An Extensive Unilateral Nasal Mass: Septal Schwannoma-Case Report.

Schwannomas are benign peripheral nerve sheath tumours that arise from the Schwann cells of the myelinated nerve and may occur throughout the body. Paranasal schwannomas are uncommon lesions, representing less than 4% of all head and neck schwannomas and nasal septal schwannomas are very rare. Here we report a rare case of sinonasal schwannoma in a 46-year-old male who presented with a history of progressive nasal blockage of 3 years duration.

Solid pseudopapillary neoplasm of the ovary with metastases to the omentum and regional lymph nodes.

Extrapancreatic solid pseudopapillary neoplasms (SPNs) are rare tumors, which bear morphological, immunohistochemical, and molecular features similar to those of pancreatic counterparts. SPN occurs primarily in adolescent girls and young women. It is considered to be a malignant neoplasm with low-grade biology.

Angiomyomatous hamartoma of lymph nodes: Clinicopathological study of 6 cases with review of literature.

Angiomyomatous hamartoma (AMH) is a rare disease with predisposition for inguinal and femoral lymph nodes. Histologically, it is characterized by replacement of lymph nodal parenchyma with irregularly distributed thick walled blood vessels, haphazardly arranged smooth muscle cells, variable amount of fat and fibrous tissue in a sclerotic lymphatic stroma. Few cases have also been reported in popliteal and sub - mandibular location.

Intraosseous primary malignant peripheral nerve sheath tumor of the calcaneus: an unusual case and review of literature.

Malignant peripheral nerve sheath tumors (MPNSTs) are uncommon sarcomas that originate from a peripheral nerve or neurofibroma either spontaneously or in association with neurofibromatosis type 1. MPNSTs account for approximately 5% of all soft tissue malignancies. The tumor is commonly seen in the extremities and trunk.