The purpose of this report is to highlight the histopathologic appearance of the mandibular simple bone cyst (SBC) – a pathologic condition which continues to stay an enigma for a lot of colleagues. Cone-beam computed tomography of a two-chamber SBC (ie, multilocular type) of the mandibular body in a 41-year-old white female is analyzed. Brief literature review is also performed giving the possibility to understand all intraoperative appearances of the SBCs and contemporary techniques of its management.

We present a unique case of a vegetal foreign body retrograde migration to the intraglandular duct of the submandibular gland with a developing of foreign body-induced sialolithiasis in a 61-year-old woman. Analysis of ultrasound examination and operation are performed. Our foreign body`s case represents an intermediate stage of complete sialolith formation around the foreign body nidus (synonym: scaffold). The paper summarizes the analysis of 28 cases with foreign body-induced sialoliths (27 cases from literature and a case of our team). Literature review which was based on the studies published during the last 124 years gave a possibility to classify the development of the ‘foreign body-induced sialolithiasis’ in 4 consecutive stages. Our case of the foreign body-induced sialolithiasis represents a second stage of this pathologic process when nidus is partially covered by calcifications.

Warthin’s tumor (WT), which is also known as papillary cystadenoma lymphomatosum, monomorphic parotid adenoma, adenolymphoma, cystadenolymphoma, and branchiogenic adenoma, is to be differentiated (in surgical practice) from other parotid masses. The purposes of our retrospective case series study are: (1) to describe ultrasound morphology (sonomorphology) of the WT in patients referred to our hospital, (2) based on the presented cases to propose a supplement to the Matsuda and colleagues’ classification (2017) of anechoic area patterns of the WT, and (3) to expand the knowledge of oral and maxillofacial surgeons for the preoperative ultrasonographic verification of the WT and for choosing the most appropriate surgical technique. Over three years, 5 patients (mean age, 65.4 years) with parotid WT had been examined with gray-scale, color, and power Doppler ultrasonography. Cystic components are visualized in all five WT cases but in different proportions. Case 1 and 4 showed the presence of septations. According to Matsuda and colleagues’ (2017) classification of anechoic area patterns, in our cases the US patterns of the WTs belong only to Group 3 (i.e., with large anechoic areas) (n = 4) and Group 4 (multiple and sponge-like anechoic areas) (n = 1). Moreover, based on the presented five cases, we offer an addition to the classification of Japanese authors. In conclusion, our supplement to Matsuda and colleagues’ classification of anechoic area patterns of the WT can help surgeons around the globe to be more accurate in preoperative verification of cystadenolymphoma. This case series illustrate the growing importance of ultrasonography in the professional life of oral and maxillofacial and head and neck surgeons. Based on the cystic structure of this benign tumor and the ultrasound appearance presented in our case series, we propose to continue using the term “cystadenolymphoma” with a purpose to emphasize the tumor`s structure.

A 43-year-old man was referred to center of maxillofacial surgery and dentistry with a very painful and severe swelling in the left submandibular area, redness of the neck, fever for 1 week, and slight worsening of swallowing. According to history of patient`s complaints, 10 days ago in the area of the present swelling, several movable lesions in the depth of soft tissue were noted. Longitudinal gray scale ultrasound (US) (Panel B, US using linear probe; Panel C, US using convex probe) showed subcutaneous oedema (white asterisk), large collection of well-defiened hypoechoic fluid (indicated by ‘+’ and ‘×’ calipers) under the platysma muscle (arrowheads). Movement of the fluid during dynamic compression was noted. The usual artifact for fluid-contained objects, posterior acoustic enhancement, is indicated by black asterisks. No ultrasound signs of gas loculations in the soft tissue and fluid were found. This allows assuming the absence of gas-forming organisms. Also, the enlarged lymph nodes were noted at the left neck. The diagnosis of submandibular abscess due to non-odontogenic inflammation and suppurate fusion of the lymph nodes was established. The abscess was lanced, and drained using submandibular approach. 18 ml of purulent material was obtained. At the next morning after surgery, the patient felt significant improvement; 1 week follow-up the patient was clinically well.