Asphyxial Deaths Practice Questions

Q: A person was brought dead to the casualty and autopsy was performed to find the cause of death. Based on the autopsy findings shown in the image, what is the diagnosis?

Hanging. ***Hanging*** - The image shows **ligature marks on the neck**, consistent with hanging. Specifically, there is evidence of **fracture of the hyoid bone** and possibly other laryngeal cartilages (circled area), which are common findings in hanging, especially **judicial hanging** or cases with a significant drop. - The presence of the ligature mark **above the thyroid cartilage** and extending upwards towards the mastoid process is characteristic of hanging, creating an **oblique, upward-sloping** V-shaped or inverted U-shaped groove. - In hanging, the body weight acts as the constricting force, and the mark is typically **incomplete** on the side opposite to the suspension point. *Throttling* - Throttling involves **manual compression of the neck** by human hands. It typically leaves **finger marks** and **bruises** on the neck, often irregular and distributed over a wider area. - While hyoid bone fractures can occur in throttling, the distinct, continuous **ligature mark** and the specific position of injuries seen in the image are less typical for manual strangulation. *Strangulation (general)* - Strangulation refers to compression of the neck by a constricting force, which can be manual (throttling), ligature (ligature strangulation), or by hanging. Without further context, this term is too broad and non-specific. *Ligature strangulation* - Ligature strangulation differs from hanging in that the constricting force is applied around the neck by a ligature (rope, wire, cloth), but the body is **not suspended**. - This typically produces **horizontal or transverse ligature marks** that are more uniform and circumferential, unlike the **oblique, upward-sloping marks** characteristic of hanging. - The ligature mark in strangulation is usually **complete** around the neck and positioned lower, often at the level of the thyroid cartilage.

Q: The dead body shows the following finding as seen in the image. What is the most likely cause of death?

Hanging. ***Hanging*** - The image displays a **ligature mark** that is **oblique** and **incomplete**, which is characteristic of hanging due to the upward pull of the ligature - The mark is typically found **high on the neck**, often above the thyroid cartilage - Position of the mark corresponds to the point of suspension - May show vital signs like congestion above the ligature mark *Throttling* - **Throttling** (manual strangulation) involves direct compression of the neck by human hands - Leaves **finger marks**, **bruises**, or **abrasions** on the neck, typically on the sides - Does not produce a ligature mark; instead shows evidence of fingertip pressure - Marks are usually **horizontal** and scattered around the neck *Choking* - **Choking** is obstruction of the internal air passages, usually by **food or foreign objects**, leading to asphyxia - Does not involve external compression of the neck or leave a ligature mark - Diagnosis typically made by finding obstructing material in the airway at autopsy *Smothering* - **Smothering** involves obstruction of the external air passages (mouth and nose), preventing air entry - Usually **no specific marks on the neck**; may show injuries around mouth and nose - Does not involve a ligature or neck compression

Q: Identify the injury pattern given in the image.

Ligature mark. ***Ligature mark*** - A **ligature mark** is a depression or furrow left on the skin, typically around the neck, caused by a cord, rope, or other constricting material. - This type of mark is indicative of strangulation or hanging, where the pressure of the ligature leaves a distinct impression on the skin. *Graze abrasion* - A **graze abrasion** involves superficial scraping of the outer layers of the skin due to tangential force. - It often appears as a broad, irregular area of denuded skin, unlike the linear, defined mark seen in the image. *Imprint abrasion* - An **imprint abrasion** occurs when a patterned object presses against the skin, leaving a distinctive impression of its surface. - While it involves a pattern, it is typically a broader contact area rather than a narrow, constricting line. *Pressure abrasion* - A **pressure abrasion** results from sustained pressure on a small area of skin, often over a bony prominence. - While it involves pressure, it usually leads to localized skin damage (e.g., decubitus ulcer formation) rather than the circumferential marking of a ligature.

