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Proliferative Myositis

Proliferative Myositis CLINICAL NOTE A Rare Pseudomalignant Tumor of the Head and Neck Claudius Fauser, MD; Jo¨rg Na¨hrig, MD; Hans Peter Niedermeyer, MD; Wolfgang Arnold, MD roliferative myositis (PM) is a rare, benign, neoplastic condition of the skeletal muscle. To date, approximately 100 cases have been published in which 25 reported lesions were located in the head and neck region. In spite of its rarity, PM is an important differential P diagnosis for the ear, nose, and throat surgeon because it clinically resembles a malignant tumor. Typical findings that should raise suspicion include a rapidly, invasive growing tumor within skeletal muscle and absence of enlarged lymph nodes, in conjunction with an unremarkable labo- ratory workup. Ultrasonography of the tumor can give an important hint toward the correct diag- nosis. However, a biopsy is mandatory, and the diagnosis is made by the pathologist. It is justifiable to wait and monitor the lesion, since PM is a self-limiting proliferation and spontaneous recoveries have been described. Malignant transformation or metastases have not been reported. peared to be 25 round, echo-rich strands REPORT OF A CASE of approximately 3 mm in diameter that ran parallel to the axis of the sternoclei- A 64-year-old white woman http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png JAMA Otolaryngology - Head & Neck Surgery American Medical Association

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Publisher
American Medical Association
Copyright
Copyright 2008 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.
ISSN
2168-6181
eISSN
2168-619X
DOI
10.1001/archotol.134.4.437
pmid
18427013
Publisher site
See Article on Publisher Site

Abstract

CLINICAL NOTE A Rare Pseudomalignant Tumor of the Head and Neck Claudius Fauser, MD; Jo¨rg Na¨hrig, MD; Hans Peter Niedermeyer, MD; Wolfgang Arnold, MD roliferative myositis (PM) is a rare, benign, neoplastic condition of the skeletal muscle. To date, approximately 100 cases have been published in which 25 reported lesions were located in the head and neck region. In spite of its rarity, PM is an important differential P diagnosis for the ear, nose, and throat surgeon because it clinically resembles a malignant tumor. Typical findings that should raise suspicion include a rapidly, invasive growing tumor within skeletal muscle and absence of enlarged lymph nodes, in conjunction with an unremarkable labo- ratory workup. Ultrasonography of the tumor can give an important hint toward the correct diag- nosis. However, a biopsy is mandatory, and the diagnosis is made by the pathologist. It is justifiable to wait and monitor the lesion, since PM is a self-limiting proliferation and spontaneous recoveries have been described. Malignant transformation or metastases have not been reported. peared to be 25 round, echo-rich strands REPORT OF A CASE of approximately 3 mm in diameter that ran parallel to the axis of the sternoclei- A 64-year-old white woman

Journal

JAMA Otolaryngology - Head & Neck SurgeryAmerican Medical Association

Published: Apr 1, 2008

References