Intramuscular myxoma

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Intramuscular myxoma
Diagnosis in short

Intramuscular myxoma.
LM DDx myxoid lesions
Site Soft tissue

Intramuscular myxoma is an uncommon benign intramuscular myxoid lesion.

General

  • Rare.[1]
  • Usually do not recur.[2]
  • Present as a mass.[2]

Gross

  • Usually thigh muscles.[2]

Microscopic

Features:[1]

  • Myxoid stroma.
    • Paucicellular.
    • Scant vascularity.
  • Contained within skeletal muscle.

DDx:

Images

See also

References

  1. 1.0 1.1 Charron, P.; Smith, J. (Dec 2004). "Intramuscular myxomas: a clinicopathologic study with emphasis on surgical management.". Am Surg 70 (12): 1073-7. PMID 15663047.
  2. 2.0 2.1 2.2 Silver, WP.; Harrelson, JM.; Scully, SP. (Oct 2002). "Intramuscular myxoma: a clinicopathologic study of 17 patients.". Clin Orthop Relat Res (403): 191-7. PMID 12360026.
  3. Yamashita, H.; Endo, K.; Takeda, C.; Teshima, R.; Osaki, M.; Yoshida, H. (May 2013). "Intramuscular myxoma of the buttock mimicking low-grade fibromyxoid sarcoma: diagnostic usefulness of MUC4 expression.". Skeletal Radiol. doi:10.1007/s00256-013-1641-4. PMID 23685711.