Osteosarcoma not letting up❗ URGENT HELP❗.

Highlights

  • Diagnosis
    Osteosarcoma (osteosarcoma)
  • Age of the Ward
    14 years
  • Location
  • Mentee
    Tomasz Michalski

Update

This story of treatment is still unfolding
Since the fundraiser began, Tomaszek has gone through a series of very difficult stages of treatment. Each one was a struggle for his health and future.

On November 28, 2025, doctors were forced to perform a below-knee amputation. On January 21, 2026, Tomaszek underwent a thoracotomy of the left lung.

In February, another difficult medical decision had to be made. The chemotherapy I had been receiving had stopped working, and a change in treatment was necessary. A new chemotherapy regimen was implemented on February 18.
Surgery on the right lung
On April 9, 2026, Tomaszek underwent a right-lung thoracotomy. The family is currently awaiting the results of the histopathological examination, which will determine the doctors’ next steps and the subsequent stages of treatment.
Next steps in treatment
Tomasz still has a long road ahead of him in terms of treatment and recovery. Once his surgery is complete, he will need to begin intensive rehabilitation to help his body regain its strength after such a traumatic ordeal. This is a lengthy process that requires significant financial resources.

The family must also prepare to purchase the prosthesis that will eventually allow Tomaszek to regain his independence and gradually return to his daily routine.

We also cannot rule out the possibility that some treatments may not be covered by insurance. Therefore, with future stages of therapy, rehabilitation, and prosthetic needs in mind, we have decided to increase the fundraising goal to ensure that Tomasz has the greatest possible financial security for his treatment in the coming months.
Words of gratitude
Tomaszek’s family would like to express their heartfelt gratitude to everyone who has shown them kindness and support during this difficult time. The kindness they are receiving means the world to them and is a beautiful testament to human compassion. April 24, 2026
We have reached our collection goal!
Together with Bartek Kubkowski, we decided to donate a portion of the funds raised through the Baltic Swim 2025 challenge to support Tomek’s treatment as he battles osteosarcoma. Thanks to this joint effort and the tremendous commitment of thousands of people who supported this extraordinary challenge, the fundraising goal was reached, and the progress bar on Tomek’s page turned green! Baltic Swim 2025 is a unique endeavor involving an attempt to swim 170 kilometers across the open Baltic Sea in 60 hours, without sleep and without stopping. Thanks to Bartek and the community that rallied behind his challenge, this project has become much more than a sporting feat—it has become a gesture of support and hope for those fighting for their health and lives. Thank you! November 2, 2025

Explore the history of

Minor fall, routine X-ray, dangerous exposure

The story of Tomaszek's battle with the disease began in May 2021. Back then, after a harmless fall from a scooter, a routine X-ray was ordered just to be safe, nothing that would have foreshadowed the drama. Both doctors and family expected at most a fracture: painful but understandable, which would heal in time.

The result of the imaging study, however, raised concern. A disturbing lesion was visible in the tibia. Specialists concluded that it was an aneurysmal cyst, which should be surgically removed. On May 11, 2021, Thomas underwent his first surgery - resection of the cyst and filling of the bone locus with cerumen. It seemed that this was the end of the difficulties, that now all that was needed was time and regeneration.

Tomasz Michalski - collection for treatment
Unfortunately, The wound was not healing properly. The cerumen did not take, and the operated area began to pus. After five months, another surgical intervention was required. The bone was cleaned and filled again, this time with bone substitute material.

The histopathological results still indicated an aneurysmal cyst of the tibia. The family breathed a sigh of relief. They believed that this time everything was really coming to an end.

Two years of relative silence

Two years of peace. Two years in which the wound had time to heal, and life slowly returned to normalcy. Tom grew, regained his dexterity and faith that the most difficult thing was behind him. However, on December 4, 2023, fate again reminded him of its unpredictability.

During an ordinary game of ball, there was a sharp, piercing pain - completely inadequate to the injury sustained. At the Hospital Emergency Department, an X-ray was taken. The area, which should have recovered a long time ago, showed a cavity and microfracture. With a splint in place and a recommendation for a three-week immobilization of the limb, Tom went home, waiting for a date to be set for another surgery. On January 5, 2024, the tibial cyst was resected with simultaneous filling with bone substitute material and stabilization with wires. The material collected during the procedure was submitted for histopathological examination.

There are distances that are not measured in kilometers, but in longing
On January 22 the result came, and with it the diagnosis - osteosarcoma, a malignant bone tumor.

