Medicolegal Autopsies — MCQs

Medicolegal Autopsies Indian Medical PG Practice Questions and MCQs

Question 11: Spalding's sign is seen in:

A. Stillborn
B. Liveborn
C. Premature
D. Deadborn (Correct Answer)

Explanation: **Explanation:** **Spalding’s Sign** is a classic radiological indicator of **intrauterine fetal death (IUFD)**. It refers to the irregular overlapping of the fetal cranial bones due to the liquefaction of the brain matter and the loss of intracranial pressure following death. 1. **Why "Deadborn" is correct:** A **deadborn (macerated)** fetus is one that has died in utero and remained there for at least 24–48 hours. During this period, aseptic autolysis occurs. As the brain tissue softens and liquefies, the skull bones lose their internal support and collapse inward, leading to the characteristic overlapping seen on X-ray or Ultrasound. 2. **Why other options are incorrect:** * **Stillborn:** While often used interchangeably with deadborn, "stillborn" technically includes both **macerated** (dead for some time) and **fresh** (died during labor) fetuses. Spalding’s sign specifically requires time for autolysis to occur; it is not seen in "fresh" stillbirths. * **Liveborn:** In a live birth, the cranial bones may overlap slightly during labor (molding), but they return to normal positions shortly after birth. The brain provides internal pressure, preventing the pathological collapse seen in Spalding's sign. * **Premature:** Prematurity refers to gestational age, not the state of vitality. A premature baby can be born alive or dead. **High-Yield Clinical Pearls for NEET-PG:** * **Timeframe:** Spalding’s sign usually appears **24 to 72 hours** after fetal death. * **Deuel’s Halo Sign:** Another sign of IUFD; it is the appearance of a radiolucent halo around the fetal head due to edema of the scalp soft tissues. * **Robert’s Sign:** The presence of gas in the fetal heart and large vessels (occurs as early as 12 hours after death). * **Maceration:** This is a sterile process of decomposition. If signs of maceration are present, it is definitive proof that the fetus was **deadborn**.

Question 12: Which of the following is NOT important in the diagnosis of brain death?

A. EEG
B. ECG (Correct Answer)
C. Absence of brainstem reflexes
D. Body temperature

Explanation: ### Explanation The diagnosis of **Brain Death** (specifically Brainstem Death) is a clinical diagnosis based on the irreversible loss of all brain functions, including the brainstem. **Why ECG is the correct answer:** Brain death is defined by the permanent cessation of cerebral and brainstem activity. However, the heart possesses an intrinsic pacemaker (the SA node) that can continue to generate electrical impulses and mechanical contractions independently of the brain, provided there is adequate oxygenation (via a ventilator). Therefore, an **ECG (Electrocardiogram)** showing cardiac activity does not rule out brain death. **Analysis of other options:** * **Absence of brainstem reflexes:** This is the cornerstone of clinical diagnosis. Tests include the absence of pupillary, corneal, oculocephalic (doll’s eye), oculovestibular (caloric), and gag reflexes, along with a positive **Apnea Test**. * **Body temperature:** To certify brain death, reversible causes of coma must be excluded. **Hypothermia** (typically $<32^\circ\text{C}$ or $90^\circ\text{F}$) can mimic brain death by depressing CNS function and reflexes. The patient must be normothermic before testing. * **EEG (Electroencephalogram):** While brain death is primarily a clinical diagnosis, the EEG is a recognized **confirmatory (ancillary) test**. An "isoelectric" or "flat" EEG (electrocerebral silence) supports the diagnosis in cases where clinical testing is inconclusive. **High-Yield Clinical Pearls for NEET-PG:** * **Prerequisites for testing:** Normothermia, absence of sedative drugs/neuromuscular blockers, and absence of severe metabolic/endocrine derangements. * **The Apnea Test:** The most important clinical test; it confirms the absence of respiratory drive despite a rise in $PaCO_2$ to $\geq 60\text{ mmHg}$. * **Legal Aspect:** In India, the **Transplantation of Human Organs Act (THOA), 1994**, provides the legal framework for brain death certification, requiring a board of four medical experts to conduct two sets of tests 6 hours apart.

