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Surgical Oncology & Minimally Invasive

Cancer Treatment Cancer Treatment

With the benefit of international training and over a decade of clinical experience, advanced surgical solutions are provided in the fields of gastrointestinal, head & neck, and thyroid cancers.

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Dr. Amirmohsen Jalaeefar

Fellowship in Surgical Oncology

Associate Professor

Tehran University of Medical Sciences
About Doctor Amirmohsen Jalaeefar

Meet Your Surgeon

Biography Education & Training Honors Research & Publications Conferences & Lectures

Dr. Amirmohsen Jalaeefar, born in 1979, was admitted to the medical program at Shahid Beheshti University of Medical Sciences in 1997. After seven years of study, he earned his Doctor of Medicine (M.D.) degree. Following the completion of his mandatory military service, he was accepted into the General Surgery residency program at Iran University of Medical Sciences in 2006, during his first attempt at the national residency entrance exam. He successfully completed the four-year residency in 2010 and ranked first nationwide in the General Surgery Board Examination that same year, receiving a Certificate of Honor from the Iranian Society of Surgeons.

Immediately thereafter, he joined the Department of General Surgery at Shahid Beheshti University of Medical Sciences as a faculty member. About a year later, he was admitted—again with top ranking—into the Surgical Oncology Fellowship Program at the Cancer Institute of Iran, affiliated with Tehran University of Medical Sciences.

The Cancer Institute of Iran, affiliated with Tehran University of Medical Sciences, is the oldest and most reputable cancer treatment center in the country. During his one-and-a-half-year fellowship in Surgical Oncology, Dr. Amirmohsen Jalaeefar became proficient in a wide range of complex surgical procedures for the treatment of cancers across various parts of the body.

Upon receiving his fellowship certificate at the end of 2012, he returned once again to Shahid Beheshti University of Medical Sciences, where he served for three years as an Assistant Professor in the Department of General Surgery at Imam Hossein Hospital, training surgical residents and treating patients. Following his transfer to Tehran University of Medical Sciences, he has, since 2015, been practicing at the Department of Surgery at the Cancer Institute, where he continues to treat patients and train both general surgery residents and surgical oncology fellows. In 2020, he was promoted to the rank of Associate Professor.

Since then, alongside his academic responsibilities as a faculty member, he has also been actively engaged in patient care through his private practice in his office and one of the first degree private hospitals in the capital, Tehran.

Driven by a strong desire to stay at the forefront of modern surgical techniques and fueled by a deep passion for learning, he has completed several advanced training programs at prestigious institutions around the world. These include a microsurgery course for head and neck tumor reconstruction at Chang Gung Memorial Hospital – Taiwan, an advanced laparoscopic surgery and specialized course in flexible endoscopy at IRCAD, with a recognized certificate from the University of Strasbourg – France, as well as a minimally invasive gastric surgery course at SNUH – South Korea.

  • Doctor of Medicine (G.P.) – Shahid Beheshti University of Medical Sciences (1997–2004)
  • General Surgery Residency – Iran University of Medical Sciences (2006–2010)
  • Surgical Oncology Fellowship – Tehran University of Medical Sciences (2011–2013)
  • Clinical Fellowship in Advanced Laparoscopy – IRCAD, Taiwan
  • Observership in Microsurgery – Chang Gung Memorial Hospital, Taiwan
  • Diploma in Laparoscopic Surgery – Strasbourg University, France
  • Minimally Invasive Gastric Surgery CourseSNUH, South Korea
  • First Rank, General Surgery National Board Exam (2010)
  • First Rank, Surgical Oncology Fellowship Entrance Exam (2011)
  • Selected as Excellent Assistant Professor, Shahid Beheshti University of Medical Sciences
Dr. Jalaeefar has contributed extensively to peer-reviewed journals, focusing on surgical oncology and cancer treatment methodologies. His research encompasses lymphatic drainage post-gastrectomy, diagnostic peritoneal lavage in advanced gastric cancer, and the impact of chemotherapy on ovarian reserve, among others.

  • Annual Iranian Society of Surgeons Conference – Panel moderator: “Management of complex pelvic trauma”
  • 3rd International GI Cancer Congress – Panel member: “New aspects in gastric cancer treatment”
  • Tehran Cancer Institute Annual Congress – Speaker: “Liver metastases in non-colorectal cancers”
  • Iranian Radiotherapy-Oncology Association Meeting – Speaker: “Anal melanoma” and “Pelvic exenteration for cervix cancer”
  • 27th Tehran Cancer Institute Congress – Panel member: “Neuroendocrine tumors – case discussion” , “Ovarian cancer – prophylactic surgery for high-risk patients”
  • 30th Tehran Cancer Institute Congress – Moderator: “Esophagus cancer surgery”
  • TUMS ONCO MIS International Congress (2021) – Scientific Secretary
  • Thyroid Cancer Management Webinar, hosted by the Iranian Association of Surgeons
  • Continuous Medical Education (CME) Conferences for general surgeons and general practitioners (specific institutions not named)
Specialty

Fields of Surgical Expertise

If you’re seeking advanced surgical care for cancer, explore the specialized areas below. From minimally invasive procedures to complex head and neck reconstructions, each field reflects a strong commitment to precision, innovation, and patient-centered outcomes.

