CC BY 4.0 · Journal of Health and Allied Sciences NU 2023; 13(03): 440-442
DOI: 10.1055/s-0042-1758035
Case Report

Giant Sternal Pilomatricoma: An Unusual Tumor at an Uncommon Site

Abhijith Sudhakar Shetty
1   Department of General Surgery, K S Hegde Medical Academy of Nitte (Deemed to be University), Mangalore, Karnataka, India
Kishan Prasad HL
2   Department of Pathology, K S Hegde Medical Academy of Nitte (Deemed to be University), Mangalore, Karnataka, India
Ritu Asnani
2   Department of Pathology, K S Hegde Medical Academy of Nitte (Deemed to be University), Mangalore, Karnataka, India
› Author Affiliations


Pilomatricoma, pilomatrixoma, or calcified epithelioma of Malherbe is an uncommon, benign, isolated tumor of hair matrix primarily seen in children and young adults. The most common location is the head and neck region. It usually manifests as a small nodular mass. Here we report a rare case of giant pilomatricoma over the sternum in a 60-year-old male patient with an unusual clinical and radiological presentation mimicking a calcified sebaceous cyst.

Publication History

Article published online:
28 November 2022

© 2022. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (

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  • References

  • 1 Marzouki A, Chbani B, Bennani A, Lahrach K, Boutayeb F. Giant pilomatrixoma of the arm: an unusual presentation (a case report). J Saudi Soc Dermatol Surg 2013; 17 (01) 33-35
  • 2 Lee SY, Ryu YJ, Her Y, Sung KY. Pilomatricoma: an unusual presentation. Ann Dermatol 2014; 26 (06) 791-792
  • 3 Inagaki A, Yamashita Y, Mori Y, Takeuchi E, Asaoka K, Murakami S. An unusual tumour of the ear: pilomatricoma in a middle-aged woman. Case Rep Otolaryngol 2019; 2019: 4975216
  • 4 Marino MA, Ascenti G, Cardia R, Ieni A, Colonna MR. Pilomatrixoma of the right thigh: Sonographic-pathologic correlation in a young man. Radiol Case Rep 2019; 15 (03) 230-233
  • 5 DeRosa DC, Lin-Hurtubise K. Pilomatricoma: an unusual dermatologic neoplasm. Hawaii J Med Public Health 2012; 71 (10) 282-286
  • 6 Beattie G, Tai C, Pinar Karakas S, Cham E, Idowu O, Kim S. Colossal pilomatrixoma. Ann R Coll Surg Engl 2018; 100 (02) e38-e40
  • 7 Bansal C, Handa U, Mohan H. Fine needle aspiration cytology of pilomatrixoma. J Cytol 2011; 28 (01) 1-6
  • 8 Thapliyal N, Joshi U, Vaibhav G, Sayana A, Srivastava AK, Jha RS. Pilomatricoma mimicking small round cell tumor on fine needle aspiration cytology: a case report. Acta Cytol 2008; 52 (05) 627-630
  • 9 Gupta M, Gupta V, Kumar R, Jhajj K. Pilomatrixoma: a diagnostic pitfall in fine-needle aspiration cytology. J Evol Med Dent Sci 2014; 13 (03) 1691-1697
  • 10 Bilings DS. Tumour and Tumour like conditions of the skin. Rosai and Ackerman's Surgical Pathology. 11th ed.. Philadelphia: Elsevier; 2018: 67-68
  • 11 Harsha MS. E RG, Jakkula S. Benign proliferative pilomatricoma over sternum: a rare case. Int Surg J 2018; 5 (07) 2657-2659