Question 13: In rigor mortis, what happens to the muscles?

A. Stiffens
B. Shortens
C. Stiffens and shortens (Correct Answer)
D. Stiffens and lengthens

Explanation: **Explanation:** **Rigor Mortis** is a post-mortem change characterized by the stiffening and slight shortening of muscles due to the depletion of **Adenosine Triphosphate (ATP)**. 1. **Why Option C is Correct:** After death, cellular respiration ceases, leading to a total loss of ATP. ATP is required to break the cross-bridges between **actin and myosin** filaments. Without ATP, these filaments remain permanently locked in a contracted state. This chemical binding results in the muscle becoming **stiff**. Additionally, because the actin filaments slide over the myosin filaments during this process, the muscle undergoes a slight but measurable **shortening**. 2. **Why Other Options are Incorrect:** * **Option A:** While stiffening is the most prominent feature, it is incomplete without acknowledging the physical shortening of the muscle fibers. * **Option B:** Shortening alone does not describe the state of rigidity (hardness) that defines the condition. * **Option C:** Muscles never lengthen during rigor mortis; lengthening only occurs during the subsequent stage of secondary flaccidity (putrefaction). **High-Yield Clinical Pearls for NEET-PG:** * **Order of Appearance:** Rigor mortis follows **Nysten’s Law**, appearing first in the eyelids, then the face, neck, trunk, upper limbs, and finally the lower limbs. It disappears in the same order. * **Timeline (Rule of 12):** In temperate climates, it typically takes 12 hours to form, lasts for 12 hours, and takes 12 hours to disappear. * **Simulated Rigor:** Do not confuse with **Cadaveric Spasm** (instantaneous rigor due to high emotional/physical stress at death) or **Heat Stiffening** (coagulation of proteins due to high temperatures). * **Biochemical Basis:** It is a purely chemical phenomenon, independent of the nervous system.

Question 14: Which method is not used for autopsy?

A. Virchow
B. Rokitansky
C. Lettulle
D. Thomas (Correct Answer)

Explanation: **Explanation:** In forensic pathology, there are four primary techniques for evisceration during an autopsy. The correct answer is **Thomas**, as there is no recognized autopsy technique by this name. It is often used as a distractor in exams. **Why the other options are incorrect (The 4 Standard Methods):** 1. **Virchow’s Method (Option A):** This is the most common method used in forensic autopsies. It involves the **removal of organs one by one**. While it is excellent for detailed examination of individual organs, it destroys the anatomical relationship between them. 2. **Rokitansky’s Method (Option B):** This involves **in-situ dissection** of organs. The organs are examined within the body cavity itself and are not removed as a block. This is rarely used today but is historically significant. 3. **Lettulle’s Method (Option C):** This is the **"En Masse"** technique. All thoracic, abdominal, and pelvic organs are removed as one single, large block. It is the fastest method and preserves the connections between different organ systems (e.g., the hepatobiliary system and the GI tract). 4. **Ghon’s Method (Not listed, but essential):** This is the **"En Bloc"** technique. Organs are removed in functionally related blocks (e.g., thoracic block, abdominal block, urogenital block). **High-Yield NEET-PG Pearls:** * **Virchow:** Organ by organ (Most common). * **Lettulle:** En Masse (Best for preserving anatomical continuity). * **Ghon:** En Bloc (Functional groups). * **Rokitansky:** In-situ (No removal). * **Modified Wyne-Zanetti Method:** A specialized technique often used for infants or cases involving complex congenital anomalies.

Question 15: Part I of the death certificate deals with?

A. Immediate cause and the direct underlying cause which started the whole trend of events leading to death. (Correct Answer)
B. Any significant associated diseases that contributed to the death but did not directly lead to it.
C. Approximate interval between onset and cause of death.
D. The mode of death.

