Vet Pathol Email Content Delivery
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Takahashi, K.
Right arrow Articles by Maita, K.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Takahashi, K.
Right arrow Articles by Maita, K.
Vet Pathol 37:499-501 (2000)
© 2000 American College of Veterinary Pathologists
BRIEF COMMUNICATIONS AND CASE REPORTS

Pulmonary Microcystic Hamartoma in an Adult Dog

K. Takahashi, K. Maeda, S. Nakamura, M. Fujita, H. Orima, M. Tagawa, M. Kuwahara, N. Nakashima and K. Maita

Abstract

Microcystic hamartoma was detected as a tumorlike mass in the left caudal lung lobe of a 12-year-old mixed-breed dog. Histologically, the mass was characterized by microcysts of various sizes that mimicked alveoli and were surrounded by thin fibrous septal tissue. However, unlike the adjacent lung parenchyma, bronchial or bronchiolar trees were absent, and the septal vascular channels were extremely underdeveloped. Immunohistochemically, the cells lining the microcysts were consistently positive for cytokeratin but not for vimentin, whereas the septal fibroblast-like cells were negative for cytokeratin and positive for vimentin. Electron microscopy confirmed that the microcysts were lined with a layer of type I and type II mature pneumocytes. This is the first description of the detailed morphologic features of microcystic hamartoma.

Key words: Dogs; lung; microcystic hamartoma.

Request reprints from Dr. K. Takahashi, Department of Veterinary Pathology, Nippon Veterinary and Animal Science University, 1-7-1, Kyounan-cho, Musashino-shi, Tokyo 180-8602 (Japan).




This article has been cited by other articles:


Home page
 Vet Rec.Home page
A. J. F. Matos, S. Duarte, C. Lopes, J. M. Lopes, and F. Gartner
Splenic hamartomas in a dog
Vet Rec., September 1, 2007; 161(9): 308 - 310.
[Full Text] [PDF]

Home page
 Vet PatholHome page
G. K. Saunders
Cranial Nerve Hamartoma in a Dog
Vet. Pathol., March 1, 2007; 44(2): 253 - 254.
[Abstract] [Full Text] [PDF]

Home page
 Vet PatholHome page
M. F. Starost
Solitary Biliary Hamartoma with Cholelithiasis in a Domestic Rabbit (Oryctolagus cuniculus)
Vet. Pathol., January 1, 2007; 44(1): 92 - 95.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2000 by the American College of Veterinary Pathologists.