Evidence map›Paper›PMID 41523918›Full record

ArticlePlastic and reconstructive surgery. Global open2026

Perineal Verrucous Carcinoma Associated With Hypercalcemia: First Clinical Report of Parathyroid Hormone-Related Protein-producing Tumor.

Wakana Oka, Hiroaki Kuwahara, Norio Motoda, Mayumi Ishikawa, Rei Ogawa, Satoshi Akaishi

Abstract readCase Reports
In one paragraph

Article in Plastic and reconstructive surgery. Global open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Wakana OkaFrom the Department of Plastic Surgery, Nihon Medical School Musashikosugi Hospital, Japan.
Hiroaki KuwaharaFrom the Department of Plastic Surgery, Nihon Medical School Musashikosugi Hospital, Japan.
Norio MotodaDepartment of Diagnostic Pathology, Nihon Medical School Musashikosugi Hospital, Japan.
Mayumi IshikawaCenter of Endocrinology, Diabetes and Arteriosclerosis, Nihon Medical School Musashikosugi Hospital, Japan.
Rei OgawaDepartment of Plastic, Reconstructive and Cosmetic Surgery, Nihon Medical School Hospital, Japan.
Satoshi AkaishiFrom the Department of Plastic Surgery, Nihon Medical School Musashikosugi Hospital, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cancer-related hypercalcemia typically indicates poor prognosis and occurs most commonly in squamous cell carcinoma cases. However, its occurrence in patients with verrucous carcinoma, a clinically indolent subtype, has never been reported. We present the first documented case of verrucous carcinoma-related hypercalcemia caused by parathyroid hormone-related protein (PTHrP) production. A 49-year-old man presented with weight loss, fatigue, and severe hypercalcemia. He had a 3-year history of a scrotal mass that was diagnosed as perineal verrucous carcinoma based on histopathologic examination. Laboratory results revealed markedly elevated calcium (13.0 mg/dL) and PTHrP (6.6 pmol/L) levels, confirming tumor-associated hypercalcemia. The cauliflower-like tumor measuring 17 × 15 cm involved the penis and scrotum. Complete surgical resection with bilateral inguinal lymph node dissection was performed. Split-thickness skin grafts provided wound coverage over the large perineal defect. Immunohistochemical staining confirmed PTHrP production by tumor cells that had invaded beyond the basement membrane. Postoperative calcium (9.8 mg/dL) and PTHrP (<1.1 pmol/L) levels normalized rapidly. Histopathology confirmed verrucous carcinoma with dermal invasion; however, no lymph node metastasis occurred.

Identifiers

PMID41523918
PMCPMC12783993

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