Case report on ureteral amyloidosis that was incidentally diagnosed in a patient with malignant lymphoma.

Herein, we report a rare case of localized ureteral amyloidosis in a patient with malignant lymphoma. A 73-year-old female patient visited our institution for a comprehensive examination and treatment of malignant lymphoma. Contrast-enhanced computed tomography scan and magnetic resonance imaging revealed left hydronephrosis and a left lower ureteral mass.

The Value of a Pet Scan in Selecting the Best Lymph Node to Biopsy, and Confirming the Diagnosis of Idiopathic Multicentric Castleman Disease with HLH And EBV Viremia in a Previously Healthy Adult.

Introduction: Castleman disease (CD) is a rare lymphoproliferative disorder having a variegated clinical presentation. Diagnosis of the idiopathic HIV- and HHV8-negative multicentric CD (iMCD) subtype poses a challenge given its non-specific clinical manifestations. iMCD presents as diffuse lymphadenopathy with inflammatory manifestations, primarily driven by interleukin-6 (IL-6).

Malignant epithelioid tumors with EWSR1::CREB fusion involving the kidney: a report of two cases.

Soft tissue tumors with EWSR1/FUS fusion to genes encoding the cyclic adenosine monophosphate response element-binding (CREB) transcription factor family (ATF1, CREB1, and CREM) are rare and heterogeneous aggressive tumors, often found in the peritoneal cavity. Here, we report two cases of malignant epithelioid tumors with EWSR1::CREB fusion involving the kidney in females in their 30 s. Both tumors appeared as solitary masses, measuring 5.

Interventional solutions for post-surgical problems: a lymphatic leaks review.

The lymphatic circulation plays a crucial role in maintaining fluid balance and supporting immune responses by returning serum proteins and lipids to the systemic circulation. Lymphatic leaks, though rare, pose significant challenges post-radical neck surgery, oesophagectomy, and thoracic or retroperitoneal oncological resections, leading to heightened morbidity and mortality. Managing lymphatic leaks necessitates consideration of aetiology, severity, and volume of leakage.

An Unusual Case of Extramedullary Hematopoiesis in the Right Kidney.

Extramedullary hematopoiesis (EMH) is the formation of blood cells outside the bone marrow, typically occurring in response to chronic anemia or bone marrow dysfunction. While EMH is most commonly observed in the liver, spleen, and lymph nodes, its occurrence in the kidney is exceedingly rare. In this case report, we are presenting a case of a 49-year-old male diagnosed with polycythemia vera who had an incidental right renal mass, which was histo-pathologically proven as extramedullary hematopoiesis in the right kidney mimicking lymphoma.

An Incidental Finding of a Massive Loculated Pericardial Effusion in a Patient Presenting With Inferior ST-Elevation Myocardial Infarction.

Pericardial effusion, commonly associated with malignancies such as lung, breast, and esophageal cancers through local extension, or leukemia, lymphoma, and melanoma via metastatic dissemination, is rarely observed in renal cell carcinoma (RCC). This report presents a rare case of a large loculated pericardial effusion in a 68-year-old male, potentially linked to RCC, who concurrently presented with an inferior wall ST-elevation myocardial infarction (STEMI). The patient, with a history of hypertension, hyperlipidemia, end-stage renal disease, coronary artery disease, and former smoking, exhibited symptoms including chest pain, diaphoresis, and shortness of breath, but no fever, chills, or night sweats.

A Rare Case of Aggressive Non-Hodgkin's Lymphoma of the Muscle in a Young Male Presenting as Necrotizing Myofasciitis.

Non-Hodgkin's lymphoma (NHL) involving skeletal muscle is generally found to be a secondary metastasis and extremely rarely as a primary site of malignancy. Furthermore, in HIV patients, an increased incidence of lymphomas may be identified within the first six months of highly active antiretroviral therapy (HAART) initiation unmasked by immune reconstitution inflammatory syndrome (IRIS). We illustrate an extremely rare instance of NHL of the skeletal muscle in a young immunocompromised male with HIV/AIDS presenting as necrotizing myofasciitis complicated by compartment syndrome and hemodialysis-refractory type B lactic acidosis.

A disease warranting attention from neurosurgeons: primary central nervous system post-transplant lymphoproliferative disorder.

Background: Primary central nervous system post-transplant lymphoproliferative disorder (PCNS-PTLD) is a rare condition, posing diagnostic and treatment challenges, with histological biopsy essential for diagnosis. Standardized treatment protocols are lacking. This disease requires urgent attention due to the increasing number of organ transplant surgeries and the use of immunosuppressive agents.

Acute Airway Obstruction: An Unusual Presentation of Posttransplant Lymphoproliferative Disorder in a Renal Transplant Recipient.

Posttransplant lymphoproliferative disorder is a life-threatening complication after solid-organ transplants. In adults, recipients of heart transplants have the highest risk, whereas renal transplant recipients have the lowest risk among all solid-organ transplants. The most common site for posttransplant lymphoproliferative disorders are gastrointestinal tract followed by the graft itself.