# A Case Presentation of a Rare Pelvic Interdigitating Dendritic Cell Sarcoma

## TL;DR

This paper presents a rare case of pelvic interdigitating dendritic cell sarcoma in a 34-year-old woman, highlighting the challenges in diagnosing this uncommon cancer.

## Contribution

The novelty lies in reporting a rare case of IDCS with incidental presentation, contributing to the limited clinical literature on this sarcoma subtype.

## Key findings

- A 34-year-old female was found to have a pelvic mass confirmed as interdigitating dendritic cell sarcoma via biopsy.
- The case highlights the difficulty in diagnosing IDCS due to its rarity and nonspecific symptoms.

## Abstract

Sarcoma is a rare type of cancer that arises from connective tissue. Interdigitating dendritic cell sarcoma (IDCS) is a rare neoplasm of dendritic cell origin. IDCS arises from interdigitating dendritic cells found in the T-cell regions of secondary lymphoid tissues. Due to the rare nature of IDCS diagnosis, management can be difficult. Often, the diagnosis is delayed due to a lack of symptoms and signs. Here, we describe a case of a 34-year-old female patient who presented with an incidental finding of a left sidewall pelvic mass later to be confirmed on biopsy as an IDCS.