Urachal adenocarcinoma is a rare neoplasm of the bladder. Most of these tumors arise from urachal remnants in the dome of the bladder and extend into the umbilicus. These tumors can recur and most commonly metastasize to lymph nodes, retroperitoneum, lungs, liver and bone. Here we report a case of an urachal adenocarcinoma followed for seven years with lung metastasis for three years.

The involvement of the retroperitoneum by endometriosis occurs only sporadically. In the present report, emphasis will be given to the magnetic resonance imaging findings which raised the diagnostic suspicion of periureteral lesion in a patient undergoing tamoxifen therapy, presenting with left upper quadrant pain and hydronephrosis. Histopathological findings obtained by means of computed tomo...

Liposarcoma is the most common pathology seen in the soft tissue sarcoma of retroperitoneum. These tumors have been traditionally treated with radical surgery sacrificing adjacent organs to achieve clear margins. We have reported our experience of renal sparing surgery for perirenal liposarcoma in two patients with more than 24 month disease free survival.

Ganglioneuromas are rare, benign, slow-growing tumors originating from sympathetic ganglion cells. The most common locations are the posterior mediastinum and retroperitoneum. Pelvic ganglioneuroma is very rare. The case of a 12-year-old girl with presacral ganglioneuroma is reported. The importance of considering a confident preoperative diagnosis by fine-needle aspiration biopsy is stressed.

Use of a bowel segment for ureteral replacement is a reliable and a feasible procedure with satisfactory results. We present a patient with a complete left ureteral necrosis due to infection; with an abscess formation in the retroperitoneum after a radical cystoprostatectomy and Studer pouch operation.

Rhabdomyoblastic differentiation in liposarcoma is a rare entity, with only few cases being reported in the literature. These cases were reported in either dedifferentiated liposarcomas or in recurrent tumours which occurred in the retroperitoneum. The present case was a rare case of a primary parapharyngeal well differentiated liposarcoma with a focal rhabdomyoblastic differentiation.

Objective: Erdheim-Chester disease is a rare form of non-Langerhans cell histiocytosis unknown etiology. It multisystemic that can involve bones, skin, brain, retroperitoneum, cardiovascular system, endocrine and lungs. Diagnosis made by clinical findings, imaging results, histopathological examination. BRAFV600E (B-rapidly accelerated fibrosarcoma gene) mutation found in more than half the cas...

Lateral approach spine surgery provides effective interbody stabilization, and correction and indirect neural decompression with minimal-incision and less invasive surgery compared with conventional open anterior lumbar fusion. It may also avoid the trauma to paraspinal muscles or facet joints found with transforaminal lumbar interbody fusion and posterior lumbar interbody fusion. However, beca...

AIMS To report the relapse pattern of stereotactic body radiotherapy (SBRT) for oligorecurrent nodal prostate cancer (PCa). MATERIALS AND METHODS PCa patients with ≤3 lymph nodes (N1/M1a) at the time of recurrence were treated with SBRT. SBRT was defined as a radiotherapy dose of at least 5 Gy per fraction to a biological effective dose of at least 80 Gy to all metastatic sites. Distant progr...

[This retracts the article DOI: 10.1155/2015/547287.].