Introduction: Unilateral Condylar Hyperplasia (UCH) is an uncommon condition resulting in facial asymmetry and malocclusion.At the time of diagnosis, an accurate evaluation of condylar activity through bone SPECT is necessary to determine the most appropriate surgical treatment.The Authors present a case of a UCH recurrence after orthognathic surgery in order to discuss about the clinical role of condylar SPECT in UCH therapeutic management.Case report: A 60-years old female patient was referred to the Department of Maxillo-Facial Surgery of Sapienza University of Rome for a relapse of mandibular laterodeviation.At the age of 24, she underwent orthognathic surgery after a diagnosis of UCH without condylar SPECT evaluation.As part of our clinical routine, condylar SPECT was performed and a significant difference in radiotracer uptake (20%) was found between the left condylar region and the contralateral one.She underwent high condilectomy and Bilateral Mandibular Sagittal Osteotomy.She had no evidence of recurrence till today.Discussion: Optimal surgical management of UCH is still controversial.In the diagnostic phase of UCH, a functional evaluation of condylar growth status by bone SPECT is an essential step to avoid long-term recurrence of mandibular asymmetry.On the basis of condylar metabolic activity, UCH can be classified in an active phase or a stationary phase.Clinical and functional evaluation of patients with mandibular asymmetry should be standardized in order to plan the most appropriate surgical and orthodontic treatment.

Hemangioma is the most common benign liver tumor and the second most common liver tumor after metastases. Large hemangiomas are often heterogeneous. When they exceed 4 cm in diameter, they are termed giant hemangiomas. These giant hemangiomas often present heterogeneous patterns. These heterogeneous appearances are shown because of intratumoral changes due to several degenerative phenomena. PET/CT is reported to be useful for the differentiation of benign from malignant liver lesions. We report the case of a large hepatic hemangioma characterized by high FDG uptake.

Surgical approach of single parathyroid adenoma treatment is turning to a less invasive surgery, allowing us to obtain better aesthetic results, reduction of duration of surgical operation, reduction of post-operative morbidity and hospital stay. Tc99m-sestaMIBI scintigraphy is mainly performed for preoperative localization of parathyroid adenomas. Our technique is instead based on the possibility to inhibit the interference of Tc99m-sestaMIBI uptake of the thyroid gland by means of the administration of Lugol's solution. Indeed, to confirm the identification and removal of the hyperfunctional parathyroid, it is accepted as adequate an ex vivo radioactivity count of the adenoma 20% or 40% greater than the value of the post-excisional background radioactivity, in association or not with intraoperative measurement of PTH. This method allows us to perform surgery with no timetable restriction, and to clearly distinguish the radioactivity of parathyroid adenoma from that of the surrounding tissues and thyroid gland.