Parathyroid carcinoma, a rare cause of primary hyperparathyroidism.

A 45 year-old woman who presented with non-specific neck and shoulder pain, was found to have mild hypercalcaemia, markedly elevated parathyroid hormone levels, and an irregular parathyroid gland on imaging. The patient underwent a parathyroidectomy and the pathology report came back positive for parathyroid carcinoma with muscular invasion. Parathyroid carcinoma is an exceptionally rare cause of primary hyperparathyroidism and can have a poor prognosis due to metastases and a high propensity to recur after resection.

Alveolar soft-part sarcoma of the tongue in a 17-month-old.

Alveolar soft-part sarcoma (ASPS) is a rare and often fatal tumor. Overall survival rates have been reported to be 62% after 5 years, 42% after 10 years, and 18% after 20 years. ASPS accounts for 5% of all pediatric soft-tissue sarcomas other than rhabdomyosarcomas.

Congenital thoracic cord segmental amyelia: a rare manifestation of segmental spinal dysgenesis.

Segmental spinal dysgenesis (SSD) is a rare congenital abnormality in which a segment of the spine and spinal cord fails to develop properly. We report a case of a 4-year-old female child who was born prematurely with a permanent neurological deficit in the lower limbs and sphincter incontinence. Radiological investigations revealed segmental agenesis of the thoracic spinal cord (D8-D11 vertebral levels) with an associated vertebral bony anomaly.

Cerebellopontine angle epidermoid tumor presenting with 'tic convulsif' and tinnitus--case report.

A 22-year-old female presented with a cerebellopontine angle epidermoid tumor manifesting as a rare combination of hemifacial spasm, trigeminal neuralgia, and tinnitus. Magnetic resonance imaging demonstrated the tumor distorting the brainstem and the fourth ventricle. The tumor was almost completely resected and the seventh-eighth cranial nerve complex was decompressed by mobilizing the anterior inferior cerebellar artery loop.

Developmental deep venous system anomaly associated with congenital malformation of the brain.

We report a rare case of developmental deep venous system anomaly. The great vein of Galen and the straight sinus were absent. Both internal cerebral veins and the basal veins of Rosenthal drained into a large frontal interhemispheric falcine vein, which eventually drained into the superior sagittal sinus.