Amine Chhaidar

Inflammatory pseudotumor of the spleen is a benign tumorous lesion of unknown etiology and pathogenesis that has been described in only a few cases in the literature. Recognition of this rare entity is important, as the clinical manifestations and imaging features could be indistinguishable from a lymphoproliferative disorder or another malignancy of the spleen. We report a new case and

Hemangiopericytoma is a rare vascular tumor representing about 1% of all vascular tumors and approximatively 5% of all soft tissues sarcomas that arises from the pericytes of Zimmerman surrounding capillaries and postcapillaries vessels. Retroperitoneal hemangiopericytomas are rare among the localisations as it usually occurs in lower and upper extremities. We present a case of 31-year-old man with a well-defined retro peritoneal mass measuring about 105 × 73 × 83 mm at right lower quadrant of the abdomen anterior to right psoas muscle. Intraoperatively, an large mass measuring 10 × 8 cm was found arising from the retro peritoneum. A monobloc excision was performed. The postoperative course was uneventful. Histopathological examination with immune histochemistry revealed that tumoral cells were positive for desmin, CD34, smooth muscular antigen. Final diagnosis of hemangiopericytoma was made. On the last follow up at one year, he was symptom free. Hemangiopericytoma is a rare tumor. It takes origin from pericytes presenting as intervals along the walls of capillaries and post-capillary venules. Retroperitoneal hemangiopericytoma is a rare location. It is often discovered at late course, and can be revealed by various symptoms with the compression of the adjacent organs by the tumor Surgical resection should be considered in symptomatic cases or in case of diagnostic dilemma. Retroperitoneal hemangiopericytoma can be benign but it should be treated the same way as aggressive tumors. It requires a careful and long term follow up.

Intrauterine devices (IUDs) are commonly used as a contraceptive method. However, they may cause rare but potentially serious complications such as migration through the uterine wall and gastrointestinal perforation. We report a case of a 26-year woman, carrying an IUD for 2 years, who presented to the emergency with pelvic pain with breakthrough bleeding. Abdominal imaging revealed the presence of two devices the first of which was located in the uterine cavity and the other in the wall of the sigmoid colon associated with a 5-centimeter pelvic collection. Intraoperatively, the IUD was found to be embedded in the wall of the sigmoid colon which was removed by wedge resection of the involved segment followed by a closure of the puncture with drainage. The Intrauterine Device (IUD) is an effective method of contraception, relatively well tolerated, reversible, inexpensive and widely used. However, it is not without risk. Indeed, serious complications can occur such as uterine perfora...

Ossifying fibromyxoid tumor (OFMT) is a rare lesion that generally occurs in the soft tissues of proximal limbs, head or neck and presents as a slowly growing mass. Abdominal or trunk locations are extremely rare. We report a case of 50-year-old man who presented with a painless, slow growing epigastric mass for 5 years. Radiologic assessment revealed a well circumscribed median subcutaneous parietal mass lesion present in front of the xiphoid process suspicious of a calcified hydatid cyst. Diagnosis of OFMT was made on histopathological examination of the resected specimen. OFMT most often presents as a single swelling arising from the subcutaneous soft tissues or skeletal muscles of the extremities. Multifocal presentation is exceedingly rare. Radiologically, a peripheral shell of bone is seen in more than 50% cases. On MRI, myxofibrous stroma appears isointense to muscle on T1 and of intermediate to high signal intensity on T2. Surgical excision is the mainstay of treatment. Hist...