Q: The dead body of a child was recovered from a river with froth around his mouth, which reappeared even after wiping it off. Which postmortem finding is not seen in this case?

High concentration of arsenic from shaft of hair. ***High concentration of arsenic from the shaft of hair*** - The presence of arsenic in hair is indicative of chronic **arsenic poisoning**, which is unrelated to drowning. - The scenario describes a body recovered from a river with froth, suggesting **drowning**, not poisoning. *Voluminous and ballooned out lungs* - This is a classic postmortem finding in drowning due to the aspiration of water and air trapping, leading to **pulmonary emphysema acquosum**. - The lungs appear large and distended, often with impressions of the ribs on their surfaces. *Cadaveric spasm with mud in a closed fist* - **Cadaveric spasm** (instantaneous rigor) can occur in cases of violent death, intense physical exertion, or emotional stress just before death, often seen in drowning victims. - Finding foreign material like mud or weeds clutched tightly in the hand is a significant indicator that the victim was **alive and struggling** in the water during submersion. *Paltauf's hemorrhage in subpleura* - **Paltauf's hemorrhages** are small, pinpoint hemorrhages found under the pleural surface (subpleural) and are a characteristic sign of drowning. - They result from the rupture of capillaries due to the sudden increase in intrathoracic pressure during the struggle to breathe underwater.

Q: A girl from the village was found dead in the lake and was taken out. It is a case of ante mortem drowning. All are true about this case except?

Washerman hand and finger. ***Washerman hand and finger*** - **Washerman's hand and feet** (cutis anserina) refers to the wrinkled, sodden appearance of skin on the palms and soles due to prolonged immersion in water. - This is a **post-mortem change** that develops after death as a result of water absorption into the skin, typically appearing after **2-3 hours** of immersion. - While it indicates immersion in water, it does **not specifically signify ante-mortem drowning** as it can occur in bodies submerged after death (post-mortem submersion). - This is the **correct answer** to the "except" question as it is not a vital sign of ante-mortem drowning. *Froth on nose and mouth* - **Fine, white, tenacious froth** (mushroom-like foam) at the nose and mouth is a classic sign of **ante-mortem drowning**. - Results from violent mixing of air, mucus, and water in the airways during respiratory efforts while drowning. - This is a **vital sign** indicating the person was alive during submersion. *Cadaveric spasm in hand muscle* - **Cadaveric spasm** (instantaneous rigor mortis) can occur in **ante-mortem drowning** when the victim grasps objects like weeds, mud, or clothes in the final moments before death. - This represents a **vital phenomenon** reflecting a final act of vitality and strongly suggests the person was alive and conscious at the moment of submersion. *Water in the stomach* - Presence of water in the stomach is a common finding in **ante-mortem drowning** as the victim actively swallows water during the struggle and aspiration phase. - Indicates **vital swallowing** during life, supporting the diagnosis of ante-mortem drowning. - Typically, more than **500 mL** of water in stomach suggests ante-mortem drowning.

Q: On conducting the autopsy on a victim of hanging, the ligature mark is seen at the lower 1/3rd of the neck. The victim is seen to have a protruded tongue. He was found with his head hanging to his left side with saliva dribbling from the left angle of his mouth. The right pupil appears constricted and there is ptosis (drooping) of the right eyelid. Compression of which of the following structures is the most probable reason for the unilateral ptosis in this case?

