Cardiovascular

Unexpected Peritoneal Loose Body Discovered During Laparoscopic Varicocelectomy: A Case Report.

TL;DR

A peritoneal loose body (PLB) consisting of necrotic adipose tissue with dystrophic calcification was unexpectedly discovered during laparoscopic varicocelectomy in a healthy 22-year-old man with no prior abdominal or pelvic surgical history.

Key Findings

A peritoneal loose body was incidentally discovered in the left paracolic gutter during laparoscopic varicocelectomy in a patient with no history of abdominal or pelvic surgery.

  • The patient was a healthy 22-year-old Jordanian man undergoing bilateral laparoscopic varicocelectomy for symptomatic varicoceles.
  • The PLB was identified as a smooth, freely mobile ovoid structure within the left paracolic gutter.
  • The patient had no prior abdominal or pelvic surgical history, making this an unexpected finding.
  • The structure was retrieved laparoscopically during the procedure.

Dense sigmoid adhesions over the left internal inguinal ring required adhesiolysis to expose the spermatic vessels during the varicocelectomy procedure.

  • Adhesiolysis was performed to expose the spermatic vessels in the left paracolic gutter region.
  • The adhesions were described as 'dense sigmoid adhesions' overlying the left internal inguinal ring.
  • The presence of these adhesions created intraoperative complexity beyond the expected scope of the elective procedure.

Histopathological examination confirmed the retrieved structure was a peritoneal loose body composed of necrotic adipose tissue with dystrophic calcification.

  • The histopathological findings demonstrated 'necrotic adipose tissue with dystrophic calcification.'
  • These findings are consistent with the known pathological composition of peritoneal loose bodies.
  • Histopathological confirmation was used to resolve the intraoperative diagnostic uncertainty about the nature of the structure.

Intraoperative gross characteristics of the peritoneal loose body included a smooth surface, complete mobility, lack of visible vascular attachment, and firm, rubbery consistency.

  • The lesion was described as 'smooth, freely mobile' and ovoid in shape.
  • It had a 'lack of visible vascular attachment,' distinguishing it intraoperatively from vascularized lesions.
  • Its 'firm, rubbery consistency' was noted as supportive of a benign PLB diagnosis intraoperatively.
  • These gross features collectively supported intraoperative consideration of a benign entity.

The patient recovered uneventfully and reported resolution of preoperative symptoms at the 3-week postoperative follow-up.

  • The postoperative course was described as 'uneventful.'
  • Resolution of preoperative varicocele-related symptoms was reported at the 3-week follow-up visit.
  • No complications related to either the varicocelectomy or the PLB retrieval were reported.

Peritoneal loose bodies are rare, benign intraperitoneal entities that are usually discovered incidentally during abdominal surgery or imaging, and their occurrence during urologic laparoscopy appears infrequently reported.

  • PLBs are characterized as 'rare, benign intraperitoneal entities' in the literature.
  • Their discovery during urologic laparoscopy is described as 'infrequently reported.'
  • Unexpected encounters with PLBs 'may create intraoperative diagnostic uncertainty.'
  • The authors note that 'broader management implications cannot be established from a single case.'

The authors conclude that histopathological confirmation remains important when the diagnosis of a peritoneal loose body is uncertain.

  • Despite the characteristic gross appearance of the PLB, the authors emphasize that 'histopathological confirmation remains important when the diagnosis is uncertain.'
  • This recommendation applies to freely mobile, avascular intraperitoneal bodies encountered unexpectedly during laparoscopy.
  • The authors caution that management implications from this single case report are limited.

What This Means

This case report describes a rare and unexpected surgical finding in a 22-year-old man who underwent a routine laparoscopic procedure to treat varicoceles (enlarged veins in the scrotum). During the operation, surgeons found an unusual smooth, mobile, rubbery mass floating freely inside the abdominal cavity near the left side of the colon. The mass had no blood supply and was not attached to any surrounding tissue. It was removed and sent to a pathology laboratory for analysis, which revealed it was a 'peritoneal loose body' — essentially a calcified ball of dead fat tissue. The patient had no history of any prior abdominal surgery, making this an especially unexpected discovery. Peritoneal loose bodies are known to be rare and benign (non-cancerous), but they are typically found in patients who have had previous abdominal surgery or trauma. Finding one in a young, otherwise healthy man with no surgical history during a limited urologic procedure is unusual. This research suggests that such structures can form and be encountered in any patient, even without prior surgical risk factors, and that surgeons performing laparoscopic procedures in the abdomen and pelvis should be aware of them. The authors note that the physical characteristics observed during surgery — smooth surface, free mobility, no visible blood vessels, and firm texture — were helpful clues pointing toward a benign diagnosis. The practical implication highlighted in this report is that when surgeons unexpectedly encounter a freely floating, avascular mass inside the abdomen during laparoscopy, a peritoneal loose body should be considered as a possible diagnosis. However, the authors stress that laboratory confirmation through pathological examination remains important to rule out other, potentially more serious conditions. Because this is a single case report, no broad treatment guidelines can be drawn from it alone.

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Citation

Alsmadi J, Al-Bdour A, Abuo'waida A. (2026). Unexpected Peritoneal Loose Body Discovered During Laparoscopic Varicocelectomy: A Case Report.. The American journal of case reports. https://doi.org/10.12659/AJCR.954629