Explanation: The Medical Certification of Cause of Death (MCCD) is a high-yield topic for NEET-PG. The death certificate is divided into two primary sections: **Part I** and **Part II**. ### **Why Option A is Correct** **Part I** is dedicated to the **sequence of events** leading directly to death. It follows a reverse chronological order: * **Line (a):** Immediate cause (the final disease or complication). * **Line (b) & (c):** Intervening causes. * **Line (d):** The **Underlying Cause**. This is the most important entry; it is the disease or injury that initiated the train of morbid events leading directly to death. ### **Analysis of Incorrect Options** * **Option B:** This describes **Part II** of the death certificate. Part II is used for "Other Significant Conditions"—diseases that contributed to the fatal outcome but were not part of the direct sequence recorded in Part I (e.g., a patient dies of a Myocardial Infarction in Part I, but had chronic Diabetes in Part II). * **Option C:** While the **time interval** between onset and death is recorded in a column next to Part I and II, it is a descriptive element of the sequence, not the definition of Part I itself. * **Option D:** The **Mode of Death** (Coma, Syncope, Asphyxia) should **never** be recorded on a death certificate. The certificate requires the *etiological cause*, not the physiological mode of dying. ### **High-Yield Clinical Pearls for NEET-PG** * **International Form:** The WHO recommended death certificate format is used globally to ensure statistical uniformity. * **Underlying Cause:** This is the specific diagnosis used for coding mortality statistics (ICD-10/11). * **Legal Tip:** In medicolegal cases, the doctor should not issue a death certificate but should instead inform the police for a legal autopsy. * **Prohibited Terms:** Avoid symptomatic terms like "cardiac arrest" or "respiratory failure" as the primary cause; these are modes of death, not causes.

Question 16: Which of the following features can be noted on postmortem examination of a person who died due to drowning?

A. Washer woman's hand
B. Cadaveric spasm
C. Paltauf's hemorrhages
D. All of the above (Correct Answer)

Explanation: ### Explanation Drowning is a form of asphyxial death caused by the submersion of the mouth and nostrils in a liquid. The postmortem findings are categorized into external and internal signs, all of which are represented in the options. **1. Washerwoman’s Hand (Option A):** This is an external sign of prolonged immersion. The skin of the hands and soles becomes bleached, wrinkled, and sodden (macerated) due to the imbibition of water into the thick keratin layers. While characteristic of drowning, it is a sign of **immersion** rather than the act of drowning itself. **2. Cadaveric Spasm (Option B):** This is an instantaneous onset of rigor mortis at the moment of death. In drowning victims, it is a **diagnostic sign** of "ante-mortem" drowning when the victim's hands are found tightly clutching weeds, mud, or sand from the water bed, indicating a struggle for life. **3. Paltauf’s Hemorrhages (Option C):** These are internal findings consisting of sub-pleural ecchymoses (large, pale, ill-defined hemorrhages) found on the surfaces of the lungs. They occur due to the rupture of alveolar walls from increased intrapulmonary pressure and are typically seen in the lower lobes. **Conclusion:** Since all three features are classic findings in drowning deaths, **Option D** is the correct answer. ### High-Yield Clinical Pearls for NEET-PG: * **Froth:** Fine, white, leathery, tenacious froth at the mouth and nose is the most reliable external sign of ante-mortem drowning. * **Diatom Test:** Detection of acid-resistant silica shells (diatoms) in the **bone marrow** (femur) is considered the "gold standard" for confirming ante-mortem drowning in decomposed bodies. * **Emphysema Aquosum:** Lungs appear heavy, bulky, and edematous, often overlapping in the midline, and "pit on pressure."

Question 17: In cases of custodial deaths, which of the following is NOT a guideline issued by the National Human Rights Commission regarding autopsy procedures?

A. A magisterial inquiry must be conducted and reported within 24 hours of the occurrence.
B. Clothing should be carefully removed, preserved, and sealed by the police. (Correct Answer)
C. Video recording of the post-mortem examination is to be done.
D. All reports, including post-mortem, videograph, and magisterial inquiry reports, must be sent to the Commission within 2 months of the incident.

