Plexiform Unicystic Ameloblastoma - A Diagnostic Dilemma

Case Report

J Dent & Oral Disord. 2021; 7(2): 1160.

Plexiform Unicystic Ameloblastoma - A Diagnostic Dilemma

Rai DV¹*, Guttal KS², Hallikeri K³ and Burde KN²

1Department of Oral Medicine and Radiology, AJ Institute of Dental Sciences, India

2Department of Oral Medicine and Radiology, SDM College of Dental Sciences and Hospital, India

3Department of Oral and Maxillofacial Pathology, SDM College of Dental Sciences and Hospital, Dharwad, India

*Corresponding author: Devishree Vishpal Rai, Department of Oral Medicine and Radiology, AJ Institute of Dental Sciences, Mangalore, India

Received: March 23, 2021; Accepted: April 14, 2021; Published: April 21, 2021


The 2nd most common tumor of odontogenic origin is Ameloblastoma which develops from epithelial cellular elements and dental tissues in various phases of development. It is a slow-growing, persistent and locally aggressive neoplasm of epithelial origin, affecting the posterior area of lower jaw in 80% of cases. Unicystic Ameloblastoma (UA) is one of the less encountered variants of Ameloblastoma. Radiographically it mimics many of the odontogenic cysts and tumors and hence becomes difficult to arrive at a definitive diagnosis. We report here a case of plexiform unicystic variant of ameloblastoma in a 26 years old male patient.

Keywords: Unicystic; Ameloblastoma; Plexiform; Carnoy’s solution; Mural

Case Presentation

A 26 years old male patient had come to our department of Oral medicine and radiology with a chief complaint of painless swelling in the lower right back region of the jaw in the last five months. In the history of presenting illness, patient said that he first noticed the swelling five months back which gradually increased to present size. Extraoral examination revealed that there was mild facial asymmetry on the lower 1/3rd of the face on the left side with diffuse swelling measuring about 1×1.5 cm extending anteroposteriorly 1 cm away from corner of mouth to angle of mandible & superioinferiorly from tragus of ear to lower border of mandible (Figure 1). Color and texture of the overlying skin was normal. On palpation, there was no tenderness and local rise in temperature. There was no evidence of lymphadenopathy. On intraoral examination, bony hard swelling was present extending from 47 to retromolar region with expansion of buccal and lingual cortical plates with no tenderness (Figure 2). 48 was missing. No discharge was present from the region. Patient had no relevant past medical and dental history. A provisional diagnosis of benign odontogenic cyst was given. Differential diagnosis of Dentigerous cyst, Odontogenic keratocyst and Ameloblastoma were considered.