Spontaneous Intra-Parenchymal Rupture of Craniopharyngioma - A Rare Phenomenon

Craniopharyngioma is a relatively benign intracranial tumour that involves sellar and supra-sellar regions. Spontaneous rupture of craniopharyngioma into the sub-arachnoid space or into the ventricles is a rare phenomenon and few cases are reported in literature. We hereby report a case of sellar-suprasellar craniopharyngioma with focal intra-parenchymal rupture into brain causing aggravation of headache in a 12-year-old female child. This complication is a relatively rare phenomenon, which requires attention for early intervention. This was managed by trans-nasal endoscopic trans-sphenoidal surgery. Usually rupture of craniopharyngioma causes chemical meningitis or it can be asymptomatic. Sometimes rupture can cause complete resolution of cyst and symptoms. In the present case, there was only focal rupture and it was into brain parenchyma causing brain oedema with aggravation of headache. Magnetic Resonance Imaging (MRI) in intra-parenchymal rupture of craniopharyngioma has been emphasized in this case report.

Cholesterotic Fibrous Histiocytoma in a Patient with Metabolic Syndrome

Among the many variants of dermatofibroma, dermatofibroma with cholesterol cleft (cholesterotic fibrous histiocytoma) is extremely rare. Here, we describe the case of a 50-year-old male patient with a cholesterotic fibrous histiocytoma on his left lower leg. He presented with a hyperkeratotic nodule 6 mm in diameter with a brown surface on the extensor surface of his left lower leg. The lesion had developed over the course of a few years without any tendency to heal. A skin biopsy performed on the tumor showed histopathological findings compatible with those of dermatofibroma. Interestingly, the lesion included many cholesterol clefts, as well as foamy histiocytes and multinucleated giant cells around them. He had had metabolic syndrome for years. To the best of our knowledge, this is the first report of a cholesterotic fibrous histiocytoma in a patient with metabolic syndrome. We conclude that the altered microenvironment caused by metabolic syndrome, as well as hyperlipoproteinemia itself, may play a role in the pathogenesis of this rare case.

Dentigerous cyst associated with a mesiodens: a case report

Dentigerous cysts are the second most common odontogenic cysts after radicular cysts and are most commonly seen in association with third molars and maxillary canines. Only 5% of dentigerous cysts involve supernumerary teeth, of which mesiodens is the most frequent type. This paper presents a case of dentigerous cyst associated with a mesiodens that caused a painless swelling in the upper lip of an 18-year-old female. The patient was treated surgically by enucleation of total cyst and surgical extraction of mesiodens under local anesthesia.