Intranodal Palisaded Myofibroblastoma

Abstract

Intranodal palisaded myofibroblastoma is a rare benign primary mesenchymal neoplasm originating from differentiated smooth muscle cells and myofibroblasts. The precise etiology and pathogenesis has not been adequately explained as yet. Very few series and cases have been reported in the literature. Though inguinal region is the commonest site of this rare tumor, but the tumor at other diverse sites have been reported. Because of its rarity, it can be often misdiagnosed and confused with other disorders and more commonly with metastasis. We report an extensive review of literature about intranodal palisaded myofibroblastoma--its characteristics, presentations, features, and management.

Axillary intranodal palisaded myofibroblastoma: report of a case associated with chronic mastitis

“…IPM pathological differential diagnosis includes a wide spectrum of lesions 5–7 8 11. The most important are represented by schwannoma and Kaposi sarcoma 1 6. Moreover, haemangioendothelioma, intranodal leiomioma, leiomiosarcoma, dendritic reticulum cell tumour, inflammatory myofibroblastic tumour, primary and metastatic malignant spindle-cell tumours should also be considered in the differential diagnosis 1 2 4–10.…”

Intranodal palisaded myofibroblastoma of para‐esophageal lymph node: Case report with cytologic and histologic findings

“…Intranodal palisaded myofibroblastoma (IPM) is a rare distinctive benign mesenchymal tumor of lymph node originating from smooth muscle cells and myofibroblasts . IPM most commonly occurs between the ages of 45 to 55 years with 2:1 male predominance which usually presents as a slow‐growing, painless mass in inguinal lymph nodes.…”

Mammary-Type Myofibroblastoma of the Buttock: A Case Report and Review of the Literature

“…It has been established that mammary-type myofibroblastomas commonly originate from the embryonic milk-line, extending from the mid-axilla to the medial groin (2). Although mammary-type myofibroblastomas are commonly reported in the iliac area, they are rarely reported in the axillae, mid-back, retroperitoneum, or buttocks (2,3). In fact, to the best of our knowledge, only two previous cases of mammary-type myofibroblastoma involving the buttocks have been reported.…”