Explanation: ### Explanation **1. Why Option B is the Correct Answer (The Incorrect Guideline):** In custodial death autopsies, the **Medical Officer (Doctor)**—not the police—is responsible for the careful removal, examination, and preservation of clothing. The NHRC guidelines emphasize that the doctor must examine the clothes for tears, bloodstains, or gunpowder residue before removal. If the police handle the clothing prior to the autopsy, it risks tampering or loss of trace evidence, which is critical in cases where foul play or torture is suspected. **2. Analysis of Incorrect Options (Correct NHRC Guidelines):** * **Option A:** A **Magisterial Inquiry** (under Section 176 CrPC) is mandatory for all custodial deaths. The NHRC requires that the occurrence of death be reported to them within **24 hours**. * **Option C:** **Video filming** of the entire post-mortem examination is mandatory to ensure transparency, document the external/internal findings, and prevent the suppression of facts. * **Option D:** The NHRC mandates a strict timeline. The complete set of documents (PM report, Videography, Magisterial Inquiry, and Chemical Analysis) must be submitted to the Commission within **2 months**. **3. NEET-PG High-Yield Facts:** * **Section 176(1A) CrPC:** Specifically mandates a Judicial Magistrate/Metropolitan Magistrate inquiry for death, disappearance, or rape in custody. * **Inquest:** In custodial deaths, a **Magisterial Inquest** is mandatory (Police Inquest under Sec 174 CrPC is insufficient). * **NHRC Panel:** Autopsies should ideally be conducted by a board of two doctors to ensure impartiality. * **Body Preservation:** If a delay is expected, the body should be preserved at **4°C** to prevent decomposition, which can mask ante-mortem injuries.

Question 18: Which of the following procedures is followed while performing a post-mortem examination of the stomach?

A. Single ligation
B. Double ligation
C. Triple ligation
D. Directly cut open (Correct Answer)

Explanation: ### Explanation **Correct Answer: D. Directly cut open** In a routine medicolegal autopsy, the standard procedure for examining the stomach is to **directly cut it open** along its greater curvature. This is done to inspect the gastric contents (nature of food, smell, presence of pills/poisons) and the state of the gastric mucosa (congestion, ulceration, or corrosion). The underlying medical concept is that in a standard autopsy, the stomach is opened *in situ* or after removal to facilitate immediate examination. Ligation is only necessary when the stomach contents must be preserved without leakage for specific toxicological analysis. **Analysis of Incorrect Options:** * **A, B, and C (Ligation):** Ligation (tying) of the esophageal and pyloric ends is **not a routine procedure** for the examination itself. It is a preparatory step used only when there is a suspicion of poisoning. In such cases, **double ligation** is performed at both the cardiac (esophageal) and pyloric ends to prevent the escape of contents before the organ is placed in a preservative jar for the forensic science laboratory (FSL). Triple ligation has no standard application in forensic autopsy. **High-Yield Clinical Pearls for NEET-PG:** * **Opening Technique:** The stomach is always opened along the **greater curvature**. * **Preservation:** If poisoning is suspected, the stomach and its contents are preserved in **Saturated Saline** (except in cases of corrosive acid poisoning, where rectified spirit is used). * **Time Since Death:** The presence of an identifiable meal can help estimate the time since death (stomach usually empties 4–6 hours after a heavy meal). * **Smells to Note:** Bitter almonds (Cyanide), Garlic (Organophosphates/Arsenic), or Kerosene (Organophosphates) during the opening of the stomach.

Question 19: Fencing attitude in dead bodies is caused by and present in which of the following conditions?

