Home | About us | Editorial board | Ahead of print | Current issue | Archives | Search | Submit article | Instructions | Subscribe | Advertise | Contact us |  Login 
National Journal of Maxillofacial Surgery
Print this page Email this page Small font sizeDefault font sizeIncrease font size
Users Online: 71

Table of Contents
Year : 2019  |  Volume : 10  |  Issue : 2  |  Page : 270-273  

Maxillary and mandibular unusually large radicular cyst: A rare case report

Department of Oral and Maxillofacial Surgery, Yenepoya Dental College, Yenepoya University, Mangalore, Karnataka, India

Date of Submission01-Feb-2018
Date of Acceptance28-May-2019
Date of Web Publication12-Nov-2019

Correspondence Address:
Dr. Vinayakrishna Kolari
Department of Oral and Maxillofacial Surgery, Yenepoya Dental College, Yenepoya University, University Road, Deralakatte, Mangalore - 575 018, Karnataka
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/njms.NJMS_6_18

Rights and Permissions

Radicular cysts are the most common odontogenic cyst. It is an inflammatory cyst associated with the root apex of a nonvital tooth. Most radicular cysts are small but can reach a large size causing displacement of surrounding structures. Here, we present a rare case of huge radicular cyst in both maxilla and mandible in a 36-year-old patient.

Keywords: Mandible, massive lesion, maxillary sinus, radicular cyst

How to cite this article:
Kolari V, Rao H T, Thomas T. Maxillary and mandibular unusually large radicular cyst: A rare case report. Natl J Maxillofac Surg 2019;10:270-3

How to cite this URL:
Kolari V, Rao H T, Thomas T. Maxillary and mandibular unusually large radicular cyst: A rare case report. Natl J Maxillofac Surg [serial online] 2019 [cited 2020 Jul 4];10:270-3. Available from: http://www.njms.in/text.asp?2019/10/2/270/270724

   Introduction Top

The term “cyst” is derived from the Greek word, “kystis,” meaning, “sac or bladder.”[1] A cyst is defined as a pathological cavity having fluid, semi-fluid, or gaseous contents, which is not created by accumulation of pus (Kramer, 1974).[2] The bones with the highest prevalence of cysts in the human body are mandible and maxilla due to the abundant amount of epithelial remnants in the jaws. Cysts are classified into odontogenic and nonodontogenic based on the tissue they arise from.

Odontogenic cysts are derived from (1) tooth germ, (2) epithelial rests of Malassez, (3) reduced enamel epithelium of a tooth crown, (4) remnants of the dental lamina, or (5) possibly the basal layer of oral epithelium. Among the various types of odontogenic cysts observed,[3] radicular cyst is one of the most common, which is, in turn, a subtype of inflammatory cyst. The progression of the cyst is initiated by pulpal necrosis followed by periapical inflammatory reaction. In most of the cases, the lesion is discovered as an incidental finding during radiographic examination.

   Case Report Top

A 36-year-old female patient [Figure 1] was reported to the Department of Oral and Maxillofacial Surgery, Yenepoya Dental College, Mangalore, with a chief complaint of swelling in the upper right front and lower right back region of the mouth. She was confronted with a slow progression of the lesion for the past 1 year. On clinical examination of the extraoral features, there was a mild swelling on the right side of her face, with the skin appearing to be normal. While palpation, the swelling was hard, and mild tenderness was felt with the expansion of buccal cortical plate and egg shell crackling with respect to the right mandibular region. Intraorally, a well-defined swelling was present on the buccal vestibule of the right mandible and maxilla measuring about 4 cm × 3 cm extending in the region of root stump of 46 and 13, respectively, with vestibular obliteration.
Figure 1: Preoperative extraoral photograph

Click here to view

Radiographically [Figure 2], a well-defined homogeneous radiolucency of size 5 cm × 4 cm with sclerotic border was observed in the right side of the maxilla extending from the distal aspect of the middle one-third of the root of the canine to the mesial aspect of the middle one-third of the root of the second premolar tooth. The upper margin of lesion was smooth and pushing the anterior wall of the maxillary sinus. Tooth 13 was tender on percussion. In the mandible, a well-defined radiolucency of size 3 cm × 2 cm with sclerotic border was noted extending from distal aspect of apical one-third of root of 45 to medial aspect of one-third of root of 48. The inferior alveolar canal was not involved, and the inferior margin of lesion appeared smooth. Tooth 46 was tender on percussion with well-defined radiolucency, and sclerotic border of size <1 cm was noted in relation to 23, 24, 25, and 26.
Figure 2: Preoperative orthopantomogram of patient

Click here to view

On the basis of clinical and radiographical findings, the provisional diagnosis of radicular cysts was remarkably made of both maxillary and mandibular lesions.

