No abstract

Cystic hygroma (CH) in adults is a rare condition. Most CH cases are diagnosed at birth or during the first two years of life. Head and neck are the most common sites. There is scanty information about the natural history and follow-up of adult patients with axillary and breast CH. Hence, we present this case to shed some light on the natural history, complications, and a new suggested modality of treatment to deal with the complications. Case Presentation: We report a case of a 39-year-old female who presented after ten years of excision of the right axillary CH with massive breast edema and recurrence of cysts in the ipsilateral breast and axilla. The insertion treated the edema of a breast-peritoneal shunt. Discussion: The procedure was performed by inserting a normal V-P shunt catheter without a reservoir through a small incision in the inframammary fold toward the breast and another tiny incision at 10 of the clock in the right breast for fixation in the breast parenchyma. A catheter was inserted through a small incision on the right lumbar spine without intraperitoneal fixation after the catheter was inserted subcutaneously. Conclusion: This case report shows that adult CH can reoccur. To our knowledge, this is the second case of CH concomitantly involving the breast and axilla. The shunt of the edematous fluid to the peritoneal cavity can give hope for intractable breast edema treatment.

Solitary fibrous tumors (SFTs) are rare fibroblastic/myofibroblastic proliferations that occur in a wide range of anatomical sites. These tumors have nonspecific clinical presentations often with unpredictable biological behavior. SFTs can be slow growing low-risk tumors or rapidly growing high-risk tumors. They show a wide variety of histological features and typically are characterized by NAB2-STAT6 fusion. SFTs of the ischiorectal fossa are rare, with few studies reported in the literature to date. Here, we report a 90-year-old male who had a road traffic accident in October 2018. A pelvic computed tomography (CT) revealed a mass measuring 3.5 × 2.5 cm in the right ischiorectal fossa. Histopathology of the CT-guided biopsies confirmed the diagnosis of low-grade SFT. No surgical intervention was needed since the patient was asymptomatic. In January 2022, a follow-up CT showed a gradual increase in tumor size (5 × 3.5 × 3 cm), but not infiltrating the surrounding structures. However, the patient complained of constipation, which warranted a surgical excision of the mass. Subsequently, immunohistological examination reconfirmed the diagnosis of low-risk SFT. Here, we discussed the clinicopathological features of the case and the relevant literature about pelvic SFTs. In conclusion, SFTs should be considered in the differential diagnosis of any ischiorectal mass. It is recommended that tissue samples be obtained, and immunohistology should be performed.