Endometriosis of the soleus and gastrocnemius muscles.
OBJECTIVE
To document a rare case of endometriosis in the soleus and gastrocnemius muscles.


METHODS
Case report.


METHODS
Tertiary care center.


METHODS
A 30-year-old fertile woman presented with moderate dysmenorrhea associated with calf pain and bulging that had been gradually worsening over the last years, particularly during menses. A mass in the soleus and gastrocnemius muscles was identified in ultrasonography and magnetic resonance imaging.


METHODS
Endometriosis was diagnosed by incisional biopsy on the basis of histopathology, and wide excisional biopsy was performed.


METHODS
Unusual clinical presentation of endometriosis.


RESULTS
The patient was disease free for 2 months. Recurrence of the lesion was then diagnosed, and a new surgical approach was planned.


CONCLUSIONS
Endometriosis in muscles is a rare event, and existing theories are not totally sufficient in explaining it.
Poli-Neto
Omero Benedicto
OB
Department of Surgery and Anatomy, Faculty of Medicine, University of São Paulo, Ribeirão Preto, Brazil.
Rosa-E-Silva
Júlio César
JC
Barbosa
Hermes Freitas
HF
Candido-Dos-Reis
Francisco José
FJ
Nogueira
Antonio Alberto
AA
D000328:Adult; D004412:Dysmenorrhea / Q000175:diagnosis; D004715:Endometriosis / Q000175:diagnosis*; D005260:Female; D006801:Humans; D018482:Muscle, Skeletal / Q000473:pathology*; D009135:Muscular Diseases / Q000175:diagnosis* / Q000473:pathology; D010146:Pain / Q000175:diagnosis