Under local anesthesia, the mandibular lesion was exposed by raising the mucoperiosteal flap as planned enucleation of the cyst in the mandibular body with extraction of offending root stump, i.e., 46 along with 42, 43, 44, 45, and 48, was performed during the first sitting. Flap closure was done with 3-0 silk suture and recalled after 7 days for suture removal. After 3 weeks, the cyst in relation to the right maxillary sinus was exposed and enucleated along with extraction of 12, 13, and 14. The cyst was enucleated in toto [Figure 3]. Thorough curettage was done. Flap closure was done with 3-0 silk suture and recalled after 7 days for suture removal. Postoperative healing was uneventful.
Figure 3: Gross specimen of cyst lining along with the teeth in relation to the right maxilla

Click here to view

The histopathological report of both the surgical specimens was proved to be a radicular cyst. The report of mandibular lesion came as radicular cysts with fibrocellular cystic capsule with mild-to-moderate chronic inflammatory cells chiefly lymphocytes, plasma cells, and foamy macrophages. In case of maxillary lesion, the reports said inflammatory infiltrate, predominantly lymphocytes and plasma cells. Odontogenic rests were also evident in this section.

   Discussion Top

Radicular cyst is one of the most common and significant types of cystic lesion affecting the jaw accounting about 52%–68% of all the incidences which affect the jaw.[4],[5] Radicular cyst occurs more commonly between the third and fifth decades, with male predilection, and is more frequently found in the anterior maxilla relative to other parts of the oral cavity.[6] In general, radicular cysts originate from a carious tooth. Sequel continues as pulpal necrosis,[7] periapical abscess, or even a granuloma and finally leads to a persistent chronic infection, thus forming a periapical cyst.[8]

The pathogenesis of radicular cysts comprises three distinct phases: the phase of initiation, the phase of cyst formation, and the phase of enlargement.[9] The teeth associated with the cyst are always nonvital and may be discolored too.[9] It is clinically exhibited as buccal or palatal swelling in the maxilla and buccal in the mandible. Initially, it tends to be a bony hard enlargement, but as the cyst develops in size, the bone gets resorbed and becomes thin, and a characteristic springiness or egg shell crackling is perceived on the swelling and becomes fluctuant.[10]

Most radicular cysts are small, ranging in size from 0.5 to 1.5 cm. In the maxilla, sometimes, a cyst associated with molars or premolars may enlarge to such a point that it encroaches on almost the entire sinus, and the residual sinus space may appear very thin.[11]

The maxillary cyst in our case was of size around 4 cm × 3 cm. The cyst cortex and the sinus were distinguishable from one another unlike in many other cases reported in literature. Thin and cancellous nature of the maxillary bone as compared to dense mandible explains the formation of giant radicular cyst in relation to the maxillary sinus.

Joshi et al.[6] and Bava et al.[12] have reported cases of bilateral mandibular cyst, but as in our case, the presence of cyst in both maxilla and mandible is rare.

Histologically radicular cysts appear to be partially or completely lined by nonkeratinized stratified squamous epithelium. Keratinization is reported in few cases as minimal as 2%, and when present orthokeratinization layer is profound than parakeratinized walls with dense, mixed inflammatory infiltrate, rich in plasma cells and lymphocytes. The wall is fibrous and will often contain numerous capillaries, particularly in those areas adjacent to the epithelial lining [11] [Figure 4].
Figure 4: Photomicrograph showing nonkeratinized stratified squamous epithelium with underlying connective tissue stroma showing severe chronic inflammatory cell infiltrate

Click here to view

Kay and Kramer have reported the transformation of radicular cyst into squamous carcinoma.[13],[14] This is usually associated with long-standing cases, but in our case, there was not any histopathological evidence of epithelial dysplasia.