From that moment on, everything was subordinated to one thing - the fight for life. Chemotherapy, designated according to the EuraMOS program, began immediately. The next stage of treatment was an operation in May 2024 to remove a fragment of the tibia bone and implant an endoprosthesis.

Return to fitness

Although the treatment was completed, a long period of convalescence began ahead of Tom. It was a time when daily life was filled with arduous exercises, pain and constant pushing of limits imposed by the weakened body. Every step became an effort, and every attempt to regain fitness a test of perseverance and determination.

For many months Tom learned everything from scratch. This required not only physical strength, but also tremendous self-denial and patience. Rehabilitation lasted almost a year and became a daily challenge, a struggle to regain what the disease tried to take away.

Relapse

In July 2025, during the course of ongoing treatment, additional tests conducted indicated the presence of a nodule in Thomas' lung. Doctors ordered a PET scan, which showed the presence of an infiltrating tumor in the soft tissues of his lower leg - exactly where the endoprosthesis had been previously implanted.On October 10,a CT scan already showed multiple lung metastases.

Tomasz Michalski - collection for treatment

Another, more aggressive chemotherapy was added to the protocol . The family's emotions, fragile after years of constant tension, were shattered to the core with the word that the leg would have to be amputated. This is a decision that cannot be accepted calmly or understood without pain. How to explain to a child that in order to save a life, a part of himself must be sacrificed? How to tell a fourteen-year-old boy that instead of dreams of cross-country riding and freedom, he is facing a struggle more difficult than all his previous ones?

A common struggle - a common longing

Since October 16 , Tomasz, along with his mother, has been staying at the Mother and Child Institute in Warsaw. The boy's dad, although he lives and works far from Szczecin, remains on standby to support the family whenever possible. His sisters, for whom the absence of their mother and brother's presence is particularly difficult, remain at home in Szczecin. On a daily basis, the girls are cared for by their grandfather. His care provides a sense of security, although he cannot fill the void left by the separation.

Promote collection

Download the prepared graphics and share them on social media. Encourage your friends to support and share. Put up a poster in your workplace, school, store. Every piece of information increases the chance of winning the Wards!

Every zloty and every share makes a huge difference. Help reach as many people as possible and increase the chances of this collection. Tell your friends, family and community - together we can do more!

Facebook
X / Twitter
WhatsApp
LinkedIn
Email
Threads

Donate 1,5% tax

Your e-PIT is the easiest way to settle your taxes. The IRS pre-fills your tax returns, and you can verify, approve or correct them.

  • Step 1 - log in to the e-Tax Office and use the e-PIT service.
  • Step 2 - in the PIT return form, click on Select an organization.
  • Step 3 - in the list of organizations, search for Cancer Fighters Foundation or enter the KRS number 0000581036.
  • Step 4 - in the field with the specific goal of 1.5%, indicate the Ward by entering the following data:
  • KRS No.
    0000581036
  • Specific objective
    Tomasz Michalski

Contributions and words of support

Elementary School No. 65
May 13, 2026
Tomek, our entire school community is standing behind you and sending you lots of strength and positive energy for a speedy recovery!
4,550.00 PLN
Iga
May 8, 2026
PLN 10.00
Maria
May 8, 2026
PLN 10.00
Nina
May 8, 2026
Let's do this!
00zł 9,00
Tom
May 8, 2026
PLN 10.00
Anonymous
May 1, 2026
20.00 00zł
Cancer Fighters
April 29, 2026
Together, we won’t lose this fight!
100,545.00 PLN
Cancer Fighters
02 / 11 / 2025
Donate and support the Baltic Swim 2025 campaign ❤️
PLN 33,000.00
Elementary School No. 65
May 13, 2026
Tomek, our entire school community is standing behind you and sending you lots of strength and positive energy for a speedy recovery!
4,550.00 PLN
Anonymous
28 / 10 / 2025
"We are fighting! We fight every day for every day. Every day is a victory. Victory!!!
PLN 2,190.00
Anonymous
December 29, 2025
PLN 1,500.00
Class 1B, Primary School No. 65
December 22, 2025
Tom, get well soon! We wish you lots of strength!
PLN 1,400.00
204,899.50 PLN(102%)
Goal achieved!
The fundraiser was supported by: 597 people
  • Purpose of the collection
    Medications, transportation to medical facilities, rehabilitation, psychological care, medical consultations

Promote the collection

Download and share materials

Donate 1.5% of your tax

The Foundation's beneficiaries

Download QR code

Moneybox at hand

Osteosarcoma not letting up❗ URGENT HELP❗.

