{"id":926,"date":"2026-10-14T02:34:45","date_gmt":"2026-10-14T02:34:45","guid":{"rendered":"https:\/\/kdoctorinterview.com\/?p=926"},"modified":"2026-10-14T02:34:47","modified_gmt":"2026-10-14T02:34:47","slug":"%ea%b2%80%eb%b2%84%ec%84%af%ec%9d%b4-%ea%b0%91%ec%9e%90%ea%b8%b0-%eb%8a%98%ec%97%88%eb%8b%a4%eb%a9%b4-%ec%95%94-%ec%8b%a0%ed%98%b8%ec%9d%bc%ea%b9%8c-%eb%a0%88%ec%a0%9c%eb%a5%b4-%ed%8a%b8%eb%a0%90","status":"publish","type":"post","link":"https:\/\/kdoctorinterview.com\/en\/%ea%b2%80%eb%b2%84%ec%84%af%ec%9d%b4-%ea%b0%91%ec%9e%90%ea%b8%b0-%eb%8a%98%ec%97%88%eb%8b%a4%eb%a9%b4-%ec%95%94-%ec%8b%a0%ed%98%b8%ec%9d%bc%ea%b9%8c-%eb%a0%88%ec%a0%9c%eb%a5%b4-%ed%8a%b8%eb%a0%90\/","title":{"rendered":"Could Suddenly Developing More Age Spots Be a Sign of Cancer? Causes and Symptoms of the Leser-Tr\u00e9lat Syndrome"},"content":{"rendered":"
\"\"<\/figure>\n\n\n\n

<\/p>\n\n\n\n

There are some skin changes that can appear suddenly, even in younger people. <\/p>\n\n\n\n

In particular, if skin lesions that usually occur in older adults suddenly appear in large numbers over a short period of time, <\/p>\n\n\n\n

it is important to find out the cause. <\/p>\n\n\n\n

This is because certain skin changes can, in rare cases, be a sign associated with an underlying malignant tumor in the body.<\/mark><\/strong><\/p>\n\n\n\n

Our bodies can develop various types of skin moles and pigmented lesions. <\/p>\n\n\n\n

Some of these may be related to skin cancer, <\/p>\n\n\n\n

Certain types of skin lesions can sometimes appear as a sign of an internal cancer. <\/p>\n\n\n\n

<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n
\n

One such phenomenon is The Leser-Tr\u00e9lat Sign (Leser-Tr\u00e9lat Syndrome)<\/mark>is.<\/strong><\/p>\n<\/blockquote>\n\n\n\n

To understand the Leser-Tr\u00e9lat sign, it is first necessary to understand the difference between age spots and seborrheic keratoses, which commonly appear with aging.<\/p>\n\n\n\n

Seborrheic keratosis is medically classified as a type of benign skin tumor. <\/p>\n\n\n\n

It commonly occurs with aging, <\/p>\n\n\n\n

The surface of these lesions is often uneven and rough, and they commonly appear brown or black in color. <\/p>\n\n\n\n

The lesions have well-defined borders and a raised surface, so they are sometimes mistaken for warts. However, they are a different type of skin lesion from warts.<\/p>\n\n\n\n

In contrast, solar lentigines are skin lesions that are generally flat and have relatively uniform pigmentation. <\/p>\n\n\n\n

Unlike solar lentigines, seborrheic keratoses may have a thick, rough surface and an irregular appearance. <\/p>\n\n\n\n

These skin lesions may also be found on the face, scalp, and other areas of the body.<\/p>\n\n\n\n

Because seborrheic keratosis is found much more commonly in older adults than in younger people, <\/p>\n\n\n\n

It is often considered one of the skin changes associated with aging. Although ultraviolet (UV) exposure and genetic factors may be related, the exact cause has not been fully established. <\/p>\n\n\n\n

The exact cause of its development has not yet been fully understood.<\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n
\n

What if multiple seborrheic keratoses appear suddenly over a short period of time?<\/mark><\/strong><\/p>\n<\/blockquote>\n\n\n\n

A rapid increase in seborrheic keratoses over a short period of time, or the sudden appearance of multiple lesions at the same time, is <\/p>\n\n\n\n

This phenomenon is called the Leser-Tr\u00e9lat sign. <\/p>\n\n\n\n

This sign can appear on various parts of the body, including the upper body such as the back, and may sometimes be accompanied by itching.<\/p>\n\n\n\n

The Leser-Tr\u00e9lat sign is a phenomenon that was first described in the late 19th century. <\/p>\n\n\n\n

Since then, an association between the sudden increase of seborrheic keratoses and internal malignant tumors has been reported. <\/p>\n\n\n\n

In particular, cases associated with gastrointestinal cancers such as stomach cancer, colon cancer, and rectal cancer have been reported, <\/p>\n\n\n\n

An association has also been reported with other malignant tumors, including lymphoproliferative neoplasms.<\/p>\n\n\n\n

Cancer cells can release various biological substances, <\/p>\n\n\n\n

These substances can sometimes affect other tissues in the body, including the skin. <\/p>\n\n\n\n

Various physical symptoms and skin changes associated with cancer can be explained within the category of paraneoplastic syndromes. <\/p>\n\n\n\n

The Leser-Tr\u00e9lat sign has also been studied in this context.<\/p>\n\n\n\n

However, whether this sign is a highly reliable indicator that can accurately predict cancer remains a subject of debate. <\/p>\n\n\n\n

Because seborrheic keratosis itself is very common with aging, <\/p>\n\n\n\n

It should also be considered that the skin lesions and cancer may have appeared at the same time purely by coincidence.<\/p>\n\n\n\n

Therefore, a sudden increase in seborrheic keratoses does not necessarily mean that cancer is present. <\/mark><\/strong><\/p>\n\n\n\n

<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

However, if skin lesions develop in an unusually large number over a short period of time or change rapidly, <\/p>\n\n\n\n

It is advisable not to dismiss such changes lightly and to have them evaluated by a healthcare professional.<\/p>\n\n\n\n

In particular, when sudden skin changes occur, it is advisable to consult a dermatologist to evaluate the characteristics of the lesions. <\/p>\n\n\n\n

Whether additional tests are needed should be determined by considering a person's age, overall health condition, accompanying symptoms, and individual risk factors.<\/p>\n\n\n\n

Cancer screening is also important to perform according to an individual's age and risk factors.<\/p>\n\n\n\n

However, although the Leser-Tr\u00e9lat sign does not necessarily mean that cancer is present, <\/p>\n\n\n\n

However, sudden and unusual changes in the skin should not be ignored. <\/mark><\/strong><\/p>\n\n\n\n

Paying close attention to changes in your skin and seeking medical evaluation when necessary can help protect your health.<\/p>\n\n\n\n

<\/p>","protected":false},"excerpt":{"rendered":"

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