Cervical sympathetic chain. ***Cervical sympathetic chain*** - The combination of **unilateral ptosis**, **miosis** (constricted pupil), and sometimes **anhidrosis** (lack of sweating) is characteristic of **Horner's syndrome**, which results from damage to the **cervical sympathetic chain**. - Hanging can cause compression or injury to this chain, leading to the observed **Horner's syndrome** on the ipsilateral side of the injury. *Left vagus nerve* - Compression of the **vagus nerve** is associated with cardiac arrhythmias, bradycardia, or gastric disturbances, not directly with ptosis. - The symptoms observed are specific to sympathetic dysfunction, not parasympathetic vagal stimulation. *Right internal jugular vein* - Compression of the **internal jugular vein** would cause venous congestion and edema in the head and neck, not neurological signs like ptosis or miosis. - While it can be injured in hanging, it does not directly explain the specific neurological findings. *Right internal carotid artery* - Compression of the **internal carotid artery** could lead to cerebral ischemia or stroke symptoms, such as weakness or sensory deficits, but not typically isolated ptosis and miosis. - The observed symptoms point to a specific sympathetic pathway disruption rather than arterial occlusion.

Q: The friend and victim had alcohol and got into an argument over a common girlfriend, following which the friend kills the victim by sitting on his chest and covering his nose and mouth. This is an example of?

Smothering. ***Smothering*** - This scenario describes **manual obstruction** of the mouth and nose, preventing air entry without external neck compression. - The act of sitting on the chest further restricts respiratory movements, contributing to **asphyxia**. *Gagging* - Gagging refers to the obstruction of the **oral cavity** due to material placed inside the mouth, typically to prevent speaking or crying out. - While it can contribute to asphyxia, the primary mechanism described here involves external covering of both nose and mouth. *Choking* - Choking involves the **internal obstruction** of the airway, usually by a foreign body lodged in the pharynx or larynx. - This scenario explicitly details external occlusion of the respiratory orifices, not internal blockage. *Throttling* - Throttling is a form of **manual strangulation** that involves direct compression of the neck by hands or forearm. - The description of covering the nose and mouth rather than compressing the neck rules out throttling.

Q: The dead body of a 20 year old man found in the sea was brought in for postmortem examination. Which of the following findings would you see in seawater drowning? 1. Hemoconcentration 2. Pulmonary edema 3. Hyponatremia 4. Hypernatremia 5. Hemolysis

1 and 4. ***1 and 4*** - In **seawater drowning**, the hypertonic seawater (3-4% salt) creates an osmotic gradient that pulls plasma fluid from the blood into the alveoli, leading to **hemoconcentration**. - The absorption of hypertonic seawater into the bloodstream results in **hypernatremia** and hyperchloremia. - These are the characteristic electrolyte and hematologic findings specific to seawater drowning. *2, 4 and 5* - While **hypernatremia** is correct, this option incorrectly includes **pulmonary edema** (which is non-specific to drowning type) and **hemolysis** (which is characteristic of freshwater drowning, not seawater). - **Hemolysis** occurs in freshwater drowning when hypotonic water enters the bloodstream, causing red blood cells to swell and lyse. *2, 3 and 5* - This option is incorrect as it includes findings characteristic of **freshwater drowning**: **hyponatremia** and **hemolysis**. - In freshwater drowning, hypotonic water absorption causes hemodilution (not hemoconcentration), leading to hyponatremia and hemolysis. - **Pulmonary edema** is present in both types but does not differentiate between them. *1 and 3* - While **hemoconcentration** is correct for seawater drowning, **hyponatremia** is incorrect. - Hyponatremia is a feature of freshwater drowning due to dilution of serum sodium by absorbed hypotonic water.

Q: A 42-year-old man is found hanging from a ceiling beam with a rope around his neck. At autopsy, which of the following findings would be most consistent with suicidal hanging rather than homicidal strangulation?

