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Year : 2018  |  Volume : 5  |  Issue : 2  |  Page : 110-112

Pilomatricoma with apocrine poroma: A novel cutaneous collision tumor

1 Department of Pathology, St. John's Medical College and Hospital, Bengaluru, Karnataka, India
2 Department of Surgical Oncology, St. John's Medical College and Hospital, Bengaluru, Karnataka, India

Correspondence Address:
Dr. Rajalakshmi Tirumalae
Department of Pathology, St. John's Medical College, Bengaluru - 560 034, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijdpdd.ijdpdd_28_18

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The term “collision tumor” implies the occurrence of two or more neoplasms in a single biopsy specimen. This is a rare feature in skin biopsies, with most of the reported combinations involving melanocytic lesions or basal cell carcinomas. Combinations of adnexal tumors are found very sporadically. We report a 67-year-old woman with a scalp nodule, clinically suspected to be verrucous carcinoma, who underwent a wide excision. Histopathology showed apocrine poroma with adjacent regressing pilomatricoma.

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