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Yuzawa M, Ohta H, Nomura M, Minegishi K, Oshiro H, Yamaguchi Y. A case of prominent immunoglobulin G4-positive lymphadenopathy in response to microscopic lung cancer. Respirol Case Rep 2021; 9:e0854. [PMID: 34631102 PMCID: PMC8488362 DOI: 10.1002/rcr2.854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 08/30/2021] [Accepted: 09/12/2021] [Indexed: 11/06/2022] Open
Abstract
Immunoglobulin G4 (IgG4)-related disease is established as a new clinical entity, characterized by high levels of plasma IgG4 and IgG4-positive plasma cell infiltration. However, the elevation of plasma IgG4 and infiltration of IgG4-positive cells have been observed in other diseases, including malignancy. We experienced a case of prominent IgG4-positive lymphadenopathy, which was diagnosed as a reactive lesion in response to lung cancer. The cancerous lesion was so small in size that it was difficult to reveal the coexisting lung cancer. Surgical lymph node biopsy and endobronchial ultrasound-guided transbronchial needle aspiration did not reveal lymph node metastasis of cancer. Mediastinal lymph node dissection finally revealed it. After the right upper lobectomy, the patient underwent postoperative chemotherapy and remains cancer-free after 1 year. Our case suggests that close examination and careful follow-up are necessary when IgG4-positive lymphadenopathy is observed.
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Affiliation(s)
- Motoi Yuzawa
- Department of Respiratory Medicine, Saitama Medical CenterJichi Medical UniversitySaitamaJapan
| | - Hiromitsu Ohta
- Department of Respiratory Medicine, Saitama Medical CenterJichi Medical UniversitySaitamaJapan
| | - Motoko Nomura
- Department of Respiratory Medicine, Saitama Medical CenterJichi Medical UniversitySaitamaJapan
| | - Kentaro Minegishi
- Department of Thoracic Surgery, Saitama Medical CenterJichi Medical UniversitySaitamaJapan
| | - Hisashi Oshiro
- Department of Pathology, Saitama Medical CenterJichi Medical UniversitySaitamaJapan
| | - Yasuhiro Yamaguchi
- Department of Respiratory Medicine, Saitama Medical CenterJichi Medical UniversitySaitamaJapan
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Ikebe S, Minami S, Ihara S, Yasuoka H, Komuta K. Pulmonary Adenosquamous Cell Carcinoma With Systemic Lymphadenopathy due to Immunoglobulin G4-Related Disease: A Case Report. J Med Cases 2021; 12:164-171. [PMID: 34434452 PMCID: PMC8383661 DOI: 10.14740/jmc3649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 01/27/2021] [Indexed: 11/11/2022] Open
Abstract
A 75-year-old man with diabetes mellitus showed elevated C-reactive protein (CRP) level at his regular visit. Computed tomography scan showed a lung tumor in his left lower lobe and systemic lymphadenopathy including abdominal lymph nodes. The patient was diagnosed as primary pulmonary squamous cell carcinoma with systemic lymph node metastasis. Thereafter, unexpected steroid pulse therapy for accidental acute exacerbation of interstitial pneumonia rapidly shrank lymphadenopathy. At this time, we also found elevated serum immunoglobulin G4 (IgG4) level (385 mg/dL). Considering these findings, we doubted the lymph nodes metastases at the initial staging, and then corrected cancer-staging (C-staging) from inferior vena cava (IVC) to inferior abdomen (IA). In addition, during the steroid tapering, sudden onset and uncontrollable left pneumothorax required surgical approach. Curative-intent left lower lobectomy with lymphadenectomy was performed for the lung cancer. Pathological findings revealed coexistence of adenosquamous carcinoma and infiltration of IgG4-positive plasma cells in the resected mediastinal lymph node. We detected 384 IgG4-positive cells per high power field. IgG4/IgG-positive cell ratio was 54%. Based on these findings, the diagnosis of IgG4-related disease with primary adenosquamous carcinoma (p-stage IIIA) was confirmed. The patient died 24 days after surgery because of another acute exacerbation of interstitial pneumonia. Our case alerts oncologists to IgG4-related disease as a possible underlying comorbidity which may confuse pretreatment clinical stage.
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Affiliation(s)
- Saori Ikebe
- Department of Respiratory Medicine, Osaka Police Hospital, 10-31 Kitayama-cho, Tennoji-ku, Osaka 543-0035, Japan
| | - Seigo Minami
- Department of Respiratory Medicine, Osaka Police Hospital, 10-31 Kitayama-cho, Tennoji-ku, Osaka 543-0035, Japan.,Department of Respiratory Medicine, Daini Osaka Police Hospital, 2-6-40 Karasuga-tuji, Tennoji-ku, Osaka 543-0042, Japan
| | - Shouichi Ihara
- Department of Respiratory Medicine, Osaka Police Hospital, 10-31 Kitayama-cho, Tennoji-ku, Osaka 543-0035, Japan.,Department of Respiratory Medicine, Daini Osaka Police Hospital, 2-6-40 Karasuga-tuji, Tennoji-ku, Osaka 543-0042, Japan
| | - Hironao Yasuoka
- Department of Respiratory Medicine, Osaka Police Hospital, 10-31 Kitayama-cho, Tennoji-ku, Osaka 543-0035, Japan
| | - Kiyoshi Komuta
- Department of Respiratory Medicine, Daini Osaka Police Hospital, 2-6-40 Karasuga-tuji, Tennoji-ku, Osaka 543-0042, Japan
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