Quadruplet Therapy in De Novo High-Volume Mixed Neuroendocrine Prostate Cancer Using 177Lu-PSMA: A Case Report.

ABSTRACT: We present a case of de novo high-volume metastatic prostate cancer with high PSMA expression, partially PSMA-negative, using quadruplet therapy (PROMISE ver. 2 miTNM; miT4N2M1aM1b(dmi) PRIMARY score: 5, PSMA-expression score: 0-3). Because of our patient's partial PSMA negativity and after a multidisciplinary tumor board discussion, we decided to use a modified protocol involving doublet hormonal therapy along with 177Lu-PSMA and radiation therapy to address the PSMA-negative disease. The patient responded well to this treatment, but recurrence was ultimately inevitable. This case represents a typical example of mixed neuroendocrine prostate carcinoma and highlights its resistant phenotype in response to quadruplet therapy.

Evaluation of serum level of substance P and tissue distribution of NK-1 receptor in breast cancer.

Breast cancer is the second leading cause of cancer death in women with increasing incidence. Hence, finding a diagnostic factor and/or potential drug target could lead to an earlier diagnosis or a more effective therapeutic protocol. It is shown that substance P (SP) through its receptor neurokinin-1 (NK1R) could initiate tumor cell proliferation, angiogenesis, and migration. This was a case-control study on 41 women with breast cancer and 34 healthy controls. Serum level of SP was measured using an ELISA method, and immunohistochemistry staining was performed to study NK1R expression in different cell compartments. Assessing serum SP values of patients showed significantly higher levels than those of healthy individuals. However, no significant correlation was found between SP levels and tumor criteria, but between SP and HER-2. Moreover, the percentage, intensity of staining as well as tissue distribution of NK1R were significantly higher in tumor tissues as compared with controls. Increased serum SP levels and NK1R tissue distribution were observed in patients with breast cancer as compared with their controls, highlighting the involvement of SP/NK1R complex in breast cancer incidence. NK1R profound expression in tumor cell cytoplasm and its significant correlation with the majority of cancer features can be of importance to be taken into consideration as a possible potential therapeutic target in future targeted therapeutic strategies. Furthermore, cytoplasmic expression of NK1R can be suggested as a potent prognostic factor as it has shown significant correlation with TNM and tumor grade.

Granulosa-cell tumor after ovarian stimulation: A case report.

BACKGROUND: Ovarian superovulation and increased follicle-stimulating hormone concentration for infertility treatment may be the risk factors of developed granulosa-cell tumor. The aim of this report is to introduce a case of granulosa-cell tumor which was discovered after ovarian stimulation. CASE: A 31-yr-old woman with clinical presentation of massive abdominal distention was referred to the gynecology and oncology department of an academic hospital, Mashhad University of Medical Sciences in Aug 2017. She had the history of secondary infertility and was undergoing In Vitro Fertilization protocol and ovarian stimulation, but, the cycle was canceled. The patient suffered from gradual abdominal distention one month after the end of IVF procedure despite pregnancy failure. 2-3 months after management of the ovarian hyperstimulation syndrome, investigation revealed large ovarian mass and increased tumor marker inhibin. Exploratory laparotomy was performed and revealed stage III ovarian cancer. The final pathology report indicated juvenile granulosa cell tumor. So, optimal surgical staging and cytoreductive surgery without fertility preserving were perfumed. Chemotherapy was recommended due to the advanced stage of ovarian cancer. Unfortunately, she experienced metastatic diseases in pelvic and abdomen in less than six months; and currently is receiving the second and third line chemotherapy. CONCLUSION: Persistent ovarian enlargement or ascites during or after infertility treatment should be carefully considered and managed.

Management of Intravenous Leiomyomatosis of Uterus with Extension to Heart.

Leiomyoma is a benign smooth muscle tumor. Intra-venous extensions of these tumors occur due to tumor growth within uterine vein or lymphatic vessels. In rare cases, intracaval and intracardiac extension can also be seen. Clinical suspicion of this disease should become certain by use of imaging techniques. While the treatment is complete resection of the tumor, one or two-stage surgery can be planned for patient depending on tumor extension and patient's condition. In this report, a 52-year-old woman with a rare presentation of uterine leiomyoma will be discussed. While the tumor was extended toward right atrium, the patient had nonspecific symptoms. By use of two-stage surgery, separated laparotomy and cardiopulmonary bypass, the tumor was completely removed.

Polymorphous low-grade adenocarcinoma of the larynx: a rare case report.

Laryngeal polymorphous low-grade adenocarcinoma is a rare malignant tumor with a predilection for intraoral sites. Polymorphous low-grade adenocarcinoma mostly occurs during the sixth to eighth decades of life with a female predilection. Although histopathologic evaluations enabled the definite diagnosis of this tumor, it might be mistaken with adenoid cystic carcinoma or mixed cellular tumor especially in situations when specimens with small sizes are available. We present a rare case of laryngeal polymorphous low-grade adenocarcinoma in a 55-year-old female patient.

Sialolipoma of salivary glands: Two case reports and review of the literature.

Sialolipoma is a rare neoplasm of salivary glands, described as a distinct entity by Nagao et al. in 2001. Thirty-six cases of sialolipoma in minor and major salivary glands have been reported thus far in addition to the two new cases of sialolipoma arising in the major salivary glands in this study. Thirty-six cases of sialolipoma published in English language reports were analyzed considering gender, age, location, size, duration of symptoms, treatment mode, follow-up, and histologic findings. Congenital sialolipomas were considered in this study. The first case occurred in a 45-year-old female and presented as a localized swelling in right parotid area. The second case occurred in an 18-year-old female as a swelling in the left parotid region. On histopathological examination, these lesions were diagnosed as sialolipoma.

A schwannoma of the soft palate in a child: histological and immunohistochemical features and surgical method.

INTRODUCTION: Schwannoma, or neurilemmoma, is a benign neoplasm of Schwann cells that is extremely rare in the soft palate. Herein we present a case of a soft palate schwannoma presenting with an ulcerated surface and purplish colour in a 12 year-old girl. This report also introduces a successful surgical technique for coverage of the defect left by surgery.