Olgu Sunumu

A left cervical mass in a one-month-old infant: fibromatosis colli case report

Cilt: 7 Sayı: 3 30 Eylül 2026
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A left cervical mass in a one-month-old infant: fibromatosis colli case report

Öz

Fibromatosis colli (FC) is a rare, benign, and self-limiting fibroblastic proliferative lesion of the ster-nocleidomastoid muscle that typically presents as a neck mass during the first weeks of life and may be associated with torticollis. This case aims to emphasize the clinical and ultrasonographic features of FC and the favorable outcome of early conservative management. A female infant born at 40 weeks and 2 days of gestation via normal spontaneous vaginal delivery, weighing 2,960 g, presented on postnatal day 28 with a swelling in the neck region. Physical examination revealed a well-circumscribed, painless, non-fixed mass measuring approximately 1×1 cm, localized to the left sternocleidomastoid muscle. No significant torticollis was observed, and pregnancy and delivery history were unremarkable. Laboratory findings showed no evidence of infection or inflammation. Neck ultrasonography demonstrated fusi-form thickening of the left sternocleidomastoid muscle, loss of normal fibrillar muscle architecture, and increased vascularity on Doppler examination, consistent with FC. Conservative management with phy-sical therapy was recommended. During follow-up, the mass gradually regressed and completely resol-ved by the fourth month. This case shows that FC may occur even without traumatic delivery or evident torticollis. The left-sided localization is also notable, as right-sided involvement is more commonly reported. Ultrasonography is essential for diagnosis and helps avoid unnecessary advanced imaging or invasive procedures. FC should be considered in the differential diagnosis of infantile neck masses. Early ultrasonographic evaluation and conservative treatment are usually sufficient for favorable out-comes.

Anahtar Kelimeler

Etik Beyan

Informed consent was obtained from their parents.

Kaynakça

  1. Antonovics E, Pather S, Saliba T. Fibromatosis colli: Is it a vascularised lesion on Doppler ultrasound? A systematic review of case studies. Ultrasound. 2025. doi:10.1177/1742271X251385470.
  2. Yadav NK, Hullumani S. A rare clinical image of fibromatosis colli on a 13-day-old baby. Pan Afr Med J. 2025;52:11. doi:10.11604/pamj.2025.52.11.47789.
  3. Atalar MH, Salk I, Bozbiyik N, et al. Fibromatosis colli: A rare neck mass in infancy. Basic Clin Sci. 2014;3:18-21. Available from: der-gipark.ulakbim.gov.tr/bcs/
  4. Murphey MD, Ruble CM, Tyszko SM, et al. Musculos-keletal fibromatoses: Radiologic-pathologic correla-tion. Radiographics. 2009;29:2143-2176.
  5. Ablin DS, Jain K, Howell L, et al. Ultrasound and MR imaging of fibromatosis colli (sternomastoid tumor of infancy). Pediatr Radiol. 1998;28:230-233.
  6. Aljahdali NF, Alolah AA, Alghamdi AA, et al. Fibroma-tosis colli: A case report. Cureus. 2023. doi:10.7759/cureus.47308.
  7. World Health Organization. WHO classification of tumours of soft tissue and bone. Lyon: IARC Press; 2002.
  8. Lowry KC, Estroff JA, Rahbar R. The presentation and management of fibromatosis colli. Ear Nose Throat J. 2010;89(9):E4-E8. doi:10.1177/014556131008900902

Ayrıntılar

Birincil Dil

İngilizce

Konular

Bebek ve Çocuk Sağlığı, Yenidoğan

Bölüm

Olgu Sunumu

Yayımlanma Tarihi

30 Eylül 2026

Gönderilme Tarihi

17 Nisan 2026

Kabul Tarihi

24 Haziran 2026

Yayımlandığı Sayı

Yıl 2026 Cilt: 7 Sayı: 3

Kaynak Göster

APA
Yavuz, K., Kasap, T., & Çakmak, Ö. F. (2026). A left cervical mass in a one-month-old infant: fibromatosis colli case report. Troia Medical Journal, 7(3), 167-169. https://doi.org/10.55665/troiamedj.1932432
AMA
1.Yavuz K, Kasap T, Çakmak ÖF. A left cervical mass in a one-month-old infant: fibromatosis colli case report. Troia Med J. 2026;7(3):167-169. doi:10.55665/troiamedj.1932432
Chicago
Yavuz, Korhan, Tolga Kasap, ve Ömer Faruk Çakmak. 2026. “A left cervical mass in a one-month-old infant: fibromatosis colli case report”. Troia Medical Journal 7 (3): 167-69. https://doi.org/10.55665/troiamedj.1932432.
EndNote
Yavuz K, Kasap T, Çakmak ÖF (01 Eylül 2026) A left cervical mass in a one-month-old infant: fibromatosis colli case report. Troia Medical Journal 7 3 167–169.
IEEE
[1]K. Yavuz, T. Kasap, ve Ö. F. Çakmak, “A left cervical mass in a one-month-old infant: fibromatosis colli case report”, Troia Med J, c. 7, sy 3, ss. 167–169, Eyl. 2026, doi: 10.55665/troiamedj.1932432.
ISNAD
Yavuz, Korhan - Kasap, Tolga - Çakmak, Ömer Faruk. “A left cervical mass in a one-month-old infant: fibromatosis colli case report”. Troia Medical Journal 7/3 (01 Eylül 2026): 167-169. https://doi.org/10.55665/troiamedj.1932432.
JAMA
1.Yavuz K, Kasap T, Çakmak ÖF. A left cervical mass in a one-month-old infant: fibromatosis colli case report. Troia Med J. 2026;7:167–169.
MLA
Yavuz, Korhan, vd. “A left cervical mass in a one-month-old infant: fibromatosis colli case report”. Troia Medical Journal, c. 7, sy 3, Eylül 2026, ss. 167-9, doi:10.55665/troiamedj.1932432.
Vancouver
1.Korhan Yavuz, Tolga Kasap, Ömer Faruk Çakmak. A left cervical mass in a one-month-old infant: fibromatosis colli case report. Troia Med J. 01 Eylül 2026;7(3):167-9. doi:10.55665/troiamedj.1932432

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