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Proximal epithelioid sarcoma (PES) originating from the pleura is a clinical entity rarely reported in the literature. We report the case of a young patient with immediately metastatic proximal epithelioid sarcoma (PES) treated at the Department of Medical Oncology, Fes. Treatment consisted of chemotherapy based on doxorubicin and ifosfamide. After the first cycle of chemotherapy, the disease led to a fatal outcome. Our case study highlights the potentially aggressive behaviour of PES which represents a clinical trap and can be life-threatening., Competing Interests: Les auteurs ne déclarent aucun conflit d'intérêts.

Primary hepatoid carcinoma of the ovary (HCO) is a very rare type of high-grade invasive malignant ovarian tumor with hepatic differentiation and production of α-fetoprotein (AFP). We describe a 78-year-old Moroccan woman who presented to our hospital with abdominal distension and purplish nodules infiltrating the para umbilical skin with weight loss and impairment of her performance status. Excisional biopsy of the para umbilical nodule revealed a cutaneous localization of moderately differentiated adenocarcinoma and pelvic ultrasonography noted the presence of a tumoral right adnexal mass. The patient underwent an exploratory laparoscopy which found peritoneal carcinomatosis with pelvic adhesions allowing only a peritoneal biopsy. Diagnosis of primary hepatoid carcinoma of the ovary was established on the basis of classic histopathologic findings, immunohistochemical staining and marked elevation in serum of α-fetoprotein more than the carbohydrate antigen 125. The patient received 3 cycles of chemotherapy based on Carboplatin and Paclitaxel with disease progression. No second line chemotherapy was given because of the drop of patient's performance status to 3. The patient died one month later.

Pregnancy complicated by Non Hodgkin lymphoma (NHL) is rare, about 100 cases have been reported. We will describe the case of a multifocal bone lymphoma revealed by a left hyperalgetic and deficient cruralgia in a female in the second trimester of pregnancy.

The aneurysmal bone cyst is a pseudotumoral lesion that can take several aspects. This is a rare lesion representing 1% of bone tumors. It appears usually during the first 30 years of life. The pathogenesis is that of a process of "dysplasia/hyperplasia", favored by a circulatory deficiency and hemorrhage within the lesion and the phenomena of osteoclasis. The objective of this work is to illustrate with analysis, the specific forms and atypical aneurysmal bone cyst which often pose a diagnostic challenge requiring radiological investigation with histological confirmation. We report eight pediatric cases of aneurysmal cysts collected over a period of 3 years, 3 boys and 5 girls. All patients had standard radiographs. MRI was performed in three patients. The diagnosis was confirmed histologically. The atypia has been in the seat: fibula (1 case), metaphyseal (2 cases), diaphyseal (4 cases) and metatarsal (1 case). Aneurysmal bone cyst is a rare benign tumor with predilection to the metaphysis of long bones. Atypical forms even fewer are dominated by the atypical seat.

Calcification of the alar ligament is rare. It usually develops as a result of traumatic injury and is especially prominent in the elderly. CT scanning is the gold standard of the diagnosis. We report a case of a calcification of the transverse and alar ligament in a patient with rheumatoid arthritis.

Intussusceptions are rare but well-known causes of the small bowel obstruction in adults and an underlying cause is present in the majority of cases. Lymphoma's involvement of the ileum is one of the rare causes of intussusception. CT is a sensitive examination that diagnoses intussusceptions and provides an excellent pre-operative evaluation including possible extension and dissemination especially in intestinal lymphomas. The treatment is almost always surgical and the pathological study is needed for diagnostic confirmation. Authors present an unusual case of intestinal intussusception due to lymphoma of the terminal part of the ileum in a 49-year-old man. Computed tomography confirmed the diagnosis of intussusception and non-Hodgkin's lymphoma of B-cell was diagnosed by histological examination after surgical treatment. Primary intestinal lymphomas differ from gastric lymphomas in clinical features, treatment, and prognosis. They are not well characterized and the standardized concepts for their clinical diagnosis and management are absent. The aim of this rare observation is to shed light on NHL of the small bowel, its clinical and radiological diagnosis and its treatment especially in forms revealed by intussusceptions in adults.