Endometriosis of the vastus lateralis muscle

Pat A. Basu, Basu PA, Pat Auveek Basu, Anil K. Kesani, Kesani AK, Gregory S Stacy, Gregory Scott Stacy, Stacy GS, Peabody TD, Terrance D. Peabody
Skeletal radiology · 2005 · vol. 35(8) , pp. 595–598 · doi:10.1007/s00256-005-0052-6 · PMID:16308716 · W1973665002
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⚙ AI-generated summary by claude@2026-06+body, 2026-06-13 ⓘ

This case report describes a woman with a painful thigh mass, confirmed via biopsy to be intramuscular endometriosis, presenting with symptoms that correlated with her menstrual cycle.

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⚙ AI-generated deep summary by claude@2026-06, 2026-06-09 · read from full text ⓘ

This paper reports an unusual case of a woman with a painful anterolateral thigh mass in the vastus lateralis muscle whose symptoms waxed and waned with menses. Using MRI, the lesion was initially interpreted as possible sequelae of prior trauma or a small fibrous tumor based on signal characteristics and a rim pattern with surrounding edema. Excisional biopsy, however, demonstrated endometrial tissue, leading to a diagnosis of intramuscular endometriosis. This paper is centrally about endometriosis — it documents endometriosis presenting as a mass in the vastus lateralis muscle.

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Abstract

We report an unusual case of a woman who sought medical attention for a painful mass within her anterolateral left thigh. The patient's symptoms waxed and waned with her menses. Magnetic resonance imaging revealed a 3 cm mass isointense to muscle and surrounded by a rim of decreased signal intensity on T1-weighted images. T2-weighted images with fat saturation revealed a low signal intensity mass with a surrounding rind of high signal intensity edema. Based on its magnetic resonance imaging characteristics, the lesion was initially thought to represent the sequela of prior trauma or perhaps a small fibrous tumor. An excisional biopsy of the mass, however, revealed endometrial tissue, and a pathologic diagnosis of intramuscular endometriosis was rendered.
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Abstract

We report an unusual case of a woman who sought medical attention for a painful mass within her anterolateral left thigh. The patient’s symptoms waxed and waned with her menses. Magnetic resonance imaging revealed a 3 cm mass isointense to muscle and surrounded by a rim of decreased signal intensity on T1–weighted images. T2–weighted images with fat saturation revealed a low signal intensity mass with a surrounding rind of high signal intensity edema. Based on its magnetic resonance imaging characteristics, the lesion was initially thought to represent the sequela of prior trauma or perhaps a small fibrous tumor. An excisional biopsy of the mass, however, revealed endometrial tissue, and a pathologic diagnosis of intramuscular endometriosis was rendered.

References

Olive DL, Schwartz LB. Endometriosis. N Engl J Med 1993;328:1759 Sangi-Haghpeykar H, Poindexter AN. Epidemiology of endometriosis among parous women. Obstet Gynecol 1995;85:983 Missmer SA, Hankinson SE, Spiegelman D, et al. Incidence of laparoscopically confirmed endometriosis by demographic, anthropometric, and lifestyle factors. Am J Epidemiol 2004;160:784 Pediatric and Adolescent Gynecology, 5th ed, Emans SJ, Laufer MR, Goldstein DP (Eds), Lippincott Williams Wilkins, Philadelphia 2005 Houston DE. Evidence for the risk of pelvic endometriosis by age, race, and socioeconomic status. Epidemiol Rev 1984;6:167 Jenkins S, Olive DL, Haney AF. Endometriosis: pathogenetic implications of the anatomic distribution. Obstet Gynecol 1986; 67:335. Gastrointestinal and urinary tract involvement has been described Johnson MM. Catamenial pneumothorax and other thoracic manifestations of endometriosis. Clin Chest Med 2004;25:311 Joseph J, Sahn SA. Thoracic endometriosis syndrome: New observations from an analysis of 110 cases. Am J Med 1996;100:164 Redwine DB. Diaphragmatic endometriosis: diagnosis, surgical management, and long-term results of treatment. Fertil Steril 2002;77:288 Dwivedi AJ, Agrawal SN, Silva YJ. Abdominal wall endometriomas. Dig Dis Sci 2002;47 (2):456–461 Feb Ideyi S, Schein M, Niazi M, Gerst P. Spontaneous endometriosis of the abdominal wall. Digestive Surgery 2003;20:246–248 Botha AJ, Halliday AE, Flanagan JP. Endometrisis in gluteus muscle with surgical implantation. Acta Orthop Scand. 1991;62:497–499 Oct Aron SE. Endometriosis in the region of the deltoid muscle. Arkh Patol. 1957;19:67–68 Patel VC, Samuels H, Abeles E. Endometriosis of the knee. Clin Orthop Relat Res. 1982;171:140–144 das Gupta S, Pal SK, Saha PK, Dawn CS. Endometriosis in the thumb. J Indian Med Assoc. 1985;83:122,123 Apr Yekeler E, Kumbasa B, Tunaci A, Barman A, Bengisu E, Yavuz E, Tunaci M. Cyclic sciatica caused by infiltrative endometriosis: MRI findings. Skeletal Radiology. 2004;33;165–168 Redwine DB, Sharpe DR. Endometriosis of the obturator nerve. J Reprod Med. 1990;35:434,435 Apr Recalde AL, Majumdar B. Endometriosis involving the femoral vein. South Med J. 1977;70:69–74 Mahmood TA, Templeton A. Prevalence and genesis of endometriosis. Hum Reprod 1991;6:544 Schenken, RS. Pathogenesis. In: Endometriosis: Contemporary Concepts in Clinical Management, Schenken, RS (Ed), JB Lippincott Company, Philadelphia 1989. p.1 Laufer MR. Premenarcheal endometriosis without an associated obstructive anomaly: Presentation, diagnosis, and treatment. Fertil Steril 2000;74:S15 Olive DL, Henderson DY. Endometriosis and Mullerian anomalies. Obstet Gynecol 1987;69:412 Steele RW, Dmowski WP, Marmer DJ. Immunologic aspects of human endometriosis. Am J Reprod Immunol 1984;6:33 Harada T, Iwabe T, Terakawa N. Role of cytokines in endometriosis. Fertil Steril 2001;76:1 Lebovic DI, Mueller MD, Taylor RN. Immunobiology of endometriosis. Fertil Steril 2001;75:1 Togashi K, Nishimura K, Kimura I, et al: Endometrial cysts: diagnosis with MR imaging. Radiology 1991;180(1):73–78 Jul Woodward P, Sohaey R, Mezzetti T: Endometriosis: radiologic-pathologic correlation. Radiographics 2001;21:193–216 Gougoutas CA, Siegelman ES, Hunt J, Outwater EK: Pelvic endometriosis: various manifestations and MR imaging findings. AJR Am J Roentgenol 2000;175(2):353–358 Author information Authors and Affiliations Corresponding author Rights and permissions About this article Cite this article Basu, P.A., Kesani, A.K., Stacy, G.S. et al. Endometriosis of the vastus lateralis muscle. Skeletal Radiol 35, 595–598 (2006). https://doi.org/10.1007/s00256-005-0052-6 Received: Revised: Accepted: Published: Issue date: DOI: https://doi.org/10.1007/s00256-005-0052-6

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Condition tags

endometriosis

MeSH descriptors

Endometriosis Magnetic Resonance Imaging Muscular Diseases Adult Biopsy Diagnosis, Differential Endometriosis Female Humans Muscular Diseases Radiography, Interventional Thigh

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