Laparoscopy is the main approach for these surgeries Laparoscopy is the main approach for these surgeries

Gastrointestinal cancers are one of the main field of my practice in surgical oncology and we are treating many cases of GI cancer patients during a year. Surgery is one of the mainstay treatment options in treatment of GI cancers and using minimally invasive surgical techniques in treating these cases has so many benefits as mentioned below :
1. Better oncologist outcomes
2. less postoperative pain
3. Faster recovery and return to work
4. Smaller incisions and better cosmetic results
In this part you can find some details about different types of GI cancers and their treatment options.

Stomach Cancer

Stomach cancer, also known as gastric cancer, typically begins in the cells lining the stomach. It can present with vague symptoms such as indigestion, abdominal pain, or nausea.

Esophagus Cancer

Esophageal cancer affects the food pipe connecting the throat to the stomach. Symptoms often include difficulty swallowing, weight loss, and chest pain.

Colon Cancer

Colon cancer typically originates from the inner lining of the colon. Screening for colon cancer, specially using screening colonoscopy is crucial, as early stages may show no symptoms.

Rectal Cancer

For early stage superficial cancers which do not involve lymph nodes, Endoscopic resection and Upfront surgery would be options based on accurate preoperative staging.

Thyroid cancer arises in the thyroid gland located in the neck. The most common form is papillary thyroid cancer, though other types include follicular, medullary, and anaplastic.
Treatment typically involves surgical removal of the thyroid (thyroidectomy), and in some cases, removal of surrounding lymph nodes.The neck lymph node zones are divided to different anatomical locations like zone 1 to 7.

lymph node dissection for thyroid cancer generally includes removal of prelaryngeal, pretracheal and paratracheal alongside mediastinal lymph nodes (Level 6&7) which is called Central LN dissection.

In more advanced cancers that involve lateral LNs (level 2 to 5), more advanced surgical procedures like Modified Radical Neck Dissection (MRND) is a crucial part of the treatment.

Removing of all macroscopic tumors as well as LNs is the cornerstone for the effectiveness of postoperative adjuvant ablative treatments like using Radioactive Iodine for PTC and the final outcome of reducing the recurrence rate.

Thyroidectomy for cancer and LN dissection is a technically demanding procedure and a well trained surgeon with high volume of experience in this procedure will do it, preserving laryngeal nerves and parathyroids intact while removing enough LNs. This will lead to less complications in this type of surgery.

Tongue Cancer

Tongue cancer is a type of oral cavity cancer that can impact speech, swallowing, and overall quality of life.

Mandible Tumor

Tumors of the mandible, or lower jaw, may be benign or malignant. These tumors can cause pain, swelling, or difficulty in chewing.

Salivary Gland Tumors

Tumors of the salivary glands can occur in major glands like the parotid or submandibular glands.

Lip Cancer

Lip cancer is a form of oral cavity or skin cancers that primarily affects the lower lip.

Skin cancer is the most common type of cancer in the world. It begins in the skin cells and can develop anywhere on the body. While most skin cancers are highly treatable, early detection is crucial to achieving the best possible outcomes.

Basal Cell Carcinoma (BCC)

The most common form of skin cancer. It starts in the basal cells (the bottom layer of the skin's epidermis).

Melanoma

The most aggressive form of skin cancer, melanoma originates in melanocytes (the pigment-producing cells in the skin).

Squamous Cell Carcinoma (SCC)

This cancer begins in the squamous cells (flat cells that make up the surface of the skin).

Read More About Skin Cancer

Adrenal Gland Surgery

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Pancreas Surgery

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Spleen Surgery

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Patient samples

Surgery Cases

Explore a selection of surgical cases, each highlighting the precision, expertise, and compassionate care we provide to every patient. From advanced laparoscopic techniques in minimally invasive surgeries to complex oncological procedures, these cases showcase our team’s commitment to excellence and innovation in the operating room. Discover how our laparoscopic expertise and patient-centered approach lead to successful outcomes and improved quality of life for those we serve.

First example

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Second example

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Application Form

To have your medical record reviewed by me, please fill out the form below completely and carefully. We will be in touch with the relevant cases.

