A New Hampshire medical malpractice jury returned its verdict in favor of a Vermont man who alleged in his New Hampshire medical malpractice lawsuit that the defendant, John Seigne, M.D., was medically negligent in treating him for testicular cancer.
The man began receiving treatment for urologic and oncologic concerns at Dartmouth-Hitchcock Medical Center beginning in May 2020. As part of the man’s testicular cancer treatment, Dr. Seigne surgically removed the man’s left testicle on May 29, 2020, after which Dr. Seigne recommended surveillance instead of radiation therapy or chemotherapy.
According to the man’s New Hampshire medical malpractice lawsuit: “Throughout 2021, (the patient) complained to Dr. Seigne and other providers at Dartmouth Health about increasing erectile dysfunction, pain, and difficulty with urination. Despite the repeated and increasing complaints, no provider at Dartmouth Health properly investigated to determine if the complaints were related to a return or metastasis of the testicular cancer.” The cancer malpractice lawsuit alleged that medical providers at Dartmouth Health did not identify a metastatic tumor in his pelvis which appeared in imaging.
Dr. Seigne reportedly denied seeing the man between May 4, 2021 and January 5, 2022.
The man’s New Hampshire medical malpractice complaint reportedly alleged: “Neither Dr. Seigne, nor other providers at Dartmouth Health informed the radiologists who examined the images in January and April 2021 of (the patient’s) condition or ongoing complaints. On retrospective review, providers employed by Dartmouth Health and/or other Defendants, acknowledged that the images taken and interpreted as normal in January and April 2021 reveal the presence of a metastatic tumor in (the patient’s) pelvis. … The treatment provided to (the plaintiff) by Dartmouth Health and the other Defendants did not meet the standard of care ordinarily exercised by reasonably skillful, careful and prudent health care professionals under the same or similar circumstances.” As a result, the lawsuit alleged that the man suffered severe injury, resulting in medical expenses, pain, suffering, the loss of enjoyment of life, lost income, and other damages.
Testicular Cancer
Cancer of the testes is the most common cancer in men 20 to 35 years old. Risk factors include a family or personal history of testis cancer as well as an undescended testis.
According to the National Cancer Institute’s Surveillance, Epidemiology, and End Results (SEER) Program, an estimated 9,720 men were diagnosed with testicular cancer in the United States in 2025, and about 600 died from the disease. The five-year relative survival rate is 94.9%.
If you or a loved one may have been harmed as a result of cancer malpractice in New Hampshire or in another U.S. state, you should promptly find a New Hampshire medical malpractice lawyer, or a medical malpractice lawyer in your state, who may investigate your cancer malpractice claim for you and represent you or your loved one in a cancer medical malpractice case, if appropriate.
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