204,899.50 PLN(102%)
Goal achieved!
The fundraiser was supported by: 597 people
  • Purpose of the collection
    Medications, transportation to medical facilities, rehabilitation, psychological care, medical consultations

Highlights

  • Diagnosis
  • Age
    14 years
  • Location
  • Collection
    Tomasz Michalski

Collection target and updates

This story of treatment is still unfolding
Since the fundraiser began, Tomaszek has gone through a series of very difficult stages of treatment. Each one was a struggle for his health and future.

On November 28, 2025, doctors were forced to perform a below-knee amputation. On January 21, 2026, Tomaszek underwent a thoracotomy of the left lung.

In February, another difficult medical decision had to be made. The chemotherapy I had been receiving had stopped working, and a change in treatment was necessary. A new chemotherapy regimen was implemented on February 18.
Surgery on the right lung
On April 9, 2026, Tomaszek underwent a right-lung thoracotomy. The family is currently awaiting the results of the histopathological examination, which will determine the doctors’ next steps and the subsequent stages of treatment.
Next steps in treatment
Tomasz still has a long road ahead of him in terms of treatment and recovery. Once his surgery is complete, he will need to begin intensive rehabilitation to help his body regain its strength after such a traumatic ordeal. This is a lengthy process that requires significant financial resources.

The family must also prepare to purchase the prosthesis that will eventually allow Tomaszek to regain his independence and gradually return to his daily routine.

We also cannot rule out the possibility that some treatments may not be covered by insurance. Therefore, with future stages of therapy, rehabilitation, and prosthetic needs in mind, we have decided to increase the fundraising goal to ensure that Tomasz has the greatest possible financial security for his treatment in the coming months.
Words of gratitude
Tomaszek’s family would like to express their heartfelt gratitude to everyone who has shown them kindness and support during this difficult time. The kindness they are receiving means the world to them and is a beautiful testament to human compassion. April 24, 2026
We have reached our collection goal!
Together with Bartek Kubkowski, we decided to donate a portion of the funds raised through the Baltic Swim 2025 challenge to support Tomek’s treatment as he battles osteosarcoma. Thanks to this joint effort and the tremendous commitment of thousands of people who supported this extraordinary challenge, the fundraising goal was reached, and the progress bar on Tomek’s page turned green! Baltic Swim 2025 is a unique endeavor involving an attempt to swim 170 kilometers across the open Baltic Sea in 60 hours, without sleep and without stopping. Thanks to Bartek and the community that rallied behind his challenge, this project has become much more than a sporting feat—it has become a gesture of support and hope for those fighting for their health and lives. Thank you! November 2, 2025

Explore the history of

Minor fall, routine X-ray, dangerous exposure

The story of Tomaszek's battle with the disease began in May 2021. Back then, after a harmless fall from a scooter, a routine X-ray was ordered just to be safe, nothing that would have foreshadowed the drama. Both doctors and family expected at most a fracture: painful but understandable, which would heal in time.

The result of the imaging study, however, raised concern. A disturbing lesion was visible in the tibia. Specialists concluded that it was an aneurysmal cyst, which should be surgically removed. On May 11, 2021, Thomas underwent his first surgery - resection of the cyst and filling of the bone locus with cerumen. It seemed that this was the end of the difficulties, that now all that was needed was time and regeneration.

Tomasz Michalski - collection for treatment
Unfortunately, The wound was not healing properly. The cerumen did not take, and the operated area began to pus. After five months, another surgical intervention was required. The bone was cleaned and filled again, this time with bone substitute material.

The histopathological results still indicated an aneurysmal cyst of the tibia. The family breathed a sigh of relief. They believed that this time everything was really coming to an end.

Two years of relative silence

Two years of peace. Two years in which the wound had time to heal, and life slowly returned to normalcy. Tom grew, regained his dexterity and faith that the most difficult thing was behind him. However, on December 4, 2023, fate again reminded him of its unpredictability.

During an ordinary game of ball, there was a sharp, piercing pain - completely inadequate to the injury sustained. At the Hospital Emergency Department, an X-ray was taken. The area, which should have recovered a long time ago, showed a cavity and microfracture. With a splint in place and a recommendation for a three-week immobilization of the limb, Tom went home, waiting for a date to be set for another surgery. On January 5, 2024, the tibial cyst was resected with simultaneous filling with bone substitute material and stabilization with wires. The material collected during the procedure was submitted for histopathological examination.

