Subungual Ganglion Cyst Mimicking Glomus Tumor

Subungual masses accompanying nail deformity are of common occurrence and uniquely confirmed by histopathologic examination postoperatively. Although glomus tumor is most frequently diagnosed with its specific clinical triad, other rarer diagnoses have also been reported. Though ganglion cysts are predominantly found around the distal phalangeal joint as a mucous cyst and myxoid cyst, they might also appear as a subungual mass accompanied by nail deformity thereby mimicking the glomus tumor. A 54-year-old woman visited our outpatient clinic with nail deformity and pain on the tip of the right thumb. She had a history of nail root injury on her right thumb which occurred 3 months back at a nail shop. Physical examination revealed a convex point with tenderness on the right thumbnail. Doppler ultrasonography revealed the presence of 0.43×0.26×0.53 cm3 sized non-specific cystic lesion with hypoechogenicity and no abnormal vascularity. Complete excision of the cyst was performed and histopathology revealed a ganglion cyst. Subungual ganglion cyst is rarely occurred and known to be usually asymptomatic. Herein, we report a case of ganglion cyst of subungual area which was mistakenly diagnosed as a glomus tumor preoperatively.

Large Mucocele in the Labial and Buccal Mucosa

A26-year-old woman presented to the maxillofacial surgery clinic with painless oval shape lesion (Panel A, arrow) arisen from the lower lip and extended to the buccal mucosa. According to the patient, the mass arose after repeated trauma (biting) of the mucosa (Panel B, arrowhead) approximately 3 months ago. Once the patient noted that when she bit the mass, it`s emptied, but then began to grow again. Upon intraoral examination the lesion measured 1 × 1.8 cm in size. Palpation showed its soft and spongy texture. No bluish pattern of the surface was noted. B-mode (Panel C) and power Doppler (Panel D) ultrasound demonstrated cystic, avascular lesion measuring 1.71 × 0.92 cm with echogenic content (asterisk), no signs of echogenic debris, and distinct margins. Acoustic shadowing behind the hyperechogenic vestibular surface of the lower teeth is labeled by circles. The depth of the cropped sonograms is 1.56 cm. Mucocele of the oral cavity (synonyms: oral mucocele, mucous cyst, retention cyst, retention cyst of the minor salivary gland, mucous retention cyst) is a cystic lesion of the minor salivary gland due to its duct alternation/inflammation and subsequent accumulation of saliva. Differential diagnostics of mucocele is usually performed with other similar oral masses: lipomas, lymphangiomas, and hemangiomas. Removal of mucocele includes the excision of mucous cyst associated overlying mucosa, own glandular tissue and other minor salivary glands which are visualized in the wound. Histopathologically, two types of oral mucocele are distinguished: retention and the more often, extravasation variant. Summarizing, despite the majority of mucocele cases presented with mucosa surface color ranged from deep blue to light blue, our case clearly shows a mucocele with a pink color of mucosa above. Recurrence is a complication usually associated with a violation of the operation technique.