BACKGROUND Ruptured renal neoplasms can be a catastrophic clinical presentation. Angiomyolipoma is the commonest renal tumor which presents in this fashion. Renal sarcomas are rare renal neoplasms. Renal leiomyosarcomas are the most common histological subtype of renal sarcomas, accounting for approximately 50-60% of the reported cases. These tumors are usually peripherally located and appear t...

the case was an 18-year-old female with progressive crampy abdominal pain, nausea and vomiting, initiated from 4 months ago, who had 4-5 kg weight loss in this period. in physical examination, an ill-defined mass with mild tenderness in periumblical region palpation was detected. in upper gi endoscopy, bulging folds with a necrotic mass in d2- d3 were detected. in small bowel series study, cut ...

Liposarcomas are the most common mesenchymal tumors of the retroperitoneal space. Retroperitoneal liposarcomas are usually grown slowly and frequently reach a very large size before clinical recognition. Precise diagnosis and distinct multiplanar evaluation is essential for complete resection of these tumors. Here in we reported two cases with giant retroperitoneal liposarcomas which were evalu...

BACKGROUND Hemangiopericytoma occurs with increasing frequency in 5th decade of life and has prediction for retroperitoneum and extremities. A case of a local recurrence and metastases of hemangiopericytoma is described. CASE PRESENTATION Recurrence of hemangiopericytoma in the greater omentum and the jejunal mesentery as well as metastases in the retroperitoneal space were diagnosed in a 61-...

A 61-year-old man developed progressive gait imbalance and papular skin lesions over 9 months. He reported fatigue, but no other constitutional symptoms. Neurologic examination revealed ataxia. Brain MRI (figure 1, A–D) demonstrated punctate enhancing foci supratentorially patchy pontine T2 hyperintensity; pituitary or orbital abnormality was reported. Skin biopsy 2) a histiocytic neoplasm that...

introduction adrenal myelolipoma is a rare benign neoplasm, which contains mature adipose tissue and variable amounts of haematopoietic elements. most lesions are small and asymptomatic, discovered incidentally during autopsy or imaging studies performed for other reasons. case presentation here we reported a series of two cases of giant myelolipomas of the adrenal gland; first one the largest ...

Germ cell tumors (GCTs) are a group of tumors showing variations in clinical presentation and histopatho-logical and biological characteristics [1, 2]. The GCTs are neoplasms that develop from primordial germ cells of the human embryo, which are normally destined to produce sperm or ova. Primordial germ cells appear to originate in the yolk sac endoderm and migrate around the hind-gut to the ge...

hydatid disease is a parasitic tapeworm infestation that usually involves liver and lungs. primary retroperitoneal hydatid without liver and lung involvement is very rare. surgery is the principle method of treatment for large retroperitoneal hydatid, whenever feasible. we report a case of primary retroperitoneal hydatid cyst in 29-year-old male patient.

BACKGROUND Retroperitoneal sarcoma is rare. Using initial specimens on biopsy, a definitive diagnosis of histological subtypes is ideal but not always achievable. METHODS A retrospective institutional review was performed for all cases of adult retroperitoneal sarcoma from 1996 to 2015. A review of the literature was also performed related to the distribution of retroperitoneal sarcoma subtyp...