A case of squamous cell carcinoma of the breast achieved a pathological complete response after dose-dense AC + dose-dense PTX

Abstract Background Squamous cell carcinoma (SCC) of the breast is a rare form of breast cancer, accounting for approximately 0.1% of all breast cancers. It is known for its rapid tumor growth and poor prognosis with no established treatment. Case presentation A 56-year-old woman was diagnosed with...

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Main Authors: Misato Araki, Koshi Matsui, Kohji Takagi, Emi Kanaya, Shinichi Sekine, Shiho Nagasawa, Toru Watanabe, Takeshi Miwa, Katsuhisa Hirano, Takamichi Igarashi, Haruyoshi Tanaka, Kazuto Shibuya, Isaya Hashimoto, Shozo Hojo, Isaku Yoshioka, Tomoyuki Okumura, Kenichi Hirabayashi, Tsutomu Fujii
Format: Article
Language:English
Published: Japan Surgical Society 2023-08-01
Series:Surgical Case Reports
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Online Access:https://doi.org/10.1186/s40792-023-01719-3
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author Misato Araki
Koshi Matsui
Kohji Takagi
Emi Kanaya
Shinichi Sekine
Shiho Nagasawa
Toru Watanabe
Takeshi Miwa
Katsuhisa Hirano
Takamichi Igarashi
Haruyoshi Tanaka
Kazuto Shibuya
Isaya Hashimoto
Shozo Hojo
Isaku Yoshioka
Tomoyuki Okumura
Kenichi Hirabayashi
Tsutomu Fujii
author_facet Misato Araki
Koshi Matsui
Kohji Takagi
Emi Kanaya
Shinichi Sekine
Shiho Nagasawa
Toru Watanabe
Takeshi Miwa
Katsuhisa Hirano
Takamichi Igarashi
Haruyoshi Tanaka
Kazuto Shibuya
Isaya Hashimoto
Shozo Hojo
Isaku Yoshioka
Tomoyuki Okumura
Kenichi Hirabayashi
Tsutomu Fujii
author_sort Misato Araki
collection DOAJ
description Abstract Background Squamous cell carcinoma (SCC) of the breast is a rare form of breast cancer, accounting for approximately 0.1% of all breast cancers. It is known for its rapid tumor growth and poor prognosis with no established treatment. Case presentation A 56-year-old woman was diagnosed with breast SCC with axillary, supraclavicular and internal thoracic lymph node metastases. She received neoadjuvant chemotherapy (NAC) with dose-dense doxorubicin and cyclophosphamide (AC) followed by dose-dense paclitaxel (PTX). This treatment resulted in a pathological complete response (pCR) after breast-conserving surgery. The patient was then treated with radiotherapy. She remained free of recurrence for three years postoperatively. Conclusions We report a rare case of breast SCC treated with preoperative dose-dense chemotherapy, resulting in pCR and allowing breast-conserving surgery.
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institution Kabale University
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publisher Japan Surgical Society
record_format Article
series Surgical Case Reports
spelling doaj-art-9def0097edab40688949bf2053ec37fe2025-08-20T03:57:03ZengJapan Surgical SocietySurgical Case Reports2198-77932023-08-01911510.1186/s40792-023-01719-3A case of squamous cell carcinoma of the breast achieved a pathological complete response after dose-dense AC + dose-dense PTXMisato Araki0Koshi Matsui1Kohji Takagi2Emi Kanaya3Shinichi Sekine4Shiho Nagasawa5Toru Watanabe6Takeshi Miwa7Katsuhisa Hirano8Takamichi Igarashi9Haruyoshi Tanaka10Kazuto Shibuya11Isaya Hashimoto12Shozo Hojo13Isaku Yoshioka14Tomoyuki Okumura15Kenichi Hirabayashi16Tsutomu Fujii17Department of Surgery and Science, Faculty of Medicine, Academic Assembly, University of ToyamaDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of ToyamaDepartment of Diagnostic Pathology, Faculty of Medicine, Academic Assembly, University of ToyamaDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of ToyamaDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of ToyamaDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of ToyamaDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of ToyamaDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of ToyamaDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of ToyamaDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of ToyamaDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of ToyamaDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of ToyamaDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of ToyamaDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of ToyamaDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of ToyamaDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of ToyamaDepartment of Diagnostic Pathology, Faculty of Medicine, Academic Assembly, University of ToyamaDepartment of Surgery and Science, Faculty of Medicine, Academic Assembly, University of ToyamaAbstract Background Squamous cell carcinoma (SCC) of the breast is a rare form of breast cancer, accounting for approximately 0.1% of all breast cancers. It is known for its rapid tumor growth and poor prognosis with no established treatment. Case presentation A 56-year-old woman was diagnosed with breast SCC with axillary, supraclavicular and internal thoracic lymph node metastases. She received neoadjuvant chemotherapy (NAC) with dose-dense doxorubicin and cyclophosphamide (AC) followed by dose-dense paclitaxel (PTX). This treatment resulted in a pathological complete response (pCR) after breast-conserving surgery. The patient was then treated with radiotherapy. She remained free of recurrence for three years postoperatively. Conclusions We report a rare case of breast SCC treated with preoperative dose-dense chemotherapy, resulting in pCR and allowing breast-conserving surgery.https://doi.org/10.1186/s40792-023-01719-3Squamous cell carcinoma of the breastPathological complete responseNeoadjuvant chemotherapyBreast-conserving surgery
spellingShingle Misato Araki
Koshi Matsui
Kohji Takagi
Emi Kanaya
Shinichi Sekine
Shiho Nagasawa
Toru Watanabe
Takeshi Miwa
Katsuhisa Hirano
Takamichi Igarashi
Haruyoshi Tanaka
Kazuto Shibuya
Isaya Hashimoto
Shozo Hojo
Isaku Yoshioka
Tomoyuki Okumura
Kenichi Hirabayashi
Tsutomu Fujii
A case of squamous cell carcinoma of the breast achieved a pathological complete response after dose-dense AC + dose-dense PTX
Surgical Case Reports
Squamous cell carcinoma of the breast
Pathological complete response
Neoadjuvant chemotherapy
Breast-conserving surgery
title A case of squamous cell carcinoma of the breast achieved a pathological complete response after dose-dense AC + dose-dense PTX
title_full A case of squamous cell carcinoma of the breast achieved a pathological complete response after dose-dense AC + dose-dense PTX
title_fullStr A case of squamous cell carcinoma of the breast achieved a pathological complete response after dose-dense AC + dose-dense PTX
title_full_unstemmed A case of squamous cell carcinoma of the breast achieved a pathological complete response after dose-dense AC + dose-dense PTX
title_short A case of squamous cell carcinoma of the breast achieved a pathological complete response after dose-dense AC + dose-dense PTX
title_sort case of squamous cell carcinoma of the breast achieved a pathological complete response after dose dense ac dose dense ptx
topic Squamous cell carcinoma of the breast
Pathological complete response
Neoadjuvant chemotherapy
Breast-conserving surgery
url https://doi.org/10.1186/s40792-023-01719-3
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