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Enter your personal and medical details carefully in the provided fields.
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Your information will be sent directly to the doctor for careful review.
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If your case is approved by the doctor, you will be contacted directly by phone or email
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Locations

Where to Receive Expert Care

Find the exact addresses of the hospital and private clinic where Dr. Amirmohsen Jalaeefar practices, so you know where to receive expert care.

Teaching hospital

Tehran University of Medical Sciences, Cancer Institute

Address

Intersection of Dr. Gharib Street and Keshavarz Boulevard, Tehran, Iran

Private hospital

Kasra subspecial hospital

Address

Alvand Street, Argentina Square, Tehran, Iran

Clinic

Address

No. 106, Kimia Building, Ground Floor, Atefi Gharbi Alley (Jerdan), Mandela Blvd., Nelson Mandela Street, Tehran, Iran

What You Need to Know

Empowering You Through Knowledge

Stay informed with articles on the latest advances in cancer care — from early detection to minimally invasive surgical techniques.

skin-cancer-diagnosis August 31, 2023

All About Skin Cancers

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skin-cancer-diagnosis August 31, 2023

All About Skin Cancers

Read More

Stomach Cancer

Stomach cancer, also known as gastric cancer, typically begins in the cells lining the stomach. It can present with vague symptoms such as indigestion, abdominal pain, or nausea. Early detection is crucial for successful treatment, and surgical intervention, including partial or total gastrectomy, remains the primary option for curative treatment. Chemotherapy and radiation may also be used alongside surgery depending on the stage. After initial diagnosis, the physician can design a treatment plan for the patient which would include a mixture of diagnostic laparoscopy for accurate staging, neoadjuvant (Pre-operative) chemotherapy to downstage the tumor or upfront surgery based on the tumor stage.
For the surgery, we will approach the tumor and perigastric and perivascular lymph nodes (Lymph node dissection).

For the tumor, the surgeon will resect the tumor with adequate and safe clear margins based on the pathology type and location of the tumor. This will include :

1.Subtotal gastrectomy
2.Proximal gastrectomy
3.Total gastrectomy

After initial resection, GI tract continuity would be reconstructed with different techniques based on patient condition and the surgeon preference.

lymph node dissection is one of the important parts of gastric cancer surgery and without implication of this procedure, it could be said that the surgical procedure is incomplete. For the lymph node dissection, the surgeon will remove perigastric lNs alongside the lymph nodes located around the main upper abdominal vasculature, including celiac,hepatic,splenic artery and portal vein. This is a technically demanding procedure and requires special surgical training. The final pathology report should include at least 15 LNs so the adequacy of the operation will be confirmed.

Esophagus Cancer

Esophageal cancer affects the food pipe connecting the throat to the stomach. Symptoms often include difficulty swallowing, weight loss, and chest pain. Surgical resection of the esophagus, combined with chemotherapy or radiation, offers the best chance for long-term survival, particularly for localized cancers. Minimally invasive techniques are increasingly used to improve recovery time and reduce complications. Two main esophagus tumor pathologies are Squamous Cell Carcinoma (SCC) and Adenocarcinoma (Ad.Ca).

SCC is very common in the northern area of IRAN, Mongolia, and some parts of China. For the early stage cancers that always are diagnosed incidentally, Endoscopic resection and esophagectomy are the main treatment options. For more advanced stages, treatment plan begins with chemoradiotherapy, serving esophagectomy for patients with residual tumors in post Ch.Rtx investigations.

Ad.Ca is more common in developed countries due to the prevalence of Barrett’s esophagus and Gasteroesophageal Reflux Disease (GERD). Early stage disease could be treated by Endoscopic resection techniques like EMR and ESD. For advanced non metastatic patients we can use Chemoradiotherapy as Preoperative therapy and perform surgery after around 6 weeks.
The surgical procedure options for treating esophageal cancer includes :

1.Total esophagectomy
2.Partial esophagectomy

These procedures can be done via different techniques including minimally invasive laparoscopic – Thoracoscopic approaches.

Colon Cancer

Colon cancer typically originates from the inner lining of the colon. Screening for colon cancer, specially using screening colonoscopy is crucial, as early stages may show no symptoms.
Surgical resection of the tumor with appropriate lymph node removal is the cornerstone of treatment. For localized colon cancer, laparoscopic or robotic-assisted surgery is often used for faster recovery and smaller incisions, allowing for a quicker return to normal life.
During surgery, the affected part of the colon will be removed with its surrounding lymph nodes that are usually located along named colonic vessels.

