Related Experiment Video
Updated: Jul 14, 2026

04:19
The Establishment of a Murine Mandibular Molar Extraction Socket Healing Model
Published on: January 13, 2023
Mongolian spots with involvement of mandibular area.
Kanlaya Tanyasiri1, Taro Kono, William Frederick Groff
1Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan. ktanyasiri@hotmail.com
The Journal of Dermatology
|May 31, 2007
Summary
Mongolian spots, a common finding in infants, can appear on the face, specifically along the trigeminal nerve. This case highlights facial Mongolian spots, differentiating them from nevus of Ota.
Area of Science:
- Dermatology
- Pediatrics
Background:
- Mongolian spots are common congenital hyperpigmentations.
- Facial Mongolian spots are rare but documented.
Observation:
- A 1-year-old boy presented with grayish pigmentation on the left face, neck, shoulder, upper arm, lower back, and buttock.
- The facial pigmentation followed the distribution of the mandibular branch of the trigeminal nerve.
Findings:
- This case report confirms Mongolian spots can manifest on the face along the trigeminal nerve distribution.
- The pigmentation was uniform in intensity.
Implications:
- Accurate diagnosis of facial Mongolian spots is crucial.
- Distinguishing facial Mongolian spots from nevus of Ota prevents misdiagnosis and unnecessary treatment.
Related Concept Videos
Assessment of the Mouth
A thorough mouth assessment, including inspection and palpation of the lips, gums, tongue, tonsils, uvula, and pharynx, is crucial in detecting potential health issues. Diseases ranging from oral cancer to systemic conditions like diabetes could be identified early through careful oral examination. This article provides a detailed guide on conducting a comprehensive mouth assessment.
Mouth Inspection
The inspection begins with visually examining the mouth for symmetry, color, and size.
Mouth Inspection
The inspection begins with visually examining the mouth for symmetry, color, and size.
Endocarditis II: Clinical Features of Infective Endocarditis
Endocarditis can present various clinical features depending on the causative organism and the patient's underlying health conditions. Initially, the clinical features of infective endocarditis develop gradually, presenting with nonspecific symptoms that can be easily mistaken for other illnesses.General SymptomsEarly symptoms of infective endocarditis are fever, chills, weakness, malaise, fatigue, and weight loss. These symptoms reflect the systemic nature of the infection and the body's...
Rocky Mountain Spotted Fever
Rocky Mountain Spotted Fever (RMSF) is a severe tick-borne illness caused by Rickettsia rickettsii, a Gram-negative, coccobacillary bacterium. This pathogen is an obligate intracellular parasite, requiring a host cell for replication. Transmission occurs through the bite of an infected tick. In the United States, the most important vectors are Dermacentor variabilis (American dog tick) and Dermacentor andersoni (Rocky Mountain wood tick), though other tick species may also serve as vectors.

