DIPTI P. SAJED, MD

BOSTON, MA

Research Active
Pathology - Anatomic Pathology & Clinical Pathology NPI registered 13+ years 23 publications 2016 – 2026 NPI: 1316385032

Practice Location

MASSACHUSETTS GENERAL HOSPITAL
BOSTON, MA 02114

Phone: (617) 726-2967

What does DIPTI SAJED research?

Dipti P Sajed studies rare tumors found in the salivary glands and nasal cavity. One of her main focuses is on a type of tumor called pleomorphic adenoma, which can sometimes show unusual cell features. However, her research indicates that many of these lesions, even if atypical, do not lead to cancer recurrence or spread, pointing to the need for simplified terminology that reflects their generally benign nature. Additionally, she investigates nasal cavity growths, such as angiomyolipomatous lesions, which consist of blood vessels, smooth muscle, and fat tissue. Her work helps to ensure better classification and understanding of these lesions, as well as their treatment options.

Key findings

  • In her 2025 study on pleomorphic adenomas, it was found that many tumors with atypical cell features do not lead to cancer recurrence, suggesting a 97% rate of not progressing when contained.
  • In her 2024 research on sinonasal angioleiomyomas, most lesions occurred in older men and typically resulted in nasal blockage; 90% did not recur after surgical removal.
  • Sajed's work advocates for a unified nomenclature for benign and indolent lesions, potentially reducing unnecessary patient anxiety regarding treatment.

Frequently asked questions

Does Dr. Sajed study salivary gland tumors?
Yes, she extensively studies salivary gland tumors, particularly pleomorphic adenomas and their associated lesions.
What types of nasal cavity conditions has Dr. Sajed researched?
She has researched angiomyolipomatous lesions in the nasal cavity, focusing on their characteristics and treatment outcomes.
Are Dr. Sajed's findings relevant for patients with nasal growths?
Yes, her findings provide valuable insights into the nature and management of nasal growths, especially for older men who are commonly affected.

Publications in plain English

Respiratory Epithelial Adenomatoid Hamartoma Characteristics of Extra-Olfactory Cleft Disease.

2026

The Laryngoscope

Fischer JL, Oh E, Sajed DP, Beswick DM, Lee JT +2 more

Plain English
This study examined a rare condition called respiratory epithelial adenomatoid hamartoma (REAH), which can occur in patients with chronic sinus issues. Over 15 years, researchers looked at 88 patients and found that those with REAH affecting the olfactory cleft were older and had more allergies and asthma than those with REAH in other areas of the nose; specifically, they were about 10 years older on average (63.2 vs. 52.8 years). Understanding these differences is important because it can help identify patients who may need more tailored treatment for their nasal symptoms. Who this helps: This research benefits patients with nasal conditions, particularly those experiencing chronic sinus issues.

PubMed

Genetic Testing Referral Rates for Pheochromocytoma and Paraganglioma in an Academic Tertiary Centre.

2025

Clinical endocrinology

Ruhle B, Kim NE, Ngo S, Hughes EG, Sajed DP +4 more

Plain English
This study looked at patients with pheochromocytoma and paraganglioma, tumors that can affect hormone levels. Out of 224 patients, 75% were referred for genetic counseling, but only 49% actually completed the testing. The research highlighted that younger patients and those with certain insurance types were more likely to get tested, revealing that efforts are needed to improve access and education about genetic testing for these tumors. Who this helps: This benefits patients with pheochromocytoma and paraganglioma and their families as well as healthcare providers.

PubMed

ELOC-Mutated Renal Cell Carcinoma is a Rare Indolent Tumor With Distinctive Genomic Characteristics.

2025

Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc

Wang JJ, Huang RR, Cone BD, Kang SL, Setoodeh R +5 more

Plain English
This study focused on a rare type of kidney cancer called ELOC-mutated renal cell carcinoma (ELOC-RCC). Researchers found that among over 1,200 kidney cancer cases, 13 were identified as ELOC-RCC, which showed a unique genetic makeup and generally better survival rates compared to a common type of kidney cancer, VHL-null clear cell RCC, with a 68% lower chance of death and an 84% lower chance of cancer progression. Understanding these differences is important because it helps doctors diagnose and treat patients more effectively. Who this helps: This helps patients with ELOC-RCC and their doctors.

PubMed

Dynamic Optical Contrast Imaging for the Pathological Diagnosis of Thyroid Cancer.

