introduction: aneurysmal bone cysts (abc) are extremely rare in the head and neck region and even rarer in sinuses.  abc is a benign multicystic mass that is locally-destructive and rapidly expandable. hemorrhagic fluid content (like in this case) and septated appearance are the characteristic feature of abc. established treatment options for abcs include sclerotherapy, embolization, radiothera...

bronchogenic cyst is a result of abnormal development   of the ventral foregut presents as a discrete mass. most commonly, it is appeared in the middle mediastinum and rarely is seen in adults. we report a 35-year-old woman who was asymptomatic and incidentally was found with a mass in chest radiograph.

The incidence of mucous and ciliated cells in epithelial linings was examined among odontogenic inflammatory cysts (radicular cysts) and developmental cysts (dentigerous and primordial cysts). Mucous cells were found in 20.8% of all cysts examined, while ciliated cells were found in 11.4%; however, ciliated cells were always accompanied by mucous cells. The incidence of mucous cells in radicula...

Choledochal cysts are a congenital anomaly, and they show dilatation of the intraor extrahepatic biliary tree. These cysts are uncommon in Western countries, but are not rare in Asian countries. Choledochal cysts are classified into five groups based on location or shape of the cysts. Types I and IV-A cysts are the most common types, which are associated with anomalous pancreaticobiliary juncti...

Popliteal cysts, or Baker cysts, are considered rare in children and may exhibit particular features, as compared with adults. We studied data from 80 paediatric patients with 55 Baker cysts, examined over a period of 7 years, and correlated clinical presentation with findings on ultrasonography and MRI. Prevalence of popliteal cysts was 57% in arthritic knees, 58% with hypermobility syndrome, ...

a 10 year old boy presented with swelling on the temporal side of the left eyebrow since birth. with the diagnosis of angular dermoid, we chose subcutaneous endoscopic excision for its treatment, as direct excision of dermoid cysts of the eyebrow might have caused a prominent facial scar for him, which can be completely avoided with an endoscopic approach that places the incision in the hair-be...

Pancreatic cysts are a complex group of benign, malignant, and premalignant lesions with diverse clinical, radiologic, and pathologic features. It is no longer believed that the vast majority of pancreatic cysts are pseudocysts, inclusion cysts, or benign neoplastic cysts that do not require follow-up. Our knowledge and understanding of neoplastic pancreatic cysts in general, and mucinous pancr...

Three patients with the central type of neurofibromatosis, who on CT showed multiple subependymal calcified deposits, are presented. The literature on intracranial non-tumourous calcifications in neurofibromatosis is briefly reviewed. On the basis of our findings and the literature, it is proposed that such intracranial calcified deposits may be part of the neurofibromatosis syndrome and are ca...

conclusions we reported a rare case of large residual cyst. dental practitioners should consider this lesion in the differential diagnosis of radiolucent lesions of the jaw bone. case presentation a 59-year-old iranian man complaining of a dull pain in his left side of the mandible after falling down one month ago was referred to the department of oral and maxillofacial pathology, hamadan unive...