OBJETIVO: O presente artigo descreve os aspectos clínicos, radiológicos e histopatológicos de um caso extremamente raro de cisto periodontal lateral, bem . 1 ; 22(3): set-dez Cisto lateral: relato de caso Gracielle Rodrigues Tavares * Júlia Magalhães da Costa Lima * Sócrates Steffano da Silva Tavares. Diagnóstico e tratamento de cisto periodontal lateral: Purpose: Lateral periodontal cyst (LPC) is an uncommon type of odontogenic cyst of development.

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The botryoid odontogenic cyst is a rare asymptomatic lesion characterized by its typical multilocular pfriodontal similar to a bunch of grapes commonly affecting the mandible bicuspids and canine region. The possibility of this lesion representing a clinical variation of the lateral periodontal cyst is source of discussion and doubt among many authors. Our article reports a rare case of the polemic odontogenic preiodontal and presents considerations related to its etiopathogenic, diagnostic and therapeutic aspects.

Its main characteristics are the typical multilocular aspect, similar to a bunch of grapes, justifying its terminology botryoid: Other evidences suggest the possibility of this lesion represent a variation of the lateral periodontal cyst LPCpromoting discussion and doubt among authors.

Perodontal paper presents a case report of this rare and polemic odontogenic cyst, contributing to the small number of publications of this pathology in the literature. Moreover a discussion with focus on its etiopathogenic, diagnostic and therapeutic considerations is presented by the authors.

A male, 44 years old, melanoderma, came up complaining of a swelling periodonyal the anterior left region of the mandible for already two months. The intra-oral examination showed a discreet but consistent and hard swelling adjacent to the canine without alterations in the local mucosa.

Periapical and oclusal radiographies demonstrated a radiolucent multilocular image of approximately 20 mm over the canine root with extension to the adjacent incisive teeth Figures 1 and 2. Dental vitality test showed positive result of the mentioned teeth, discarding inflammatory origin. Considering the possibility of a BOC, an excisional biopsy using enucleation followed by peripheral ostectomy technique was performed.

During surgery, strong adhesion periofontal the cystic capsule to the canine root was observed. The surgical specimen was sent to histopathologic examination in which was observed a multilocular lesion 15 x 17 mm, characterized by multiple cysts and separated by discreet connective tissue septa associated periodontl the capsule Figure 3.


The epithelial boundary of these small cysts showed regions of nodular enlargement composed by glycogenrich clear cells Figure 4. In face of this, the final diagnosis was of a BOC. After 15 days, a new dental vitality test was accomplished and the canine vitality was maintained.


Postoperative periapical radiography taken after 60 days demonstrated normal bone healing process. The patient continues in follow-up in case of any recurrence periodojtal observed.

There are many doubts related to the etiopathogenesis of the BOC and its condition as an individual entity. The hypothesis of such lesion representing a multilocular variation of the LPC is defined by some authors based in clinical and histopathologic similarities Both present predilection to the inferior canine and bicuspid region, as presented in the present case, and demonstrate epithelium with clear cells nodule The participation of the reduced enamel epithelium or the epithelium rests of Malassez was suggested in the etiopathogenesis of these lesions 3.

LateraL periodontaL cyst: case report Cisto periodontal lateral

However, recent publications defend the cystic degeneration of dental lamina rests, found in the alveolar ridge, in function of the observed histopathologic characteristics 4. The determining point that supports this theory is the presence of clear cells in the epithelial boundary of these cysts, similar as in the dental lamina. On the other hand, those cells are not identified in dentigerous and radicular cysts, which present etiopathogenesis related to the reduced epithelium and the epithelium rests of Malassez, periodontwl.

The histopathologic characteristics of the BOC are quite similar to the LPC, differing only in the multilocular aspect. Multilocular lesions are characterized by the presence of cavities, cystic or not, separated by connective or osseous septa. In the case of the BOC, cystic cavities of different sizes and quantities are limited by fine connective tissue septa contiguous to the capsule. Such aspect is explained by epithelium nodule growth towards the capsule, with subsequent cystic degeneration 1or by new cysts formation from the proliferative stimulation of adjacent epithelium remnants Although this characteristic is essential to the histopathologic diagnosis of the BOC, the eventual damage of this aspect during surgery or by laboratorial manipulation may difficult its differentiation from the LPC 6.

The BOC generally occurs in older patients and shows greater proportions that the LPC, being sometimes observer in edentulous patients 2,5. Although these differences indicate a distinction between these two entities, a critical analysis is necessary.

As the development of a multilocular lesion presents slow growth, a LPC not diagnosed in the youth may present later, between the fifth and seventh decades, larger and with a botryoid aspect, as described in the literature 4,7.

The possibility of identification of a BOC in edentulous areas also does not mean much since a residual LPC may continue its development after the extraction of the adjacent teeth.

For all of above mentioned reasons, we consider that the BOC and the LPC are a unique nosologic entity in different periods of evolution. However, we believe that is necessary to classify the variant botryoid due to its apparently higher recurrence rate and for its necessary treatment peculiarities.


In these studies, recurrence is observed around ten years after enucleation. Even tough some reports point out the proliferative behavior of the BOC, laterao is believed that the recurrences are related to the difficulty to the complete removal of the lesion due to its multilocular aspect and cissto thin capsule 5,8.

This idea is supported in the histopathologic finds of Phelan et al. To accomplish the therapeutic of the BOC, the complementary treatment of the surgical bed may be cistk after enucleation. As alternatives, the peripheral ostectomy or Carnoy solution application fit perfectly in latrral to eliminate possible remnants of this lesion Although the diagnosis of the BOC is only confirmed after histopathologic examination, clinical, radiographic or macroscopic characteristics suggestible of this lesion may help in the indication of complementary treatment modalities during surgery.

Even periodotnal the use of the techniques, we suggest follow-up for a long period due to the scarce scientific knowledge related to this odontogenic cyst.

The etiopathogenesis of the BOC seems to be related to the degeneration of the dental lamina rests, as nowadays accepted for the LPC. Both lesions have similar characteristics and may represent the same nosologic entity in distinct evolution periods. The tendency for recurrence presented by the botryoid variant might be controlled by surgical complementary approaches, like peripherical ostectomy and application of Carnoy Solution.

All authors provided the conception of the manuscript, acquisition of data, drafting the manuscript and final approval of the submitted version.

Weathers D, Waldron C. Unusual multilocular cysts of the jaw botryoid odontogenic cysts. Mendes RA, van der Wall I. An unusual clinicoradiographic presentation of a lateral periodontal cyst–report of two cases.

Shear M, Pindborg JJ. Microscopic features of the lateral periodontal cyst. Scand J Dent Res. Int J Oral Maxillofac Surg. Lindh C, Larson A.

Lateral periodontal cyst: case report Cisto periodontal lateral: relato de caso

J Oral Maxillofac Surg. Greer RO, Johnson M. Recurrent botryoid odontogenic cyst lateral periodontal cyst. ABSTRACT The botryoid odontogenic cyst is a rare asymptomatic lesion characterized by its typical multilocular aspect similar to a bunch of grapes commonly affecting the mandible bicuspids and canine region. Collaborators All authors provided the conception of the manuscript, acquisition of data, drafting the manuscript and final approval of the submitted version.

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