Intramuscular lipoma of the subscapularis muscle.
BACKGROUND
Intramuscular lipomas are benign tumors that infiltrate the muscles.


METHODS
We describe the case of a 58-year-old female patient with an axillary lump. The lump was a lipoma inside the subscapularis muscle. It is important to differentiate these lesions from liposarcomas and from other diseases that may present as axillary lumps. The most accurate imaging method for differentiating benign lipomatous tumors from liposarcomas is magnetic resonance imaging, but surgical removal of these intramuscular lesions to confirm the diagnosis is recommended.


CONCLUSIONS
Intramuscular lipomas are a rare cause of benign axillary lumps and should be considered in making differential diagnoses on axillary masses.
Department of Anatomical Pathology and Legal Medicine, School of Medicine, Universidade Federal de Minas Gerais, Belo Horizonte Minas Gerais, Brazil.
Débora
D
Balabram
Serviço de Radiologia e Ultrassonografia de Minas Gerais, Belo HorizonteMinas Gerais, Brazil, MD. Radiologist, Serviço de Radiologia e Ultrassonografia de Minas Gerais (Sermig), Belo Horizonte, Minas Gerais, Brazil.
Carla Cristina de Sousa Resende
CC
Cabral
Laboratory of Anatomical and Diagnostic Pathology, Belo HorizonteMinas Gerais, Brazil, MD. Pathologist, Laboratory of Anatomical and Diagnostic Pathology, Belo Horizonte, Minas Gerais, Brazil.
Omar de Paula Ricardo
Ode P
Filho
Instituto da Previdência dos Servidores do Estado de Minas Gerais, Belo HorizonteMinas Gerais, Brazil, MD. Breast Surgeon, Instituto da Previdência dos Servidores do Estado de Minas Gerais (IPSEMG), Belo Horizonte, Minas Gerais, Brazil.
Cristóvão Pinheiro de
CP
Barros
D001365:Axilla / Q000473:pathology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008067:Lipoma / Q000175:diagnosis*; D008080:Liposarcoma / Q000175:diagnosis; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D019042:Muscle Neoplasms / Q000175:diagnosis*