Thymic cysts are a rare cause of benign neck mass in adults and are usually diagnosed after surgery. Their prevalence is less than 1% of all cervical masses, and they are generally noted in the first decade. We report a case of a 34 year old female with a lateral cervical mass, describing ultrasound and CT features, intraoperative findings and histopathology. Thymic cysts are uncommon lesions causing neck swelling, often misdiagnosed preoperatively and should be included in the differential diagnosis of cervical cystic masses.

Smooth muscle neoplasms are uncommon, particularly if we are talking about the mammary gland. We report a case a case of a 38-year-old female with an 11.6 mm right breast nodule. A wire-guided surgical excision was performed and the histopathologic and immunohistochemical studies revealed a leiomyoma. There are no radiological criteria to allow the diagnosis of smooth muscle neoplasm and histopathological evaluation is the definitive diagnostic method. Despite being a benign neoplasm, it may mimic malignancies and therefore present a diagnostic challenge.