Spontaneous multiple cutaneous mixed tumors in Japanese giant salamander Andrias japonicus

Author(s):  
S Kadekaru ◽  
H Shimoda ◽  
K Kuwabara ◽  
Y Une
Keyword(s):  
Author(s):  
Victoria L. Wade ◽  
Winslow G. Sheldon ◽  
James W. Townsend ◽  
William Allaben

Sebaceous gland tumors and other tumors exhibiting sebaceous differentiation have been described in humans (1,2,3). Tumors of the sebaceous gland can be induced in rats and mice following topical application of carcinogens (4), but spontaneous mixed tumors of basal cell origin rarely occur in mice.


1927 ◽  
Vol 23 (4) ◽  
pp. 409-413
Author(s):  
M. S. Venetsianova

The issue of congenital tumors of the sacrococcygeal region is far from new. The famous French obstetrician Philippe Retz wrote as early as 1694 about a similar tumor that was twice the size of a newborn's head and hindered childbirth. But all previous reports were limited to a macroscopic description of the size, shape and location of the tumor. When the microscope came to the aid of the clinic, however, the interesting structure of these tumors attracted the attention of researchers, who tried to work out their classification and identify their pathogenesis. In spite of numerous works in this direction, this question, however, has not yet been completely solved. It will be solved, as Pozharisky says, only when we are able to read the last pages of tumor doctrine.


1986 ◽  
Vol 25 (4) ◽  
pp. 660-667
Author(s):  
Nobuyuki NODA ◽  
Hisamitsu KUBO ◽  
Masafumi TSUZUKU ◽  
Morio HIRATA ◽  
Atsuhiko SAKAMOTO ◽  
...  
Keyword(s):  

1949 ◽  
Vol Original Series, Volume 32 (2-3) ◽  
pp. 229-247 ◽  
Author(s):  
A. Hob k
Keyword(s):  

1986 ◽  
Vol 23 (6) ◽  
pp. 741-749 ◽  
Author(s):  
J. E. Moulton ◽  
L. S. Rosenblatt ◽  
M. Goldman

In a lifetime study, female beagle dogs in a closed colony were administered 226radium and 90strontium. An unirradiated control group was included in the study. A total of 223 of 356 dogs at risk developed 1,112 mammary proliferative growths (hyperplastic nodules and neoplasms). There was no correlation between occurrence and types of lesions in radiation and control groups. The age range for first occurrence of lesions was 10.4 to 13.9 years; hyperplastic nodule and benign mixed tumor occurred 1 to 2 years earlier than other lesions. A multiplicity of growths of similar or different morphological type were common throughout the lifetime of the dog. The female beagles, collectively, developed 244 hyperplastic nodules, 78 adenomas, 694 benign mixed tumors, 78 carcinomas, 14 malignant mixed tumors, and four myoepitheliomas. Proliferations occurred with increasing frequency from the cranial to caudal mammary glands. Metastasis was found in 77% of the dogs with carcinoma. The median time from diagnosis to metastasis was 10 months, but was shorter in dogs with infiltrative carcinoma.


2001 ◽  
Vol 125 (4) ◽  
pp. 558-561
Author(s):  
C. M. Petricek

Abstract Mixed tumors of the gastrointestinal tract, including both adenocarcinoma and germ cell neoplasm, have been reported infrequently. In the colon, only 9 cases, to our knowledge, have been described in the English-language literature. This is the case of a 29-year-old man with an unsuspected mixed colonic neoplasm that metastasized as the germ cell component.


1974 ◽  
Vol 60 (4) ◽  
pp. 307-316 ◽  
Author(s):  
Carmelo Vinicio Catania ◽  
Emanuele Galante ◽  
Gaetano Bandieramonte ◽  
Bruno Salvadori

Surgery was performed on 622 patients with tumors of the salivary glands from 1929 to 1972; the gland affected was the parotid in 527 cases, the submandibular glands in 50, and minor salivary glands of palate and other sites in 45. The analysis of distant results point out that both for benign and malignant tumors total sialoadenectomy must be the treatment of choice, as demonstrated by the high rate of recurrence after local excision or partial resection of the gland, even in cases of surely benign lesions such as mixed tumors. It is worthy of being quoted the high rate of recurrence from cylindromas, especially of the palate (48.5%), after surgical removal. As to malignancies of parotid and submandibular glands 5-years survival rates after radical surgery were of 52 % and 30 % respectively.


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