There are distances that are not measured in kilometers, but in longing
On January 22 the result came, and with it the diagnosis - osteosarcoma, a malignant bone tumor.

From that moment on, everything was subordinated to one thing - the fight for life. Chemotherapy, designated according to the EuraMOS program, began immediately. The next stage of treatment was an operation in May 2024 to remove a fragment of the tibia bone and implant an endoprosthesis.

Return to fitness

Although the treatment was completed, a long period of convalescence began ahead of Tom. It was a time when daily life was filled with arduous exercises, pain and constant pushing of limits imposed by the weakened body. Every step became an effort, and every attempt to regain fitness a test of perseverance and determination.

For many months Tom learned everything from scratch. This required not only physical strength, but also tremendous self-denial and patience. Rehabilitation lasted almost a year and became a daily challenge, a struggle to regain what the disease tried to take away.

Relapse

In July 2025, during the course of ongoing treatment, additional tests conducted indicated the presence of a nodule in Thomas' lung. Doctors ordered a PET scan, which showed the presence of an infiltrating tumor in the soft tissues of his lower leg - exactly where the endoprosthesis had been previously implanted.On October 10,a CT scan already showed multiple lung metastases.

Tomasz Michalski - collection for treatment

Another, more aggressive chemotherapy was added to the protocol . The family's emotions, fragile after years of constant tension, were shattered to the core with the word that the leg would have to be amputated. This is a decision that cannot be accepted calmly or understood without pain. How to explain to a child that in order to save a life, a part of himself must be sacrificed? How to tell a fourteen-year-old boy that instead of dreams of cross-country riding and freedom, he is facing a struggle more difficult than all his previous ones?

A common struggle - a common longing

Since October 16 , Tomasz, along with his mother, has been staying at the Mother and Child Institute in Warsaw. The boy's dad, although he lives and works far from Szczecin, remains on standby to support the family whenever possible. His sisters, for whom the absence of their mother and brother's presence is particularly difficult, remain at home in Szczecin. On a daily basis, the girls are cared for by their grandfather. His care provides a sense of security, although he cannot fill the void left by the separation.

Donate 1.5% of your tax

Your e-PIT is the easiest way to settle your taxes. The IRS pre-fills your tax returns, and you can verify, approve or correct them.

Step 1

Log in and use the Your e-PIT service

Step 2

On the PIT return form, click Select Organization

Step 3

In the list of organizations, search for Cancer Fighters Foundation or enter the KRS number 0000581036

Step 4

In the field with the specific goal of 1.5%, indicate the Ward by entering the following data:
  • KRS No.
    0000581036
  • Specific objective
    Tomasz Michalski

Promote the collection

Download the prepared graphics and share them on social media. Encourage your friends to support and share. Put up a poster in your workplace, school, store. Every piece of information increases the chance of winning the Wards!

Every zloty and every share makes a huge difference. Help reach as many people as possible and increase the chances of this collection. Tell your friends, family and community - together we can do more!

Facebook
X / Twitter
WhatsApp
LinkedIn
Email
Threads

Contributions and words of support

Elementary School No. 65
May 13, 2026
Tomek, our entire school community is standing behind you and sending you lots of strength and positive energy for a speedy recovery!
4,550.00 PLN
Iga
May 8, 2026
PLN 10.00
Maria
May 8, 2026
PLN 10.00
Nina
May 8, 2026
Let's do this!
00zł 9,00
Tom
May 8, 2026
PLN 10.00
Anonymous
May 1, 2026
20.00 00zł
Cancer Fighters
April 29, 2026
Together, we won’t lose this fight!
100,545.00 PLN
Cancer Fighters
02 / 11 / 2025
Donate and support the Baltic Swim 2025 campaign ❤️
PLN 33,000.00
Elementary School No. 65
May 13, 2026
Tomek, our entire school community is standing behind you and sending you lots of strength and positive energy for a speedy recovery!
4,550.00 PLN
Anonymous
28 / 10 / 2025
"We are fighting! We fight every day for every day. Every day is a victory. Victory!!!
PLN 2,190.00
Anonymous
December 29, 2025
PLN 1,500.00
Class 1B, Primary School No. 65
December 22, 2025
Tom, get well soon! We wish you lots of strength!
PLN 1,400.00