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Yorita K, Fujii T, Nagao T, Murakami I, Hashida Y, Higuchi T, Daibata M, Toi M, Ayada Y, Igawa T. Kimura disease forming a human polyomavirus 6–negative parotid gland nodule with prominent squamous metaplasia in a young female: A case report. Radiol Case Rep 2023; 18:1933-1938. [PMID: 36970233 PMCID: PMC10030818 DOI: 10.1016/j.radcr.2023.02.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/10/2023] [Accepted: 02/12/2023] [Indexed: 03/18/2023] Open
Abstract
A case of an asymptomatic 19-year-old woman with Kimura disease presenting with a nodule in the right parotid gland is presented. She had a medical history of atopic dermatitis and noticed a mass on her right-side neck. Cervical lymphadenopathy was clinically diagnosed. The initial management plan was to observe the lesion, which had enlarged from 1 cm to 2 cm in diameter 6 months later. An excisional biopsy was performed, and the pathology confirmed an eosinophil-containing inflammatory parotid gland lesion with many squamous nests and cysts, mimicking a parotid gland tumor. High serum immunoglobulin E levels, peripheral blood eosinophilia, and pathological and genetic diagnoses confirmed Kimura disease. The lesion tested negative for human polyomavirus 6. No recurrence was observed 15 months after the biopsy. The prognosis of Kimura disease without human polyomavirus 6 infection may be favorable; however, further validation of this hypothesis is required as only 5 or 6 cases of Kimura disease have been evaluated for this viral infection. Proliferative squamous metaplasia occurring in parotid gland lesions of Kimura disease is rare and may complicate the diagnostic imaging and pathological diagnosis.
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Affiliation(s)
- Kenji Yorita
- Department of Diagnostic Pathology, Japanese Red Cross Kochi Hospital, 1-4-63-11, Hadaminami-machi, Kochi-shi, Kochi, 780-8562, Japan
- Department of Diagnostic Pathology, Kochi University Hospital, Kohasu, Oko-cho, Nankoku-shi, Kochi, 783-8505, Japan
- Corresponding author.
| | - Tatsuya Fujii
- Department of Otorhinolaryngology, JA Kochi Hospital, 526-1, Nakano, Aza, Myouken, Nankoku-shi, Kochi, 783-8509, Japan
| | - Toshitaka Nagao
- Department of Anatomic Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Ichiro Murakami
- Department of Diagnostic Pathology, Kochi University Hospital, Kohasu, Oko-cho, Nankoku-shi, Kochi, 783-8505, Japan
- Department of Pathology, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku-shi, Kochi, 783-8505, Japan
| | - Yumiko Hashida
- Department of Microbiology and Infection, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku-shi, Kochi, 783-8505, Japan
| | - Tomonori Higuchi
- Department of Microbiology and Infection, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku-shi, Kochi, 783-8505, Japan
| | - Masanori Daibata
- Department of Microbiology and Infection, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku-shi, Kochi, 783-8505, Japan
| | - Makoto Toi
- Department of Diagnostic Pathology, Kochi University Hospital, Kohasu, Oko-cho, Nankoku-shi, Kochi, 783-8505, Japan
| | - Yoshiyuki Ayada
- Department of Pathology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, 2-5-1, Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Takuro Igawa
- Department of Pathology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, 2-5-1, Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
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