Rare Presentation of Primary Pleural Ewing Sarcoma With a Mass Extending Into the Right Ventricle: A Case Report

Primary pleural Ewing sarcoma is a rare type of Ewing sarcoma with only a few case reports identified in the literature. The condition is challenging to diagnose with deceiving symptoms and wide differential diagnosis. Diagnosis is confirmed with a combination of radiological and pathological assessment. Treatment is similar to other types of Ewing sarcoma with chemotherapy and surgery being the mainstay of treatment. We identify an unusual presentation of pleural Ewing sarcoma in a 31-year-old male with a mass extending into the right ventricular outlet causing rapid deterioration of the patient.

Intestinal Intussusception Complicating an Undiagnosed Burkitt Lymphoma in a Pediatric Arab Patient

Burkitt's lymphoma (BL) is considered an aggressive form of a non-Hodgkin B-cell lymphoma, representing less than 5% of all pediatric malignancies and 30% of pediatric lymphomas. However, intestinal BL may present as a lead point, causing intussusception. Surgery continues to be the gold standard for the treatment and identification of localized tumors to ensure complete removal with proper margin. In this report, we describe a hidden BL presenting as intestinal intussusception in an eight-year-old Arab boy. A computed tomography (CT) scan of the abdomen revealed an ileoileal intussusception with multiple enlarged lymph nodes. The report discusses the role of histopathology, supported by immunohistochemistry studies, in establishing the diagnosis. It also covers the significance of proper laparoscopic surgery and chemotherapy in the management of this child.

Calciphylaxis: A Rare Complication With a Fatal Outcome in End-Stage Renal Disease

Calciphylaxis, or calcific uremic arteriolopathy, is a rare and deadly disease that affects patients with end-stage renal disease (ESRD). It typically manifests in the abdomen and lower extremities. We present a case of a 59-year-old female patient on dialysis due to ESRD who complained of a three-week history of hemorrhagic and painful bilateral lower limb lesions. The predominant clinical suspicion was warfarin-induced skin necrosis (WISN); however, the persistence of unresolved skin lesions post-warfarin cessation generated the impression of calciphylaxis. A skin biopsy confirmed the classical histological findings associated with calciphylaxis. This paper highlights the possible importance of warfarin being an inciting event, as well as the early differentiation between the presentations of WISN and calciphylaxis.