A case of adrenal myelolipoma complicated with Prader-Willi syndrome.

Introduction: Prader-Willi syndrome is a congenital disorder that occurs in one in 10 000-30 000 children and is characterized by obesity, short stature, and intellectual disability.

Case Presentation: A 24-year-old male patient with Prader-Willi syndrome presented with an enlarged adrenal tumor. Computed tomography detected a well-defined mass.

[Immune thrombocytopenia associated with Kimura's disease].

In this study, we report a rare case of immune thrombocytopenic purpura (ITP) associated with the worsening of Kimura's disease. A 47-year-old Japanese man with a pruritic rash and swollen inguinal lymph nodes was diagnosed with Kimura's disease on performing a right inguinal lymph node biopsy. Thrombocytopenia ensued after the diagnosis of Kimura's disease, and fluctuations in the platelet count were observed along with the pathology of Kimura's disease.

Myasthenic crisis appearing after resection of intracardiac ectopic thymoma with superior vena cava syndrome.

Background: We describe herein an extremely rare case of intracardiac ectopic thymoma-only two pure cases have been reported to date-associated with myasthenia gravis, an infrequent complication of ectopic thymoma.

Case Presentation: A 71-year-old woman with superior vena cava syndrome was found to have a large mass mainly located in the right atrium. Tumor resection under cardiopulmonary bypass was performed.

Pediatric plexiform fibromyxoma: A PRISMA-compliant systematic literature review.

Background: Plexiform fibromyxoma (PF) is a rare gastric mesenchymal tumor, with approximately 80 cases reported to date. Gastrointestinal stromal tumor, the most common primary mesenchymal tumor of the stomach, shows different biological and clinical characteristics between adult and pediatric patients.

Objectives: This systematic literature review was conducted to elucidate the pathological and clinical features of pediatric PF compared to adult PF.