These days medical students are just flooded with a huge amount of information –different description of diseases, fresher and fresher publications – available online. It is really difficult to pick the clinically relevant data, especially when you do not have those years of practice behind your back. In our blog series, You will find short and straightforward lists of clinical signs and symptoms most typical and pathognomonic in certain diseases.
At the end of World Men’s Health Week, we discuss the most frequent solid malignancy affecting the gentlemen between the ages of 15 to 35: the testicular cancer. Testicular germ cell tumor is one of the most curable solid malignancies, even when it is metastatic! That is why you should recognize its symptoms in time and teach male patients how to perform self-examination. Break the taboos!
Why? Abnormal mass is a key symptom of many cancers. A painless lump in the testicle is the most common sign of testicular cancers; however sometimes it may appears with a dull ache or heavy feeling in the lower abdomen, perianal area or scrotum.
Why? At times the symptoms caused by the metastases warn you earlier about malignancy than the signs of the primary tumor. Here is some good news though: testicular germ cell tumors are curable even in an advanced stage, even with metastases! The most common metastatic signs are:
Locaion of metastases
Cancer spread to the retroperitoneal lymph nodes
Lumbar back pain
Nausea, vomiting, gastrointestinal hemorrhage
Supraclavicular lymph node metastasis
Cough, dyspnea, chest pain
Nervous system involvement
Headaches or confusion
Why? Half of the malignant testicular cancers contain more than one single cell type. Tumors with trophoblastic cells can produce hCG that leads to the growth of the breast in males as well. This symptom appears approximately in 5% of patients with testicular germ cell tumor.
Why? Does this list of symptoms remind you about a disease? They should: the answer is hyperthyroidism. Patients who have hCG overproduction can present the symptoms of hyperthyroidism as the TSH and the hCG have a common α-subunit and a β-subunit with a strong homology.
Why? Testicular germ cell tumors with mixed cell types can produce androgens, too. The overproduction of these hormones maynot have substantial effects on male adults but they result in precocious puberty in young boys.
Why? Paraneoplastic limbic encephalitis is a rare condition in testicular cancer. There is an antigen called Ma2 which is exclusively expressed in the neuronal nucleoli of normal brain tissue and the patient’s testicular tumor. The presence of anti-Ma2 antibodies prompts cancer screening.
Why? It is always difficult to quantify risk factors and choose the clinically relevant ones. However, there is one condition which shows a significant correlation with testicular germ cell tumors: cryptorchidism. Men with the history of an undescended testicleare at increased risk for testicular cancer in both testes.
After learning the basics, test your knowledge in practice by solving cases in InSimu Patient app! You can download it for iOS or Android.