Inverted V-shaped mark. ***Inverted V-shaped mark*** - In **suicidal hanging**, the ligature is typically suspended from above, creating an **inverted V-shaped mark** on the neck where the knot is located. - This results from the **weight of the body pulling downwards**, causing the ligature to ascend towards the suspension point. - The mark is **oblique, incomplete posteriorly**, and directed upward toward the point of suspension. *Circular continuous mark* - A **circular continuous mark** is more characteristic of **manual strangulation** or a tightly applied ligature in homicidal strangulation where the force is applied horizontally around the entire neck. - This type of mark suggests a **uniform pressure** around the neck, often seen when the body is not suspended. *Horizontal ligature mark* - A **horizontal ligature mark** around the neck is more indicative of **homicidal strangulation** where the force is applied directly and continuously around the neck, or when the body remains horizontal during the act. - In hanging, the suspension point usually prevents a perfectly horizontal mark. *Multiple parallel marks* - **Multiple parallel marks** are generally indicative of **repeated application of force** or different ligature materials, which is more commonly seen in **homicidal strangulation** or a struggle. - In suicidal hanging, a single, clear ligature mark is typical.

Question 1

A person was brought dead to the casualty and autopsy was performed to find the cause of death. Based on the autopsy findings shown in the image, what is the diagnosis?

Accepted Answer

Hanging

Answer

Throttling

Answer

Strangulation

Answer

Ligature strangulation

Question 2

A female was found dead in her bedroom. The room was not locked from inside. Her blood alcohol value was found to be 350 mg/dL. The picture taken at the post mortem is shown below. The diagnosis is? (AIIMS Nov 2018, AIIMS Nov 2017)

Accepted Answer

Throttling

Answer

Traumatic asphyxia

Answer

Café coronary

Answer

Bansdola

Question 3

The dead body shows the following finding as seen in the image. What is the most likely cause of death?

Accepted Answer

Hanging

Answer

Throttling

Answer

Choking

Answer

Smothering

Question 4

Identify the injury pattern given in the image.

Accepted Answer

Ligature mark

Answer

Graze abrasion

Answer

Imprint abrasion

Answer

Pressure abrasion

Question 5

The dead body of a child was recovered from a river with froth around his mouth, which reappeared even after wiping it off. Which postmortem finding is not seen in this case?

Accepted Answer

High concentration of arsenic from shaft of hair

Answer

Voluminous and ballooned out lungs

Answer

Cadaveric spasm with mud in closed fist

Answer

Paltauf's hemorrhage in sub pleura

Question 6

A girl from the village was found dead in the lake and was taken out. It is a case of ante mortem drowning. All are true about this case except?

Accepted Answer

Washerman hand and finger

Answer

Froth on nose and mouth

Answer

Cadaveric spasm in hand muscle

Answer

Water in the stomach

Answer

Diatoms test positive

Question 7

On conducting the autopsy on a victim of hanging, the ligature mark is seen at the lower 1/3rd of the neck. The victim is seen to have a protruded tongue. He was found with his head hanging to his left side with saliva dribbling from the left angle of his mouth. The right pupil appears constricted and there is ptosis (drooping) of the right eyelid. Compression of which of the following structures is the most probable reason for the unilateral ptosis in this case?

Accepted Answer

Cervical sympathetic chain

Answer

Left vagus nerve

Answer

Right internal jugular vein

Answer

Right internal carotid artery

Question 8

The friend and victim had alcohol and got into an argument over a common girlfriend, following which the friend kills the victim by sitting on his chest and covering his nose and mouth. This is an example of?

Accepted Answer

Smothering

Answer

Gagging

Answer

Choking

Answer

Throttling

Question 9

The dead body of a 20 year old man found in the sea was brought in for postmortem examination. Which of the following findings would you see in seawater drowning?

1. Hemoconcentration
2. Pulmonary edema
3. Hyponatremia
4. Hypernatremia
5. Hemolysis

Accepted Answer

1 and 4

Answer

2,4 and 5

Answer

2,3 and 5

Answer

1 and 3

Question 10

A 42-year-old man is found hanging from a ceiling beam with a rope around his neck. At autopsy, which of the following findings would be most consistent with suicidal hanging rather than homicidal strangulation?

Accepted Answer

Inverted V-shaped mark

Answer

Circular continuous mark

Answer

Horizontal ligature mark

Answer

Multiple parallel marks

Asphyxial Deaths — MCQs

Asphyxial Deaths — MCQs

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