Morphological variations in malleus among the male and female

Authors

  • Mariya Azam Khattak Department of Anatomy, Bahria University of Medical and Dental College, Karachi, Pakistan
  • Ambreen Usmani Department of Anatomy, Bahria University of Medical and Dental College, Karachi, Pakistan
  • Sohail Aslam Department of ENT, PNS Shifa Hospital, Karachi, Pakistan
  • Saneed Khaliq Department of Anatomy, Bahria University of Medical and Dental College, Karachi, Pakistan
  • Ayesha Mehwish Department of Anatomy, Bahria University of Medical and Dental College, Karachi, Pakistan
  • Rida Rubab Ahmed Department of Anatomy, Bahria University of Medical and Dental College, Karachi, Pakistan

DOI:

https://doi.org/10.47391/JPMA.6307

Abstract

Objective: To determine gender-based morphological variations in malleus.

Method: The cross-sectional descriptive study was conducted at the Ear-Nose-Throat and Radiology departments of a public-sector hospital in Karachi, from January 20 to July 23, 2021, and comprised subjects of either gender aged 10-51 years who had intact ear ossicles. They were divided into equal male and female groups. After history and a thorough examination of the ear, high-resolution computed tomography scan of petrous temporal bone was done. The images were studied for malleus, to measure the parameters of its head width, length and shape of manubrium, and total length of malleus for possible morphological variations along gender lines. Data was analysed using SPSS 23.

Results: Of the 50 subjects, 25(50%) were males with mean width of the head 3.04±0.34mm, mean length of manubrium 4.47±0.48mm, and mean total length of malleus 7.76±0.60mm. The corresponding values in 25(50%) females were 3.00±0.28mm, 4.31±0.45mm and 7.41±0.51mm. The total length of malleus between both genders was significantly different (p= 0.031). The shape of manubrium was straight in 10(40%) males and 8(32%) females, and curved in 15(60%) males and 17(68%) females.

Conclusion: Width of head, length of manubrium and total length of malleus were different in gender terms, but the total length of malleus was significantly different.

Key Words: Ear, Malleus, Computed tomography.

Author Biographies

Ambreen Usmani, Department of Anatomy, Bahria University of Medical and Dental College, Karachi, Pakistan

Professor, HOD Anatomy, Principal and Dean

Sohail Aslam, Department of ENT, PNS Shifa Hospital, Karachi, Pakistan

SURG Capt., HOD of Ent department, Associate Professor 

Saneed Khaliq, Department of Anatomy, Bahria University of Medical and Dental College, Karachi, Pakistan

Assitant Professor Anatomy

Ayesha Mehwish, Department of Anatomy, Bahria University of Medical and Dental College, Karachi, Pakistan

Senior Lecturer Anatomy

Rida Rubab Ahmed, Department of Anatomy, Bahria University of Medical and Dental College, Karachi, Pakistan

Assitant Professor Anatomy

Published

2023-02-15

How to Cite

Azam Khattak, M., Usmani, A., Aslam, S., Khaliq, S., Ayesha Mehwish, & Ahmed, R. R. (2023). Morphological variations in malleus among the male and female. Journal of the Pakistan Medical Association, 73(2), 319–322. https://doi.org/10.47391/JPMA.6307

Issue

Section

Research Article