Epidermoid Renal Cyst - An Unusual Case Report And Review Of Literature

Epidermoid cyst in the kidney is an exceptionally rare entity. Only a few cases have been reported. The aim of reporting this case is to highlight its rarity and to create awareness of the entity as a differential diagnosis of cysts in the kidney. We report a case of a 37-year-old lady who presented with loin pain of 1 year duration. Imaging studies revealed hydroureteronephrosis with multiple calculi and a cyst in the kidney. Histological examination revealed epidermoid cyst

Synovial osteolipoma.

Intraarticular synovial osteolipoma is an extremely rare tumor. Only two cases have been reported earlier to the best of our knowledge. It is a rare histological variant of lipoma, which contains mature lamellar bone. The largest tumor reported so far in the joint is 3 cm × 4 cm. Knee is a most common site. We report a large osteolipoma measuring 12 cm × 10 cm in the knee.

Primary marginal zone B-cell lymphoma of appendix.

Primary lymphomas of appendix are extremely rare tumors. The first case of primary lymphoma of appendix was reported by Warren in the year 1898. Incidence of primary lymphoma of appendix is 0.015% of all gastrointestinal lymphomas. This is a report of primary marginal zone B-cell lymphoma of appendix which presented as appendicular mass. As some cases are incidentally discovered, this case emphasizes that histological examination of all appendicectomy specimens is mandatory.

Paratesticular malignant peripheral nerve sheath tumour: a case report.

Primary malignant peripheral nerve sheath tumours (MPNST) of intrascrotal extra testicular site are extremely rare with only few cases reported in literature. These are highly malignant tumours most often associated with neurofibromatosis. The incidence in general population is 0.001%. A 35-year-old male presented with swelling of the scrotal sac of three months duration. There were no features of neurofibromatosis. The lesion was excised and was diagnosed as MPNST. The patient developed recurrence within two months.