2025

Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery

Han EJ, Alhiyari Y, Evans LK, Cronkite DA, Laklouk IA +3 more

Plain English
This study looked at a new imaging technique called Dynamic Optical Contrast Imaging (DOCI) to help diagnose thyroid cancer. Researchers examined 74 samples of thyroid tissue and found that DOCI could effectively differentiate between types of thyroid cancer (papillary, follicular, and anaplastic) and normal tissue. The technique showed a 94.6% accuracy in identifying cancer versus non-cancer tissues, which could lead to fewer unclear biopsy results and more precise treatments for patients. Who this helps: This benefits patients with thyroid cancer by providing clearer diagnoses and reducing unnecessary treatments.

PubMed

Pleomorphic Adenoma with Epithelial Atypia, Apocrine Metaplasia, and/or In situ/Intracapsular Salivary Duct Carcinoma Are Indolent Lesions with Good Prognosis: A Proposal for Unified Nomenclature and Clinical Observation.

2025

Head and neck pathology

Cole GG, Levin M, Ferber D, Roark SC, Sadow PM +8 more

Plain English
Researchers studied different types of tumors found in the salivary glands, specifically looking at certain benign and early-stage cancerous lesions linked to a condition called pleomorphic adenoma. They found that many of these lesions, even with some unusual cell features, do not lead to recurrence or spread of cancer if they remain contained within the tumor. This is important because it suggests that some terms used to describe these lesions might cause unnecessary worry and treatment, and simpler names that reflect their generally harmless nature could be more appropriate.

PubMed

Extent of Surgery for Medullary Thyroid Cancer and Prevalence of Occult Contralateral Foci.

2024

JAMA otolaryngology-- head & neck surgery

Mao YV, Hughes EG, Steinmetz D, Troob S, Kim J +8 more

Plain English
This study looked at how much surgery is needed for patients with a type of thyroid cancer called medullary thyroid cancer (MTC). Researchers found that 26% of patients had cancer spread to the other side of the thyroid that wasn't detected before surgery, and only 5% had cancer that remained hidden. It highlights that many patients with unique genetic factors might not need extensive surgery if their pre-surgery scans show no issues on the other side. Who this helps: This helps patients with medullary thyroid cancer and their doctors in deciding on the best approach to surgery.

PubMed

A 22-year single institution review of 119 cases of salivary duct carcinoma.

2024

Laryngoscope investigative otolaryngology

Han EJ, Mukdad LA, Alhiyari Y, Nakhla MN, Sajed DP +1 more

Plain English
This study looked at 119 cases of salivary duct carcinoma (SDC), a rare and aggressive type of cancer affecting the salivary glands, over a period of 22 years. The findings showed that the overall survival rate for patients after five years was 62.4%, and those specifically living without the disease for the same period was 69%. Factors like having cancer spread to lymph nodes or distant areas were linked to worse survival rates. Who this helps: This helps patients diagnosed with salivary duct carcinoma and their doctors in understanding the disease and its outcomes.

PubMed

Seven years of Non-invasive Follicular Thyroid Neoplasm with Papillary-like Nuclear Features (NIFTP): Rate of Acceptance and Variation of Diagnostic Approaches Across Different Continents.

2024

The Journal of clinical endocrinology and metabolism

Williams MD, Liu Z, Rossi ED, Agarwal S, Ryška A +29 more

Plain English
This study looked at how pathologists worldwide have started using a new diagnosis called Noninvasive Follicular Thyroid Neoplasm with Papillary-like Nuclear Features (NIFTP) instead of a previous thyroid cancer diagnosis. Researchers found that 94% of pathologists accepted NIFTP, but those in North America diagnosed it much more frequently than their counterparts in Europe and Asia/Oceania. This variation may impact patient treatment decisions and overall thyroid cancer statistics across different regions. Who this helps: This helps patients with thyroid conditions by ensuring they receive more accurate diagnoses and appropriate treatment.

PubMed

NAPRT Silencing in FH-Deficient Renal Cell Carcinoma Confers Therapeutic Vulnerabilities via NAD+ Depletion.

2024

Molecular cancer research : MCR

Noronha KJ, Lucas KN, Paradkar S, Edmonds J, Friedman S +12 more

Plain English
This study looked at a type of kidney cancer known as hereditary leiomyomatosis and renal cell carcinoma (HLRCC), which is caused by mutations that affect a specific enzyme called fumarate hydratase (FH). The researchers found that when FH is inactive, it leads to changes in the cancer cells that make them reliant on another enzyme, NAPRT, which is often silenced in these cancers. This silencing makes the cancer cells particularly vulnerable to certain treatments, including drugs that inhibit NAPRT and PARP inhibitors, potentially offering new ways to target this aggressive type of cancer. Who this helps: This helps patients with HLRCC and aggressive renal cell carcinoma.

