title: Intranodal palisaded myofibroblastoma: a case report from an unusual site.
abstract: Intranodal palisaded myofibroblastoma is a rare lymph node benign tumor, of unknown pathogenesis. Although benign, this lesion is frequently confused with metastatic lesions, especially in atypical sites. We report a 39-year-old man with a history of testicular malignant mixed germ cell tumor, presented with abdominal painless mass. The computed tomography of the abdomen confirmed the presence of 180 × 140 mm2 mass in the retroperitoneum with lympadenopathy on the right measuring 20 x 15 mm. The patient underwent exploratory laparotomy, and a surgical exerese of the retroperitoneeum lymph node was made. Histological and immunohistochemical examination confirmed the diagnosis of intranodal palissaded myofibroblastoma. This entity has been previously described, only once, in retroperitoneal region. Despite to the rarity of this neoplasm, we discuss clinicopathologic features and differential diagnosis.
authors: Department of Surgery 2, Mohammed V Military Hospital, Rabat, Morocco.
authors: Laraqui
authors: L
authors: Hicham
authors: Department of Pathology, National Institute of Oncology, Rabat, Morocco.
authors: Mouna
authors: M
authors: Khmou
authors: Department of Surgery 2, Mohammed V Military Hospital, Rabat, Morocco.
authors: Mohammed
authors: M
authors: Najih
authors: Department of Pathology, Ibn Sina University Hospital, Rabat, Morocco.
authors: Fouad
authors: F
authors: Zouaidia
authors: Department of Surgery 1, Mohammed V Military Hospital, Rabat, Morocco.
authors: Khalid
authors: K
authors: Sair
authors: Department of Pathology, National Institute of Oncology, Rabat, Morocco.
authors: Basma
authors: B
authors: El Khannoussi
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D007813:Laparotomy; D008198:Lymph Nodes / Q000473:pathology*; D008297:Male; D009373:Neoplasms, Germ Cell and Embryonal / Q000473:pathology*; D009379:Neoplasms, Muscle Tissue / Q000175:diagnosis* / Q000473:pathology; D013736:Testicular Neoplasms / Q000473:pathology*; D014057:Tomography, X-Ray Computed
keywords: Intranodal palisaded myofibroblastoma; lymph node; retroperitoneum