Peritoneal inclusion cysts are uncommon lesions that usually occur in the pelvis of reproductive-age females. The case of a 7-year-old girl with an inflamed peritoneal inclusion cyst with unusual right paracolic localization and congenital lower extremity superficial and deep venous valve agenesis is presented. Inflammation of the peritoneal inclusion cyst was responsible for the signs of acute...

A key based on cyst and juvenile characters is given for identification of 12 valid Heterodera species in the H. avenae group. A compendium providing the most important diagnostic characters for use in identification of species is included as a supplement to the key. Cyst characters are most useful for separating species; these include shape, color, cyst wall pattern, fenestration, vulval slit ...

Dentigerous cyst is the most frequently encountered odontogenic cyst which is epithelial lined and is developmental in origin. It usually affects young males below 30 years of age. Thus, its early diagnosis and treatment with rehabilitation becomes very important. Here a series of three cases with rare involvement of impacted maxillary lateral incisor, maxillary premolar and mandibular canine i...

The characteristics and incidence of dermoid cysts of the floor of the mouth are reviewed. The epidermoid cyst in the sublingual (genioglossal) position is unique because of its size and the advanced age of presentation. The use of preoperative lateral xerography was beneficial in determining the extent of the lesion and in visualizing the partial obstruction of the upper airway. An intraoral s...

This article presents the procedures that must be considered for periapical cyst repair after nonsurgical endodontic treatment. The case of a periapical cyst associated to the left maxillary lateral incisor is reported. Nonsurgical root canal therapy was performed and lesion healing was confirmed radiographically after 24 months. Differential diagnosis, endodontic infection control, apical fora...

A 61-year-old woman had bi lateral sensorineural hearing loss and difficulty with balance but no vertigo. Neurologic examination showed a right-sided peripheral facial nerve paresis, nystagmus on right and left lateral gaze, hypesthesia in the territory of the right trigeminal nerve with corneal hypesthesia, deviation to the right at toe walking, and positive Romberg sign. CT (Fig. 1 A) of the ...

We present an unusual case of a 20-year-old woman with a left-sided infected branchial cyst causing an ipsilateral 12th nerve palsy. This resolved upon excision of the cyst. Branchial cysts, infected or otherwise, should be high in the differential of a lateral cystic neck mass. This and other cases discussed demonstrate that the presence of cranial nerve palsies does not necessarily indicate a...

Esophageal duplication cyst is a rare congenital embryonal gastrointestinal (GI) malformation which is diagnosed most commonly in childhood. In adults, they can present with a variety of symptoms ranging from dysphagia, chest pain, epigastric discomfort, and vomiting to more serious complications including infections, hemorrhage, and ulcerations. A 30-year-old male presented with gradually prog...

Lymphomas of the oral cavity represent 5% of all lymphomas. They usually occur in immunocompromised patients. Lymphoma arising within a single bone, without visceral or lymph node involvement, is known as primary intraosseous lymphoma. It is a rare condition and constitutes 3.1% of malignant bone tumors and 5% of extranodal lymphomas. Primary lymphoma of the jaw is seldom seen and it is often m...

We describe a fetus with agenesis of the corpus callosum (ACC) and Dandy-Walker malformation that developed a frontal paramidline cyst late in gestation. The interval appearance of the cyst occurred in concert with increasing size of the lateral ventricles, which supports the hypothesis that cysts associated with ACC can develop with increasing intraventricular pressure. Recognition of the pote...