PubMed

Angiomyolipomatous Lesions of the Nasal Cavity (Sinonasal Angioleiomyoma with Adipocytic Differentiation): A Multi-Institutional Immunohistochemical and Molecular Study.

2024

Research square

Jones VM, Thompson LDR, Pettus JR, Green DC, Lefferts JA +8 more

Plain English
Researchers looked into rare growths in the nasal cavity that have features of blood vessels, smooth muscle, and fat cells. They found that most of these lesions occurred in older men and often caused nasal blockage, but they generally didn't come back after treatment. This study is important because it clarifies how to classify these unusual growths, which can help doctors better understand and manage them.

PubMed

Angiomyolipomatous Lesions of the Nasal Cavity (Sinonasal Angioleiomyoma with Adipocytic Differentiation): A Multi-Institutional Immunohistochemical and Molecular Study.

2024

Head and neck pathology

Jones VM, Thompson LDR, Pettus JR, Green DC, Lefferts JA +8 more

Plain English
Researchers studied rare growths in the nasal cavity that contain blood vessels, smooth muscle, and fat tissue. They found that these growths often occur in older men and typically cause blockage or other symptoms, with most not recurring after removal. This is important because understanding the nature of these growths can help doctors accurately identify and treat similar conditions in the future.

PubMed

Microsecretory Adenocarcinoma of Salivary Glands.

2023

Advances in anatomic pathology

Bishop JA, Sajed DP

Plain English
Researchers studied a new type of cancer in the salivary glands called microsecretory adenocarcinoma, which has distinct features and is mostly found in the mouth. They found that most of these tumors are low grade and grow slowly, with a specific genetic change (MEF2C::SS18) that can be detected with advanced tests. This discovery helps improve the way doctors diagnose salivary gland tumors and ensures that patients receive the right treatment. Who this helps: This benefits patients with salivary gland tumors and doctors who diagnose and treat them.

PubMed

Transoral Robotic Surgery for a Parapharyngeal Space Tumor.

2023

JAMA otolaryngology-- head & neck surgery

Miller JE, Sajed DP, Mendelsohn AH

PubMed

Prognostic Value of Preoperative Molecular Testing and Implications for Initial Surgical Management in Thyroid Nodules Harboring Suspected (Bethesda V) or Known (Bethesda VI) Papillary Thyroid Cancer.

2023

JAMA otolaryngology-- head & neck surgery

Schumm MA, Shu ML, Hughes EG, Nikiforov YE, Nikiforova MN +7 more

Plain English
This study looked at how molecular testing can help doctors predict outcomes for patients with thyroid nodules that are either suspected of being cancerous or confirmed to be cancerous. Researchers analyzed data from 105 patients and found that 95% had genetic changes: 6% were low risk (none had recurrence), 88% were intermediate risk (7% had local recurrence), and 6% were high risk (67% had recurrence and metastasis), indicating that those with high-risk genetic profiles faced more serious health issues after surgery. Knowing the genetic risk beforehand may allow for less aggressive surgery and better follow-up care. Who this helps: This information benefits patients with thyroid nodules and their doctors.

PubMed

PathAL: An Active Learning Framework for Histopathology Image Analysis.

2022

IEEE transactions on medical imaging

Li W, Li J, Wang Z, Polson J, Sisk AE +3 more

Plain English
This study examined a new approach, called PathAL, to improve how images of cancer samples are analyzed using deep learning technology. The researchers found that by using PathAL, they could achieve similar results in analyzing prostate cancer images while needing 40% fewer expert annotations than traditional methods. This is important because it makes the process of training models faster and less expensive, ultimately improving efficiency in diagnosing cancer. Who this helps: This helps doctors and medical professionals who analyze cancer samples by reducing the workload and resources needed for training analysis models.

PubMed

A xenograft study of human adipose stromal cell-based vocal fold mucosal replacement in rabbits.

2022

Laryngoscope investigative otolaryngology

Tran EK, Alhiyari Y, Juarez K, Gowda BS, Schrader F +2 more

Plain English
This study looked at different ways to repair vocal folds in rabbits after they were damaged. Researchers tested a new method using human fat cells in a supportive material, called COVR, and found that it worked better than other methods since it led to thicker, healthier vocal fold tissue with less scarring. Specifically, rabbits treated with COVR had improved tissue structure compared to those that received other treatments or no repair, showing that this method might help restore vocal fold function more effectively. Who this helps: This helps patients with vocal fold injuries or scarring.

PubMed

Microsecretory Adenocarcinoma of Salivary Glands: An Expanded Series of 24 Cases.

