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Interdigitating Dendritic Cell Tumor of Submandibular Lymph Node: Case Report and Literature Review
Soroush Felezi1, Anahita Nosrati1, Mohammad Eslami Jouybari2
1Department of Pathology, Imam Khomeini Hospital, Mazandaran University of Medical Sciences, Sari, Iran.
Insights
Interdigitating dendritic cell sarcoma (IDCS) is a rare cancer. This case study details a patient with multiple skin cancers and a rare IDCS diagnosis, highlighting diagnostic and treatment challenges.
Area of Science:
- Immunology
- Oncology
- Pathology
Background:
- Dendritic cells (DCs) are crucial immune cells bridging innate and adaptive immunity.
- Interdigitating dendritic cells (IDCs) are specialized DCs found in lymphoid organs.
- IDC sarcoma (IDCS) is an exceptionally rare neoplasm with a typically poor prognosis.
Observation:
- This study presents a rare case of IDCS in a 53-year-old male.
- The patient had a history of multiple skin malignancies, including basal cell carcinoma (BCC), squamous cell carcinoma (SCC), and metatypical carcinoma (MTC).
- The IDCS primarily affected lymph nodes, with potential for extra-nodal involvement.
Findings:
- IDCs are characterized by a lack of lineage surface markers and positivity for S-100 and vimentin.
- The case highlights the diagnostic complexity of IDCS, particularly in patients with a history of other cancers.
- Treatment strategies for IDCS remain debated, often involving surgery, chemotherapy, or radiotherapy based on disease extent.
Implications:
- This case underscores the importance of considering rare neoplasms like IDCS in differential diagnoses.
- Further research is needed to establish standardized treatment protocols for IDCS.
- Understanding the interplay between prior skin cancers and the development of IDCS may offer future insights.
Abstract:
Dendritic cells (DCs) are key arms of immune system, which act in antigen presenting processes, and are considered as a bridge between innate and adaptive immune responses. DCs are found in both lymphoid and non-lymphoid organs. They are called interdigitating dendritic cells (IDCs) in secondary lymphoid organs. IDCs lack lineage surface markers and are positive for S-100 and vimentin. IDC sarcoma (IDCS) is a very rare neoplasm, which mainly affects lymph nodes, though there are reports of extra-nodal involvement. IDCS is thought to have poor prognosis. Although there is no consensus on the treatment modalities, such options as radical surgery, chemotherapy, and radiotherapy are performed depending on severity and site of the lesion. In this study, we present a case of IDCS in a 53-year-old male with a history of several skin lesions and prior diagnoses of basal cell carcinoma (BCC), squamous cell carcinoma (SCC), and metatypical carcinoma (MTC).
