Histological sampling with a 23 gauge modified Menghini needle.

Area of Science:

• Gastroenterology
• Radiology
• Pathology

Background:

• Abdominal mass lesions detected via ultrasound require accurate diagnosis.
• Conventional fine needle aspiration biopsy (FNAB) provides cytological samples.
• Histological core biopsies can offer more detailed diagnostic information.

Purpose of the Study:

• To compare the diagnostic efficacy of a modified Menghini (Surecut) needle biopsy with conventional FNAB.
• To evaluate the yield and accuracy of histological versus cytological examination for abdominal masses.
• To assess the additional diagnostic information provided by histological samples.

Main Methods:

• A 23-gauge modified Menghini (Surecut) needle biopsy was compared to FNAB.
• 30 consecutive cases of ultrasonically detected abdominal mass lesions were analyzed.
• Adequacy of material for histology and cytology was assessed.
• Diagnostic accuracy and predictive value for malignancy were calculated.

Main Results:

• Adequate histological material was obtained in 87% of cases; adequate cytological material in 97%.
• Diagnostic accuracy for malignancy was 84% for histology and 89% for cytology.
• The predictive value of malignancy was 100% for both techniques.
• Histology provided additional tumor type and origin information in malignant cases and lesion type in benign cases.

Conclusions:

• The Surecut needle biopsy is valuable for obtaining histological material from abdominal masses.
• It can supplement or potentially replace FNAB for diagnosing these lesions.
• Histological analysis offers crucial details beyond cytological examination.