   Conclusion Top

The choice of treatment depends on factors such as extension of the lesion, its relation to the surrounding structures, clinical characteristics of the lesion, and systemic condition of the patient. The surgical treatments for radicular cyst include total enucleation, marsupialization or decompression,[15],[16] or combination of these techniques. The above-mentioned rare case report of large radicular cyst has been successfully treated by surgical enucleation and curettage.

Declaration of patient consent

The authors certify that they have obtained all appropriate patient consent forms. In the form the patient(s) has/have given his/her/their consent for his/her/their images and other clinical information to be reported in the journal. The patients understand that their names and initials will not be published and due efforts will be made to conceal their identity, but anonymity cannot be guaranteed.

Financial support and sponsorship


Conflicts of interest

There are no conflicts of interest.

   References Top

Nair PN. New perspectives on radicular cysts: Do they heal? Int Endod J 1998;31:155-60.  Back to cited text no. 1
Shear M, Speight PM. Cysts of the Oral and Maxillofacial Region. 4th ed., Ch. 1. Oxford: Blackwell Munksgaard; 2007.  Back to cited text no. 2
Banu Gurkan Koseoglu, Belir Atalay, Mehmet Ali Erdem Odontogenic cysts: A clinical study of 90 cases: Journal of Oral Science 2004; 46:253-7.  Back to cited text no. 3
Riachi F, Tabarani C. Effective management of large radicular cysts using surgical enucleation vs. marsupialisation. Int Arab J Dent 2010;1:4-4-51.  Back to cited text no. 4
Latoo S, Shah AA, Jan MS, Qadir S, Ahmed I, Purra AR. Radicular cyst. JK Sci 2009;11:187-9.  Back to cited text no. 5
Joshi NS, Sujan SG, Rachappa MM. An unusual case report of bilateral mandibular radicular cysts. Contemp Clin Dent 2011;2:59-62.  Back to cited text no. 6
[PUBMED]  [Full text]  
Lin LM, Huang GT, Rosenberg PA. Proliferation of epithelial cell rests, formation of apical cysts, and regression of apical cysts after periapical wound healing. J Endod 2007;33:908-16.  Back to cited text no. 7
Weber AL, Kaneda T, Scrivani SJ, Aziz SJ. Tumors and nontumorous lesions. In: Som PM, Curtin HD, editors. Head and Neck Imaging. 4th ed.. St. Louis, MO: Mosby; 2003. p. 930-4.  Back to cited text no. 8
Lustmann J, Shear M. Radicular cysts arising from deciduous teeth. Review of the literature and report of 23 cases. Int J Oral Surg 1985;14:153-61.  Back to cited text no. 9
Shear M. Cysts of the Oral Regions. 3rd ed. Boston: Wright; 1992. p. 136-70.  Back to cited text no. 10
Marx RE, Stern D. Oral and Maxillofacial Pathology: A Rationale for Diagnosis and Treatment. Illinois: Quintessence Publishing; 2003. p. 574-9.  Back to cited text no. 11
Bava FA, Umar D, Bahseer B, Baroudi K. Bilateral radicular cyst in mandible: An unusual case report. J Int Oral Health 2015;7:61-3.  Back to cited text no. 12
Kay LW, Kramer IR. Squamous-cell carcinoma arising in a dental cyst. Oral Surg Oral Med Oral Pathol 1962;15:970-9.  Back to cited text no. 13
Swinson BD, Jerjes W, Thomas GJ. Squamous cell carcinoma arising in a residual odontogenic cyst: Case report. J Oral Maxillofac Surg 2005;63:1231-3.  Back to cited text no. 14
Gonzalez SM, Spalding PM, Payne JB, Giannini PJ. A dentigerous cyst associated with bilaterally impacted mandibular canines in a girl: A case report. J Med Case Rep 2011;5:230.  Back to cited text no. 15
Mihailova H, Nikolov VL, Slavkov SV. Diagnostic Imaging Dentigerous Cyst of Mandible. J IMAB – Annual Proceeding Scientific Papers; 2008.  Back to cited text no. 16


  [Figure 1], [Figure 2], [Figure 3], [Figure 4]


    Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
    Access Statistics
    Email Alert *
    Add to My List *
* Registration required (free)  

  In this article
   Case Report
    Article Figures

 Article Access Statistics
    PDF Downloaded184    
    Comments [Add]    

Recommend this journal