scholarly journals Signet ring cell carcinoma of rectum metastasizing to synchronous renal cell carcinoma: a case report

2021 ◽  
Vol 15 (1) ◽  
Author(s):  
Blagica Krsteska ◽  
Rubens Jovanovic ◽  
Aleksandar Eftimov ◽  
Boro Ilievski ◽  
Dragan Hadzi-Mancev ◽  
...  

Abstract Background Rectal signet ring cell carcinoma is a rare type of colorectal adenocarcinoma characterized by an aggressive biological behavior and poor prognosis. The co-occurrence of colorectal carcinoma and renal cell carcinoma (RCC) has found in many hundreds of patients, many of whom also have additional malignancies. Cancer to cancer metastasis is rare and an uncommon phenomenon in malignancy, especially at the time of initial diagnosis, suggesting a genetic susceptibility. Case presentation We present the case of a 66-year-old Macedonian man with synchronous rectal signet ring cell carcinoma and RCC with tumor to tumor metastasis feature. He underwent a left nephrectomy and anterior rectal resection after complaining of constipation for 3–4 months and the appearance of synchronous tumors on the imaging studies. Morphology and immunohistochemical analysis of specimens from the RCC revealed signet ring cells identical to the rectal signet ring cell carcinoma. The next-generation sequencing study revealed mutations in TP53 and ERBB2, and microsatellite stable signet ring cell carcinoma was determined by deoxyribonucleic acid (DNA) sequencing. Conclusions Cancer to cancer metastasis, although rare, needs to be considered in synchronous tumors. RCC, when diagnosed in multiple synchronous tumors, should be examined carefully. The paucity of reported cases indicates the need for advanced research in imaging methods for metastasis and new therapeutic approaches.

2015 ◽  
Vol 31 (5) ◽  
pp. 1071-1072 ◽  
Author(s):  
Luca Turati ◽  
Francesca Steccanella ◽  
Fausto Petrelli ◽  
Elisabetta Vitali ◽  
Sandro Barni ◽  
...  

2021 ◽  
Author(s):  
Junying Liu ◽  
Cai Chang ◽  
Haixian Zhang

Abstract Background To describe the gray scale ultrasound features of metastatic ovarian tumors on the basis of the origin of the primary tumor in a large study population. This retrospective study included 112 patients with 188 histopathologically confirmed metastatic ovarian tumors. Among the patients, 102 were detected with 143 masses via ultrasonography. Patient age, mass bilaterality, maximum tumor diameter and ultrasound image character were recorded. Results Ultrasound images were classified into three subtypes: (type A) multilocular-solid, (type B) purely solid, and (type C) solid with several round or oval cysts. The metastatic tumors in the ovaries were mostly bilateral but had a lower rate of bilaterality when detected by ultrasound. Breast cancer metastasis had the highest misdetection rate (69.6%) because its focal metastasis could only be recognized by histology or immunohistochemistry. Stomach was the most common origin of metastasis: 45.7% and 51.0% via pathology and ultrasonography, respectively. Metastases that originated from colon mostly belonged to type A (65.9%) and closely mimicked primary epithelial ovarian tumor morphologically. Metastases that originated from stomach predominantly belonged to types B (31.9%) and C (58.3%). Signet-ring cell carcinoma (SRCC) corresponded to types B and C only regardless of its origin. Conclusions The novel typing method developed herein provides more vivid images for classifying ovary metastasis compared with existing typing methods.


2021 ◽  
Author(s):  
Qian Da ◽  
Shijie Deng ◽  
Jiahui Li ◽  
Hongmei Yi ◽  
Xiaodi Huang ◽  
...  

Abstract Signet ring cell carcinoma(SRCC) is a malignant tumor of the digestive system. This tumor has long been considered to be poorly differentiated and highly invasive because it has a higher rate of metastasis than well-differentiated adenocarcinoma. But some studies in recent years have shown that the prognosis of some SRCC is more favorable than other poorly differentiated adenocarcinomas, which suggests that SRCC has different degrees of biological behavior. Therefore, we need to find a histological stratification that can predict the biological behavior of SRCC. Some studies indicate that the morphological status of cells can be linked to the invasiveness potential of cells, however, the traditional histopathological examination can not objectively define and evaluate them. Recent improvements in biomedical image analysis using deep learning(DL) based neural networks could be exploited to identify and analyze SRCC. In this study, we used DL to identify each cancer cell of SRCC in whole slide images(WSIs) and quantify their morphological characteristics and atypia. Our results show that the biological behavior of SRCC can be predicted by quantifying the morphology of cancer cells by DL. This technique could be used to predict the biological behavior and may change the stratified treatment of SRCC.


2021 ◽  
Vol 11 ◽  
Author(s):  
Shuai Zhao ◽  
Ling Lv ◽  
Kai Zheng ◽  
Yu Tian ◽  
Jian-Chun Zheng ◽  
...  

BackgroundThe clinical pathology of gastric signet-ring cell carcinoma (SRC) is still unclear. This meta-analysis was performed to evaluate the difference in biological behavior and prognosis between SRC and non-signet ring cell carcinoma (NSRC).MethodsA total of 58 eligible studies were analyzed using RevMan and other auxiliary software. Biological behaviors were compared based on odds ratio (OR) and mean difference (MD). Hazards ratio (HR) was calculated for prognosis based on Kaplan–Meier curves.ResultsTotally, 28,946 SRC patients were compared with 81,917 NSRC patients. Compared with NSRC patients, lower male: female ratio (OR = 0.53, P < 0.01), younger age (MD = −4.89, P < 0.01), more middle location (OR = 1.64, P < 0.01), more depressed type at early stage (OR = 1.31, P < 0.05), higher incidence of Borrmann type IV (OR = 1.96, P < 0.01), less lymph node metastasis at early stage (OR = 0.78, P < 0.05), better prognosis at early stage (HR = 0.59, P < 0.01), and worse prognosis at advanced stage (HR = 1.19, P < 0.01) were associated with SRC patients.ConclusionThe prognosis of SRC at early stage is better than other types of gastric cancer, while that of SRC at advanced stage is relatively poorer.


