scholarly journals Distant metastasis in retroperitoneal dedifferentiated liposarcoma is rare and rapidly fatal: a clinicopathological study with emphasis on the low-grade myxofibrosarcoma-like pattern as an early sign of dedifferentiation

2005 ◽  
Vol 18 (7) ◽  
pp. 976-984 ◽  
Author(s):  
Hsuan-Ying Huang ◽  
Murray F Brennan ◽  
Samuel Singer ◽  
Cristina R Antonescu
1995 ◽  
Vol 109 (5) ◽  
pp. 466-468 ◽  
Author(s):  
Bonnie L. Kemp ◽  
John G. Batsakis ◽  
Adel K. El-Naggar ◽  
Sophia N. Kotliar ◽  
Mario A. Luna

AbstractThe major salivary glands are considered to rarely be the sites of primary terminal duct adenocarcinomas, a neoplasm with a considerable predilection for origin from intraoral minor salivary glands. We present a clinicopathological study of 22 terminal duct adenocarcinomas of the parotid gland, the largest single series to date. A comparison between the parotid neoplasms and over 200 minor salivary gland terminal duct adenocarcinomas indicates there is little difference in biological behaviour and confirms the low-grade quality of the carcinomas, regardless of site of origin.


2021 ◽  
pp. 1827-1833
Author(s):  
Hiroki Yamada ◽  
Toshirou Fukushima ◽  
Takashi Kobayashi ◽  
Shintaro Kanda ◽  
Tomonobu Koizumi ◽  
...  

Carotid body paraganglioma is a rare neuroendocrine tumor presenting with low-grade histological and clinical features. However, the tumor has the potential to produce distant metastasis, and due to its rarity, little information is available regarding chemotherapy for such metastatic lesions. Here, we report a case of carotid body paraganglioma with development of pulmonary and bone metastases 10 years after radical surgery for the primary lesion in the neck. The lesions showed a good response to cyclophosphamide, vincristine, and dacarbazine chemotherapy. A beneficial therapeutic outcome by chemotherapy is extremely rare in patients with metastatic carotid body paraganglioma.


2010 ◽  
Vol 15 (1) ◽  
pp. 148-152 ◽  
Author(s):  
Makoto Endo ◽  
Yoshinao Oda ◽  
Katsumi Harimaya ◽  
Sadafumi Tamiya ◽  
Hidetaka Yamamoto ◽  
...  

2021 ◽  
pp. 106689692110628
Author(s):  
Natalia Georgantzoglou ◽  
Donald Green ◽  
Joel A. Lefferts ◽  
Linda Giannikaki ◽  
Eudoxia Chliara ◽  
...  

Dedifferentiated liposarcoma is a nonlipogenic sarcoma of variable histological grade that frequently arises in association with a well-differentiated liposarcoma. Dedifferentiation occurs in approximately 10% of well-differentiated liposarcomas and is most commonly encountered in the retroperitoneum. Dedifferentiated liposarcoma of the upper respiratory tract is an extremely rare occurrence. Herein, we report a very rare case of low-grade dedifferentiated liposarcoma of the pharynx that presented as a polyp mimicking a benign process clinically and microscopically. We discuss the relevant molecular findings and review the current literature.


Apmis ◽  
2001 ◽  
Vol 109 (6) ◽  
pp. 419-427 ◽  
Author(s):  
Masaru Kojima ◽  
Shigeo Nakamura ◽  
Hideaki Itoh ◽  
Katsue Yoshida ◽  
Taizan Suchi ◽  
...  

2020 ◽  
Vol 13 (2) ◽  
pp. 683-688
Author(s):  
Fumihiro Nishimaki ◽  
Takahiko Gibo ◽  
Keita Tsukada ◽  
Takuro Noguchi ◽  
Toshirou Fukushima ◽  
...  

Papillary cystadenocarcinoma is an uncommon disease with low-grade histological and clinical features. Although the tumor has the potential to produce regional lymph node metastasis, there have been no reports of cases with distant metastasis. We describe a case of papillary cystadenocarcinoma arising from the maxilla that developed pulmonary metastasis 3 years after radical surgery of the primary tumor and regional lymph node. The histological findings were confirmed on resected specimens of the pulmonary nodule and a pathological diagnosis of a metastatic lesion derived from papillary cystadenocarcinoma was made. To our knowledge, this is the first report of the development of pulmonary metastasis in a patient with papillary cystadenocarcinoma. The present case suggests that papillary cystadenocarcinoma has the potential to produce lung metastasis in the clinical course. Based on our experience, we emphasize that long-term follow-up and/or careful examination are necessary in patients with cystadenocarcinoma, especially in patients with lymph node metastasis during the initial surgical therapy.


2014 ◽  
Vol 47 (02) ◽  
pp. 259-262 ◽  
Author(s):  
Shalaka Indap ◽  
Manjiri Dasgupta ◽  
Nilay Chakrabarti ◽  
Abhishek Agarwal

ABSTRACTA low-grade fibromyxoid sarcoma is a rare soft tissue tumour that has a tendency to develop in the deep soft tissue of young adults with potential for local recurrence or distant metastasis. We describe a 40-year-old female patient with a low-grade fibromyxoid sarcoma of the shoulder that had been excised twice in the past and then had recurred after a few months. A wide resection of this tumour with flap reconstruction was performed followed by radiation to the area. The patient had no evidence of local recurrence or distant metastasis at 2 years after surgery.


2021 ◽  
pp. 1-8
Author(s):  
Tatsuro Yamaguchi ◽  
Kohei Murata ◽  
Tetsuya Shiota ◽  
Hiroshi Takeyama ◽  
Shingo Noura ◽  
...  

Introduction: Recently, “low-grade appendiceal mucinous neoplasms” (LAMNs) have been proposed as one subtype of appendiceal mucinous neoplasms, characterized by a villous or flat proliferation of mucinous epithelium with low-grade cytologic atypia. The aim of this study was to clarify the clinicopathological characteristics of LAMN. Methods: In this multi-institutional cohort study, we retrospectively analyzed the clinicopathological characteristics in appendiceal neoplasms patients who underwent treatment from 2000 to 2017. Results: In total, 922 patients were enrolled, with 279 (30.3%) cases of LAMN, and 93 (10.1%) cases of non-LAMN disease. In comparison with patients with non-LAMN disease, those with LAMN had significantly lower levels of CA19-9 (p = 0.045), a lower frequency of T4 tumors (p < 0.0001), a lower frequency of lymph node metastasis (p < 0.0001), and a lower frequency of distant metastasis (p < 0.0001). Survival analysis revealed that patients with LAMN had a significantly better prognosis than did those with non-LAMN disease (p < 0.001). Among the patients with distant metastasis, those with LAMN had a significantly better prognosis than did those with non-LAMN disease (p = 0.0020), but among the patients without distant metastasis, the difference between the 2 groups was not significant (p = 0.26). However, among patients who underwent complete resection, the difference in prognosis between the 2 groups was not significant (p = 0.10). Conclusions: A multicenter retrospective study revealed that the clinicopathological characteristics of LAMN was different from those of non-LAMN.


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