Renal Leiomyoma: A Case Report and Review of the Literature.

Leiomyoma is an uncommon tumor of the kidney. The authors report a rare case of renal leiomyoma in a 39-year-old male patient who presented with a right flank mass. Laparoscopic nephrectomy was performed.

Polymorphous low-grade adenocarcinoma of the epiglottis: A case report.

Polymorphous low-grade adenocarcinoma is an uncommon malignant tumor derived from the terminal duct cells of the salivary glands. The present study described a rare case of polymorphous low-grade adenocarcinoma, T2N0M0 stage 2, in a 65-year-old man, who presented with a sore throat and painful dysphagia. Computed tomography revealed an infiltrative heterogenous enhancing mass involving the left aryepiglottic fold.

Clinicopathological features of dermatofibrosarcoma protuberans.

Dermatofibrosarcoma protuberans (DFSP) is a superficial cutaneous tumor of low malignant potential characterized by a high rate of local recurrence. The histopathological appearance shows uniform spindle neoplastic cells arranged in a predominantly storiform pattern, typically with positive staining for cluster of differentiation (CD)34 and vimentin on immunohistochemistry. A minority of cases of DFSP have areas of sarcomatous transformation.

Bilateral pseudoangiomatous stromal hyperplasia in a human immunodeficiency viral-infected patient.

Pseudoangiomatous stromal hyperplasia (PASH) is an uncommon mesenchymal neoplasm of the breast demonstrating stromal myofibroblastic proliferation and having the appearance of anastomosing slit-like pseudovascular spaces lined by spindle-shaped cells. A case of nodular PASH of the bilateral breasts in a 40-year-old woman with clinically presenting with a progressive enlarged breast lump is reported. Mammographic and ultrasonographic features of the right and left breasts showed a large solid lump with well-circumscribed border measuring 4 cm × 1.