2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Qian Da ◽  
Shijie Deng ◽  
Jiahui Li ◽  
Hongmei Yi ◽  
Xiaodi Huang ◽  
...  

AbstractSignet ring cell carcinoma (SRCC) is a malignant tumor of the digestive system. This tumor has long been considered to be poorly differentiated and highly invasive because it has a higher rate of metastasis than well-differentiated adenocarcinoma. But some studies in recent years have shown that the prognosis of some SRCC is more favorable than other poorly differentiated adenocarcinomas, which suggests that SRCC has different degrees of biological behavior. Therefore, we need to find a histological stratification that can predict the biological behavior of SRCC. Some studies indicate that the morphological status of cells can be linked to the invasiveness potential of cells, however, the traditional histopathological examination can not objectively define and evaluate them. Recent improvements in biomedical image analysis using deep learning (DL) based neural networks could be exploited to identify and analyze SRCC. In this study, we used DL to identify each cancer cell of SRCC in whole slide images (WSIs) and quantify their morphological characteristics and atypia. Our results show that the biological behavior of SRCC can be predicted by quantifying the morphology of cancer cells by DL. This technique could be used to predict the biological behavior and may change the stratified treatment of SRCC.


2020 ◽  
Author(s):  
Junying Liu ◽  
Cai Chang ◽  
Haixian Zhang

Abstract Background To describe the gray scale ultrasound features of metastatic ovarian tumors on the basis of the origin of the primary tumor in a large study population. This retrospective study included 112 patients with 188 histopathologically confirmed metastatic ovarian tumors. Among the patients, 102 were detected with 143 masses via ultrasonography. Patient age, mass bilaterality, and maximum tumor diameter were recorded. Results Ultrasound images were classified into three subtypes: (type A) multilocular-solid, (type B) purely solid, and (type C) solid with several round or oval cysts. The metastatic tumors in the ovaries were mostly bilateral but had a lower rate of bilaterality when detected by ultrasound. Breast cancer metastasis had the highest misdetection rate (69.6%) because its focal metastasis could only be recognized by histology or immunohistochemistry. Stomach was the most common origin of metastasis: 45.7% and 51.0% via pathology and ultrasonography, respectively. Metastases that originated from colon mostly belonged to type A (65.9%) and closely mimicked primary epithelial ovarian tumor morphologically. Metastases that originated from stomach predominantly belonged to types B (31.9%) and C (58.3%). Signet-ring cell carcinoma (SRCC) corresponded to types B and C only regardless of its origin. Conclusions The novel typing method developed herein provides more vivid images for classifying ovary metastasis compared with existing typing methods. Given that no specific sonographic parameters have been established to distinguish metastatic ovarian masses from primary invasive ovarian tumors, these images can be helpful in diagnosing these masses.


2018 ◽  
Vol 12 (2) ◽  
pp. 277-285 ◽  
Author(s):  
Jonatan Vukovic ◽  
Pavle Vrebalov Cindro ◽  
Snjezana Tomic ◽  
Ante Tonkic

Primary signet ring cell carcinoma is a rare event in surgery. It looks like acute appendicitis and it is difficult to diagnose it on clinical grounds alone. The diagnosis is always confirmed by histopathology of a surgically removed appendix. A young man, 22 years old, presented with vomiting, diarrhea, and cramps in his abdomen without abdominal tenderness (mild abdominal discomfort in the right lower abdominal quadrant without signs of peritoneal irritation) during the previous month. The first endoscopic results showed only changes of mucosa that could be attributed to endoscopic and clinical representation of Crohn’s disease. A few days after the initiation of the therapy with aminosalicylates and corticosteroids, the patient went into ileus and was transferred to the Department of Surgery, where he underwent an emergency right-sided hemicolectomy with resection of the transversal colon and forming of an ileostoma. The first pathohistological diagnosis was pseudomembranous colitis. Because the patient’s condition was deteriorating, a revision of the pathohistological diagnosis was done. After careful revision and extensive sampling, a signet ring cell carcinoma arising in the appendix with infiltration of the ileocecal region was found. Immunohistochemically, tumor cells were positive for CDX-2 CK7, CK20, CK19, and carcinoembryonic antigen and negative for chromogranin A. Sixteen isolated lymph nodes were negative. Although the patient had a disease that was localized to the appendix and ileocecal region with no apparent distal metastasis, his clinical condition was worsening rapidly and he died after 2 months. This case shows the aggressive biological behavior of the appendix signet ring cell carcinoma. Scrupulous histopathological examination of the appendix is an obligatory procedure. Elimination of the signet ring cell carcinoma from other carcinoma subtypes is of special importance as it has an exceptionally poor prognosis and is generally diagnosed in its advanced stages.


2021 ◽  
Vol 12 (7) ◽  
pp. 1122-1125
Author(s):  
Alberto Testori ◽  
Gianluca Perroni ◽  
Camilla De Carlo ◽  
Alessandro Crepaldi ◽  
Marco Alloisio ◽  
...  

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