2021

Head and neck pathology

Bishop JA, Sajed DP, Weinreb I, Dickson BC, Bilodeau EA +26 more

Plain English
This study focused on 24 cases of a type of salivary gland tumor known as microsecretory adenocarcinoma (MSA). Researchers found that all these tumors had similar characteristics, with most occurring in the oral cavity, particularly the palate and buccal mucosa, and that they often did not return or spread after being surgically removed. The study highlights MSA as a unique, low-grade salivary gland cancer that should be recognized in future classifications. Who this helps: This helps patients with salivary gland tumors by improving diagnosis and treatment options.

PubMed

Correlation of ThyroSeq Results with Surgical Histopathology in Cytologically Indeterminate Thyroid Nodules.

2020

Endocrine pathology

Chin PD, Zhu CY, Sajed DP, Fishbein GA, Yeh MW +2 more

Plain English
This study looked at how specific genetic changes found through a test called ThyroSeq can help predict the likelihood of cancer in thyroid nodules that don't have clear results. Out of 78 examined nodules, 64% were determined to be cancerous or a low-risk variant. Nodules with high-risk genetic changes had a 100% probability of cancer and were more likely to spread, while those with other mutations had a lower chance of being malignant. Who this helps: Patients with thyroid nodules and their doctors.

PubMed

Giant Cell Lesions of the Maxillofacial Skeleton Express RANKL by RNA In Situ Hybridization Regardless of Histologic Pattern.

2019

The American journal of surgical pathology

Stagner AM, Sajed DP, Nielsen GP, Ebb DH, Faquin WC +7 more

Plain English
This study looked at a type of bone tumor found in the face called central giant cell lesions (CGCLs) in younger patients. Researchers found that 88% of these tumors showed high levels of a protein called RANKL, which is linked to aggressive tumor behavior. This is important because two patients treated with a drug called denosumab, which targets RANKL, showed positive results in their treatment. Who this helps: Patients with aggressive central giant cell lesions.

PubMed

Expansion of Luminal Progenitor Cells in the Aging Mouse and Human Prostate.

2019

Cell reports

Crowell PD, Fox JJ, Hashimoto T, Diaz JA, Navarro HI +8 more

Plain English
Researchers looked at how aging affects specific cells in the prostate of mice and humans, focusing on luminal progenitor cells. They found that as the prostate ages, there is an increase in these luminal progenitor cells, which could explain why older individuals are at a higher risk for prostate growth-related diseases like benign prostatic hyperplasia (BPH). This is important because it helps us understand the changes in the prostate that may lead to more health issues as people get older. Who this helps: This benefits doctors and researchers studying prostate health and aging.

PubMed

Case 10-2018: An 84-Year-Old Man with Painless Unilateral Testicular Swelling.

2018

The New England journal of medicine

Thompson RW, Yu H, Dahl DM, Hurtado RM, Sajed DP

PubMed

Diffuse Staining for Activated NOTCH1 Correlates With NOTCH1 Mutation Status and Is Associated With Worse Outcome in Adenoid Cystic Carcinoma.

2017

The American journal of surgical pathology

Sajed DP, Faquin WC, Carey C, Severson EA, H Afrogheh A +9 more

Plain English
Researchers studied a type of cancer called adenoid cystic carcinoma (ACC) to see if a specific stain for activated NOTCH1 could help identify mutations in the NOTCH1 gene. They found that 98% of the ACC cases tested positive for this stain and that those showing a diffuse pattern were tied to worse outcomes, with 11 out of 14 of these cases having mutations in the NOTCH1 gene. This is important because it helps doctors predict which patients may have a more aggressive form of the disease and could guide treatment decisions. Who this helps: This helps patients with adenoid cystic carcinoma and their doctors.

PubMed

Intracranial dural based chondroma.

2016

Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia

Reinshagen C, Redjal N, Sajed DP, Nahed BV, Walcott BP

Plain English
This study focused on a rare type of brain tumor called an intracranial chondroma, which makes up only about 0.2% of all brain tumors. The researchers examined a patient with a chondroma located in a specific area of the brain and reviewed existing studies on the tumor’s characteristics, symptoms, and outcomes. Understanding these tumors and how to surgically remove them is important because it helps improve treatment options for patients diagnosed with this uncommon condition. Who this helps: This helps patients with intracranial chondromas and their doctors.

PubMed

Frequent Co-Authors

Michael W Yeh Masha J Livhits Jason R Pettus Adam S Fisch Yazeed Alhiyari Elena G Hughes James X Wu Nicole A Cipriani Ethan J Han Maie A St John

Physician data sourced from the NPPES NPI Registry . Publication data from PubMed . Plain-English summaries generated by AI. Not medical advice.