ungual process was severe in all cases, with complete destruction in six of seven digits (86%). Partial ungual crest geographic and expansile osteolysis was noted in four of seven digits (57%), while two digits (28%) had complete ungual crest destruction. Seven of seven digits (100%) had a radiographically thickened claw, and two of seven digits (28%) had associated lysis of the distal aspect of the middle phalanx. Based on these findings, an osteolytic subungual mass should not be considered pathognomonic for malignant neoplasia. Observing the imaging features previously described should prompt veterinarians to consider SK as a differential diagnosis.
Assuntos
Doenças do Cão , Doenças do Pé , Ceratoacantoma , Animais , Cães , Carcinoma de Células Escamosas/cirurgia , Carcinoma de Células Escamosas/veterinária , Doenças do Cão/diagnóstico por imagem , Doenças do Cão/cirurgia , Ceratoacantoma/diagnóstico por imagem , Ceratoacantoma/cirurgia , Ceratoacantoma/veterinária , Melanoma/veterinária , Doenças da Unha/diagnóstico por imagem , Doenças da Unha/cirurgia , Doenças da Unha/veterinária , Estudos Retrospectivos , Doenças do Pé/diagnóstico por imagem , Doenças do Pé/cirurgia , Doenças do Pé/veterinária , Resultado do TratamentoRESUMO
A juvenile intact female ornate box turtle (Terrapene ornata ornata) was referred for evaluation of right-sided appendicular swelling that was nonresponsive to antimicrobial therapy. Computed tomography (CT) revealed severe soft tissue swelling of the limbs and neck, with multiple associated tortuous gas-filled sinus tracts extending from the cutaneous surface, which contained oblong soft tissue attenuating structures. These CT findings were most consistent with migrating dipterous larvae. Surgical exploration was performed and six sarcophagid larvae (Superfamily Oestroidea) were extracted. To our knowledge, this is the first case report in veterinary medicine providing antemortem CT imaging features of cutaneous myiasis in a reptile.