oncology

Importance: Ovarian cancer is the eighth most common cause of cancer and cancer death in women worldwide. In 2022, ovarian cancer was diagnosed in approximately 324 398 individuals, and 206 839 died of ovarian cancer worldwide. In 2025, it is estimated that 20 890 US women will be diagnosed with ovarian cancer and 12 730 patients will die of ovarian cancer.

Observations: Approximately 90% of ovarian cancers are epithelial malignancies, of which 70% to 80% are high-grade serous ovarian cancers. Less common epithelial subtypes include endometrioid, clear cell, low-grade serous, mucinous, and carcinosarcoma. The median age at diagnosis of ovarian cancer is 63 years. Risk factors include older age, family history of breast or ovarian cancer, endometriosis, and nulliparity. Hereditary factors are associated with 25% of cases, predominantly linked to BRCA1/2 gene variants. At diagnosis, approximately 95% of patients experience nonspecific symptoms, such as abdominal pain, bloating, and urinary urgency and frequency, and about 80% have advanced-stage disease (stage III-IV), including extrapelvic disease, ascites, and abdominal masses. Diagnostic and staging evaluation includes pelvic ultrasound; computed tomography of the chest, abdomen, and pelvis; and serum tumor markers such as carbohydrate antigen 125, carbohydrate antigen 19-9, and carcinoembryonic antigen. First-line treatment for early-stage ovarian cancer, defined as limited to the ovary or fallopian tube (stage I) or confined to the pelvis (stage II), is surgery (hysterectomy, bilateral salpingo-oophorectomy, omentectomy, and lymphadenectomy), followed by adjuvant chemotherapy (carboplatin and paclitaxel). With treatment, early-stage ovarian cancer has a 5-year overall survival of 70% to 95%. Advanced-stage ovarian cancer may be treated with primary cytoreductive surgery (removal of all visible cancer in the abdominal cavity) and adjuvant chemotherapy (carboplatin and paclitaxel) or with neoadjuvant chemotherapy followed by cytoreductive surgery and adjuvant chemotherapy. Most patients with advanced-stage ovarian cancer receive maintenance therapy with bevacizumab (a monoclonal antibody that blocks angiogenesis) and/or poly–adenosine diphosphate ribose polymerase (PARP) inhibitors. With treatment, the 5-year overall survival rate for advanced-stage ovarian cancer is 10% to 40%. However, individuals with BRCA-related gene variants have a 5-year overall survival rate of approximately 70% with PARP inhibitor treatment. Despite an initial remission rate of 80%, approximately 75% of patients with advanced-stage disease have ovarian cancer relapse within 2 years.

Conclusions and Relevance: Approximately 21 000 women are diagnosed with ovarian cancer annually in the US, and approximately 80% have advanced-stage ovarian cancer at diagnosis. First-line treatment of early-stage ovarian cancer is surgery and adjuvant platinum-based chemotherapy. Treatment of advanced-stage ovarian cancer includes cytoreductive surgery, platinum-based chemotherapy, and targeted maintenance therapies such as bevacizumab and/or PARP inhibitors.

Childhood leukemia is the most common type of cancer that affects children. Leukemia is a cancer of white blood cells that starts in bone marrow (the soft center part of bones), which produces blood cells. Once a leukemic cell develops, it multiplies quickly in the bone marrow and can prevent healthy blood cells from forming. Leukemic cells can spread to various parts of the body, including the fluid that surrounds the brain and spinal cord (cerebrospinal fluid) and other organs such as the liver and kidneys. The cause of childhood leukemia is usually unknown, but in some rare cases, inherited genetic factors may play a role in development of childhood leukemia.

A man in his 80s with advanced colon cancer and malignant ascites presented to the oncology clinic to discuss next steps. He reported weight loss (approximately 15 kg in 2 months), and his daughter commented on his limited appetite, weakness, and that he was “just bones.” Recent computed tomography staging scans had demonstrated progression of the cancer. On examination, temporal wasting and an indwelling peritoneal catheter were noted.

The oncologist discussed the lack of further meaningful chemotherapy or clinical trial options. The daughter requested that something be done for appetite and weight loss. The patient expressed food aversion. The oncologist prescribed a 2-week supply of megestrol acetate solution for anorexia and/or cachexia. The co-pay was $57. Three days later, the daughter called the oncologist and was distressed because her father was now weaker and bedbound. The patient enrolled in home hospice and died the next day. The daughter expressed guilt that she was unable to nourish her father during his last days.