Pheochromocytoma in a Child without Hypertension: A Contribution to the "Rule of 10s".

Pheochromocytoma (PCC) is a neuroendocrine tumor originating from chromaffin tissue in adrenal medulla. Its diagnosis and treatment are well defined in adults, but experience in children is limited. Children constitute only 10% of reported cases, the average age at presentation being 11 years.

Gastric GIST or gastric schwannoma-A diagnostic dilemma in a young female.

Introduction: Gastrointestinal stromal tumor (GIST) is the commonest mesenchymal tumor of GI tract and 60-70% of it seen in the stomach, whereas Gastric schwannoma is a benign, slow growing and one of the rare neoplasms of stomach. Age distribution, clinical, radiological features and gross appearance of both tumors are similar.

Presentation Of Case: We report a rare case of gastric schwannoma in a 20-year-old girl, who underwent subtotal gastrectomy with the suspicion of a GIST preoperatively but later confirmed to be gastric schwannoma postoperatively after immunohistochemical study.

Melanotic choroid plexus carcinoma of the posterior fossa.

Background: The pigmented or melanotic variant of choroid plexus carcinoma is very rarely encountered.

Case Report: We report herein a case of melanotic or pigmented choroid plexus carcinoma in the posterior fossa of an 11-year-old female.

Conclusions: A histopathological study supported by immunohistochemistry helped the authors to diagnose this rare entity.

Cytodiagnosis of angiosarcoma of breast.

A 24-year-old female presented with swelling in the left breast for one-and-a-half years associated with pain for last 4 months. During this period, she was operated twice and once again there was local recurrence, the biopsy was interpreted as benign vascular lesion. The case was diagnosed by preoperative cytology as angiosarcoma of breast, after which, she underwent modified radical mastectomy.