Muskulär pseudo­hypertrofi yttrade sig som mjukdels­tumör - Denervering av tensor fasciae latae visade sig vara orsaken

Pseudohypertrophy of musculus tensor fascia lata presenting as a soft tissue tumor: a case report Conditions presenting as palpable soft tissue masses are a common clinical issue. This case report describes a patient with unilateral pseudohypertrophy of m. tensor fasciae latae, which is an uncommon differential diagnosis for a palpable soft tissue mass. The patient presented a palpable soft tissue mass located proximally and anteriorly on the right thigh. The primary concern was a sarcoma. The patient was examined with magnetic resonance imaging and electromyography and it could be concluded that the patient had pseudohypertrophy, i.e. accumulation of excess fat and connective tissue inside m. tensor fasciae lata which was caused by impaired function of the efferent nerve at the spinal level. If the diagnosis of soft tissue masses cannot be revealed with thorough clinical history and examination, magnetic resonance imaging is recommended for further investigation.