Perifeer osteoma van de mandibula bij een kat

Abstract

A six-year-old, male, castrated domestic shorthair cat was presented for evaluation of an oral mass. Full physical examination revealed a large hard mass arising from the lateral aspect of the caudal part of the left mandible. Abdominal ultrasound and thoracic computed tomography (CT) were performed to rule out metastatic disease. In addition, CT of the skull with intravenous contrast agent was performed. Histopathological examination of extra-oral biopsies confirmed the tentative diagnosis of peripheral osteoma. A three-dimensional printed skull was used in conjunction with the CT images to determine the detailed location and extent of the mass and to identify anatomical spatial relationships with important neurovascular structures. Surgical debulking of the osteoma was performed. The cat recovered uneventfully but the mass regrew nine months after debulking therapy, sooner than expected. Nevertheless, CT scan of the skull was suggestive for regrowth of the peripheral osteoma rather than for malignant transformation. The owners did not elect to pursue caudal mandibulectomy.

A rare case report of extensive mandibular osteoma corrected by unilateral mandibulectomy: cytological, radiological, and pathological investigation

“…Due to the majority of bone tumors in animals being malignant ( Quigley and Leedale, 1983 ), it is significant to diagnose the type of this tumor. Osteoma is a slow-growing lesion and is mostly diagnosed by the incident ( Van Duijl et al , 2018 ). Mandibles are the most common location for this tumor ( Larrea-Oyarbide et al , 2008 ).…”

“…Many factors contribute to the diagnosis of the masses as sex, breed, location, growth pattern, bone involvement, vessel invasion, lymph node invasion, metastasis, and recurrence ( Simons, 2015 ). Osteoma is a benign tumor of bone (trabecular or dense lamellar) tissue ( Van Duijl et al , 2018 ). They do not invade the cortical surface or undergo neoplastic changes.…”

Three-dimensional printing applications in veterinary surgery

“…They state that advanced preoperative planning and surgical rehearsals with 3D printing are very useful in these applications, and 3D printing is an excellent tool in this regard (Winer et al, 2017). Van Duijl et al (2018) performed the surgical planning procedures in a cat with osteoma in the mandible with the 3D printed model and reported its advantages. Lam and Kim (2018) used 3D computer-aided planning and 3D printing modeling for the surgery of a complex articular femur fracture in a dog.…”