Case of Ewing’s Sarcoma Misdiagnosed as a Periapical Lesion of Maxillary Incisor

Ewing's Sarcoma Family Tumors in the Jaws: Case Report, Immunohistochemical Analysis and Literature Review

“…The final diagnosis of ES/pPNET was only confirmed after microscopy associated with immunohistochemical analysis. Other authors have also misdiagnosed cases with clinical features similar to those of our case as being cysts (3,(19)(20)(21). Moreover, trauma (22)(23)(24) and acute inflammatory lesions (1, 3, 24-29, 30, 31) were also mentioned several times as provisional diagnosis.…”

“…Radiographically, ES family tumors present with poorly defined osteolytic lesions, cortical erosion, sunray spicules of periosteal bone, and displacement of teeth. Nevertheless, none of these radiographic signs are pathognomonic of ES family tumors (21). The atypical clinical features, absence of pathognomonic radiological signs and rarity might cause a delay in the final diagnosis and beginning of appropriate treatment.…”

Multidisciplinary therapy including proton beam radiotherapy for a Ewing sarcoma family tumor of maxillary sinus in a 4‐year‐old girl

“…However, complete resection is occasionally unfeasible for ESFT of the head and neck because of possible functional and cosmetic side effects . In fact, various treatments have been performed for the 28 patients with localized ESFT of maxilla previously described (Table ). Of the 13 patients who underwent surgery, 11 also received chemotherapy, 4 also received both chemotherapy and radiotherapy, and 2 received no additional treatment.…”

Keratocystic odontogenic tumour arising as a periapical lesion

“…According to Brannon (1976), Chuong et al (1982) and Stajci c & Paljm (1987), the frequency of keratinizing cysts in the periapical region ranges from 0.5 to 7%. In addition, other tumours that arise in the tooth periapex less frequently have been also described as lymphomas (Mendonça et al 2013), and sarcomas (Davido et al 2011), salivary gland carcinomas (Favia et al 2000, Chen et al 2004, haemangiomas , schwannomas (Martins et al 2007) and lipomas (Morais et al 2011). With respect to odontogenic tumours, Wright et al (1983) reported four cases of periapical keratocysts, with three of them involving the anterior maxilla.…”