Rectal Cancer

Rectal cancer, like colon cancer, begins in the cells lining the rectum. For early stage superficial cancers which do not involve lymph nodes, Endoscopic resection and Upfront surgery would be options based on accurate preoperative staging. Tumor Depth and LN status are the main predictors of choosing the treatment strategy. It is determined by pelvic MRI and rectal Endosnography. For more advanced cases the patient will be referred to receive preoperative chemoradiation and the surgical procedure will be postponed after 8 to 12 weeks. Minimally invasive techniques have significantly improved the precision of rectal cancer surgeries, leading to better functional outcomes and faster recovery times.
During surgery, sufficient part of the rectum will be removed in a clean anatomic plane which is called TME and the colon will be connected (Anastomosis) to the distal remaining part of the rectum. This procedure is called Low Anterior Resection or Ultra Low Anterior Resection (LAR-ULAR).
In some cases the surgeon will use protective temporary Ileostomy to deviate the fecal stream from the anastomosis site. It will be closed after an uneventful post-operative course.

Tongue Cancer

Tongue cancer is a type of oral cavity cancer that can impact speech, swallowing, and overall quality of life. Surgical treatment generally involves removing sufficient part of the tongue to achieve adequate free margins, followed by reconstruction using local tissue, free flaps, or grafts. Early detection is key, and adjunct therapies such as radiation or chemotherapy may be used based on the cancer’s stage to reduce risk of recurrence.

The type of surgical procedure is usually opted based on the depth of the tumor (DOI) and it’s location and the neck lymph node status. In tumors which the DOI is more than 3 mm, the surgeon should remove level 1-3 neck lymph nodes, keeping in mind the great risk of occult LN involvement. In cases whose their neck LNs are involved by tumor in preoperative investigations, neck dissection for level 1-5 should be done in conjunction with primary tumor resection.

When a notable amount of the tongue is removed, we can use free flaps for reconstruction. This will help patients having better quality of swallowing and speech. Different types of free flaps are used for this purpose, like Radial fore arm free flap or Anterolateral thigh flap. The harvested flap is transferred to the patient’s mouth and the blood supply is reestablished via a microanastomosis between the flap and neck vessels.

Mandible Tumor

Tumors of the mandible, or lower jaw, may be benign or malignant. These tumors can cause pain, swelling, or difficulty in chewing. Surgical resection of the tumor, often followed by reconstruction of the mandible using grafts or other techniques, is the primary treatment.
Mandibular reconstruction could be done by using reconstruction plates covered by different types of flaps or Free flap reconstruction. In the last one we use bone +/- soft tissue which is harvested from patients leg (Free fibula flap) or hip (Free iliac bone flap) and it is transferred to the mandibular defect, while blood supply will be reestablished via a micro anastomosis between flap and neck vessels.

Salivary Gland Tumors

Tumors of the salivary glands can occur in major glands like the parotid or submandibular glands. While most of these tumors are benign, some may be malignant and require surgical removal of the affected gland. In some cases, radiation therapy may also be used after surgery to ensure complete tumor removal.
The most important and critical point of surgical procedure for salivary gland tumors is preserving Facial nerve branches. These delicate nerves run between the superficial and deep part of the parotid gland and are the main promotores of facial muscles which restore face grimacing. Meticulous technique using magnification and separating the tumor from nerve branches while removing all tumural tissue with clear margins should be used to achieve the best oncologist and functional outcome.

Lip Cancer

Lip cancer is a form of oral cavity or skin cancers that primarily affects the lower lip. The treatment often involves surgical excision of the tumor and may require a lip reconstruction procedure. Early-stage lip cancers are highly treatable with surgery alone, while more advanced stages may require radiation therapy as adjuvant treatment.
Different types of flaps are used for lip reconstruction based on the size of the defect and the patient’s type of skin. The more important consideration in lip reconstruction is reestablishment of mouth opening and the patient’s ability for swallowing in conjunction with restoring lip red line (vermillion).

Basal Cell Carcinoma (BCC)

Description: The most common form of skin cancer. It starts in the basal cells (the bottom layer of the skin’s epidermis). It grows slowly and rarely spreads to other parts of the body.

Appearance: A pearly or waxy bump, often with blood vessels visible on its surface.

Treatment: Often treated with surgical excision, Mohs surgery, or topical medications for smaller lesions.

Melanoma

Description: The most aggressive form of skin cancer, melanoma originates in melanocytes (the pigment-producing cells in the skin). It can spread rapidly to other parts of the body, making early detection and treatment crucial.

Appearance: Often appears as a new mole or changes to an existing mole. The mole may be asymmetrical, with irregular borders and uneven colors.

Treatment: Primarily treated with surgery (wide excision) if detected early. For advanced melanoma, treatments may include immunotherapy, targeted therapy, radiation, or chemotherapy.

Squamous Cell Carcinoma (SCC)

Description: This cancer begins in the squamous cells (flat cells that make up the surface of the skin). It is the second most common type and can sometimes spread to lymph nodes or other organs.

Appearance: A pearly or waxy bump, often with blood vessels visible on its surface.

Treatment: Often treated with surgical excision, Mohs surgery, or topical medications for smaller lesions.