A Case of Pulmonary Hamartoma Showing Rapid Growth

A 65-year-old man was admitted for detailed examination of a growing nodular shadow in the left lung. The nodular shadow was initially detected in a routine chest X-ray check-up in March 2012 that warranted regular chest X-ray follow-up. The nodular shadow increased in size from 12 × 15 mm to 15 × 2...

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Main Authors: Masamichi Itoga, Yoshiki Kobayashi, Masahide Takeda, Yuki Moritoki, Mami Tamaki, Kenji Nakazawa, Toru Sasaki, Hayato Konno, Ikuo Matsuzaki, Shigeharu Ueki
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Case Reports in Medicine
Online Access:http://dx.doi.org/10.1155/2013/231652
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author Masamichi Itoga
Yoshiki Kobayashi
Masahide Takeda
Yuki Moritoki
Mami Tamaki
Kenji Nakazawa
Toru Sasaki
Hayato Konno
Ikuo Matsuzaki
Shigeharu Ueki
author_facet Masamichi Itoga
Yoshiki Kobayashi
Masahide Takeda
Yuki Moritoki
Mami Tamaki
Kenji Nakazawa
Toru Sasaki
Hayato Konno
Ikuo Matsuzaki
Shigeharu Ueki
author_sort Masamichi Itoga
collection DOAJ
description A 65-year-old man was admitted for detailed examination of a growing nodular shadow in the left lung. The nodular shadow was initially detected in a routine chest X-ray check-up in March 2012 that warranted regular chest X-ray follow-up. The nodular shadow increased in size from 12 × 15 mm to 15 × 20 mm within five months. The calculated tumor doubling time (TDT) in our case was approximately 132.2 days. A malignant tumor was strongly suspected based on the rapid growth, and tumorectomy was thus performed. Cartilaginous tissue accounted for most of the pathological specimen, but a small amount of an epithelial component was observed histologically, and we diagnosed a hamartoma. Hamartoma generally shows slow annual growth, but it is important to recognize that rapid enlargement occurs in some cases.
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publishDate 2013-01-01
publisher Wiley
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series Case Reports in Medicine
spelling doaj-art-8d528b119f3d4adc8f0296e47a19cf232025-08-20T02:09:35ZengWileyCase Reports in Medicine1687-96271687-96352013-01-01201310.1155/2013/231652231652A Case of Pulmonary Hamartoma Showing Rapid GrowthMasamichi Itoga0Yoshiki Kobayashi1Masahide Takeda2Yuki Moritoki3Mami Tamaki4Kenji Nakazawa5Toru Sasaki6Hayato Konno7Ikuo Matsuzaki8Shigeharu Ueki9Department of Infection, Allergy, Clinical Immunology and Laboratory Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, JapanDepartment of Infection, Allergy, Clinical Immunology and Laboratory Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, JapanDepartment of Infection, Allergy, Clinical Immunology and Laboratory Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, JapanDepartment of Infection, Allergy, Clinical Immunology and Laboratory Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, JapanDepartment of Infection, Allergy, Clinical Immunology and Laboratory Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, JapanJapan Labour, Health and Welfare Organization, Akita Rosai Hospital, 30 Karuizawa Shimotai, Odate City, Akita 018-5604, JapanJapan Labour, Health and Welfare Organization, Akita Rosai Hospital, 30 Karuizawa Shimotai, Odate City, Akita 018-5604, JapanNoshiro Yamamoto Medical Association Hospital, 105-11 Hiyama Shin-tazawa, Noshiro City, Akita 016-0151, JapanNoshiro Yamamoto Medical Association Hospital, 105-11 Hiyama Shin-tazawa, Noshiro City, Akita 016-0151, JapanDepartment of Infection, Allergy, Clinical Immunology and Laboratory Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, JapanA 65-year-old man was admitted for detailed examination of a growing nodular shadow in the left lung. The nodular shadow was initially detected in a routine chest X-ray check-up in March 2012 that warranted regular chest X-ray follow-up. The nodular shadow increased in size from 12 × 15 mm to 15 × 20 mm within five months. The calculated tumor doubling time (TDT) in our case was approximately 132.2 days. A malignant tumor was strongly suspected based on the rapid growth, and tumorectomy was thus performed. Cartilaginous tissue accounted for most of the pathological specimen, but a small amount of an epithelial component was observed histologically, and we diagnosed a hamartoma. Hamartoma generally shows slow annual growth, but it is important to recognize that rapid enlargement occurs in some cases.http://dx.doi.org/10.1155/2013/231652
spellingShingle Masamichi Itoga
Yoshiki Kobayashi
Masahide Takeda
Yuki Moritoki
Mami Tamaki
Kenji Nakazawa
Toru Sasaki
Hayato Konno
Ikuo Matsuzaki
Shigeharu Ueki
A Case of Pulmonary Hamartoma Showing Rapid Growth
Case Reports in Medicine
title A Case of Pulmonary Hamartoma Showing Rapid Growth
title_full A Case of Pulmonary Hamartoma Showing Rapid Growth
title_fullStr A Case of Pulmonary Hamartoma Showing Rapid Growth
title_full_unstemmed A Case of Pulmonary Hamartoma Showing Rapid Growth
title_short A Case of Pulmonary Hamartoma Showing Rapid Growth
title_sort case of pulmonary hamartoma showing rapid growth
url http://dx.doi.org/10.1155/2013/231652
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