Intraosseous Schwannoma of the Maxilla Mimicking a Periapical Lesion: A Diagnostic Challenge

The Incisive Canal: A Comprehensive Review

“…Surgical enucleation of the cyst is performed under local anesthesia and, usually, the cyst is aspirated before removal [ 31 - 32 ]. The differential diagnosis for incisive canal cyst includes: medial enlarged nasopalatine duct, central giant cell granuloma, central incisor root cyst, supernumerary tooth follicular cyst (normally mesiodens), primordial cyst, nasoalveolar cyst, osteitis with palatal fistulization, and bucconasal and/or buccosinusal communication, and intraosseous schwannoma [ 33 , 34 , 36 ]. It is recommended that cysts be followed up with radiographic images [ 31 , 33 ].…”

Diagnostic and Therapeutic Aspects of an Intraosseous Mandibular Schwannoma: Study of a Clinical Case

“…As a result of their coalescence, the less organized type B cells engender cyst formation. Such Antoni B tissues predominate in intraosseousschwannomas that enclose the enlarged blood vessels [21]. In our case, the malpighian mucosa was ulcerated, thereby leading to the formation of granulomatous tissue; a pronounced hyperplasia of the neocapillaries, while a moderate polymorphic inflammatory reaction was also observed.…”

“…At the level of the maxillary bone, the latter can be located both in the anterior and in the posterior sections, which contrasts with mandibular schwannomas which tend to affect more often, the posterior part of the upper branch (e.g. the ramus and the gonion) [21]. Schwannomas or neurilemmomas develop along the trajectory of motor or sensory peripheral and cranial nerves [8].…”

“…the inferior alveolar nerve [3,12,21]. Two types of schwannomas have been identified: peripheral neurogenic tumors located in soft tissues and central ones (intra) situated inside the bone [21].…”

Surgical treatment of Schwannoma in lower lip

“…The histopathological study of the lesion to be classified as two types, in which the cell pattern is organized in the form of Palisade is the kind Antoni A; While, in the second type, called Antoni B, cells are disorganized in a myxoid tissue 5 . Just as in the histopathological finding, the schwannomas can be presented in two forms, namely: peripheral, in which the lesion is found in soft tissue and, where the tumor is found inside the bones and is considered the rarest form of the disease 6 . Although they can occur in any age group and, as much as I have no fondness for genre, the schwannomas occur more frequently patients between the second and fifth decades of life, presenting a slight preference for the female gender, with a ratio of 1.6:1 when compared to male 1 .…”