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Solitary Cellular Schwannoma (Neurilemmoma) Showing Malignant Changes: Evaluation through Magnetic Resonance Imaging (M.R.I.), Surgical Intervention, and Histopathology
Author(s) -
Sehgal Virendra N.,
Gupta Ram L.,
Bhatia Arti,
Kumar Sunil,
Jain Sanjeev,
Kapoor Vibhu
Publication year - 1999
Publication title -
the journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 65
eISSN - 1346-8138
pISSN - 0385-2407
DOI - 10.1111/j.1346-8138.1999.tb03453.x
Subject(s) - schwannoma , histopathology , magnetic resonance imaging , malignant transformation , medicine , radiology , calcification , pathology
Abstract Schwannoma (neurilemmoma) are common benign tumors arising from the peripheral nerve sheath. Malignant transformation is uncommon. A unique case showing such a transformation is reported highlighting the roles of magnetic resonance imaging, surgical intervention, and histopathology. The case was thoroughly investigated by learning the details of the sequence of events leading to the current status. The evaluation was made through magnetic resonance imaging. In addition, computed tomography and conventional radiography were used to locate any foci of calcification. Subsequently, the tumor's gross and microscopic morphology was defined by surgical intervention and histopathology. Malignant schwannoma of the left leg occupying the entire calf is extremely uncommon. Only ten cases have been reported thus far, including the current one from the Indian subcontinent. Malignant transformation in a schwannoma differs significantly from malignant nerve sheath tumors (erroneously called malignant schwannomas). An endeavour has been made to differentiate malignant transformation in schwannoma from other malignant peripheral nerve sheath tumors. An innovation in this direction is magnetic resonance imaging. This investigative procedure is imperative in such situations, along with surgery and histopathology, which may also help in classifying the condition.