"can show thick intramuscular septae and interdigitations"
"Usually shows either a fat-containing mass within a muscle, which is isointense to subcutaneous fat in all sequences sometimes with septae. Septae should not enhance avidly however or show nodules 2. Interlocked or intermingled muscular tissue and fibres can be observed in the infiltrative type 1. If a capsule is present and found outside the intramuscular lipoma, there should not be muscular fibres in the main mass 1."
"Usually shows either a fat-containing mass within a muscle, which is isointense to subcutaneous fat in all sequences sometimes with septae. Septae should not enhance avidly however or show nodules 2. Interlocked or intermingled muscular tissue and fibres can be observed in the infiltrative type 1. If a capsule is present and found outside the intramuscular lipoma, there should not be muscular fibres in the main mass 1."
Expected headings
"Subtypes"
"Mature adipocytes irregularly infiltrate and replace muscle fibres and bundles in the infiltrative type 1. There is no fatty infiltration of adjacent muscle typically observed in the well-defined or well-circumscribed type."
"usually, oval or fusiform shape but can vary"