A. Coagulation of proteins and present in ante-mortem burns
B. Coagulation of proteins and present in post-mortem burns
C. Coagulation of proteins and present in both ante-mortem and post-mortem burns (Correct Answer)
D. None of the above

Explanation: ### Explanation **The Correct Answer: C. Coagulation of proteins and present in both ante-mortem and post-mortem burns** **Underlying Medical Concept:** The **Pugilistic Attitude** (also known as the **Fencing Attitude**) is a post-mortem change observed in bodies exposed to high temperatures (extreme heat or fire). It is caused by the **heat-induced coagulation of muscle proteins** (albumin and globulin) and the subsequent dehydration of muscle fibers. Because the flexor muscles of the limbs are bulkier and more powerful than the extensor muscles, their contraction under heat leads to a characteristic posture: the arms are flexed at the elbows, the wrists are curled, and the knees are slightly bent, resembling a boxer’s or fencer’s stance. Crucially, this is a **physicochemical reaction** to heat and is independent of vital reactions; therefore, it occurs regardless of whether the person was alive (ante-mortem) or already dead (post-mortem) when the fire started. **Analysis of Incorrect Options:** * **Option A & B:** These are partially correct regarding the mechanism (coagulation) but incorrect because they limit the occurrence to only one state. Since the reaction is purely physical (heat acting on muscle tissue), it cannot be used to differentiate between ante-mortem and post-mortem burns. * **Option D:** Incorrect, as the mechanism and occurrence are well-established in forensic pathology. **High-Yield Clinical Pearls for NEET-PG:** * **Differential Diagnosis:** Do not confuse Pugilistic Attitude with **Cadaveric Spasm** (which occurs at the moment of death due to intense emotion/stress) or **Rigor Mortis** (which is a chemical change involving ATP depletion). * **Artifactual Fractures:** Intense heat can cause "Heat Fractures" (typically in the skull). These are characterized by irregular, crumbling edges, unlike the clean lines of ante-mortem mechanical trauma. * **Medicolegal Significance:** The presence of a pugilistic attitude does **not** indicate the cause of death; it only indicates that the body was exposed to intense heat after death or during the perimortem period. To prove ante-mortem burning, look for **soot in the airways** or **Carboxyhemoglobin** in the blood.

Question 20: Who investigates a dowry death?

A. Magistrate (Correct Answer)
B. Sub-inspector
C. Police
D. Medical officer

Explanation: **Explanation:** In India, the investigation of a death is known as an **Inquest**. Under the Code of Criminal Procedure (CrPC), there are two types of inquests: Police Inquest (Section 174) and Magistrate Inquest (Section 176). **Why Magistrate is Correct:** According to **Section 176 CrPC**, a Magistrate Inquest is mandatory in specific circumstances where there is a high suspicion of foul play or custodial negligence. A **dowry death** (death of a woman within 7 years of marriage under suspicious circumstances) falls under this category. The investigation is conducted by an Executive Magistrate (e.g., District Magistrate or Sub-divisional Magistrate) to ensure an impartial inquiry into the sensitive nature of the crime. **Analysis of Incorrect Options:** * **B & C (Sub-inspector/Police):** Under Section 174 CrPC, the police (usually a Sub-inspector) conduct inquests for routine suicides, accidents, or homicides. However, in cases of dowry deaths, the law mandates a higher level of scrutiny by a Magistrate. * **D (Medical Officer):** The role of the Medical Officer is to conduct the post-mortem examination (autopsy) and provide an opinion on the cause of death. They do not "investigate" the legal circumstances of the death. **High-Yield Facts for NEET-PG:** * **Mandatory Magistrate Inquest (Section 176 CrPC) occurs in:** 1. Dowry deaths (within 7 years of marriage). 2. Custodial deaths (death in police custody, prison, or psychiatric hospital). 3. Death due to police firing. 4. Exhumation (digging up a buried body for examination). * **Section 304B of the IPC** defines the punishment for dowry death. * **Section 113B of the Indian Evidence Act** creates a legal presumption of dowry death if cruelty was shown shortly before death.

Practice by Chapter

Objectives of Medicolegal Autopsy

Practice Questions

Autopsy Procedures

Practice Questions

External Examination

Practice Questions

Internal Examination

Practice Questions

Special Autopsy Techniques

Practice Questions

Organ Retention and Disposal

Practice Questions

Collection of Toxicological Samples

Practice Questions

Autopsy Report Writing

Practice Questions

Histopathology in Autopsies

Practice Questions

Microbiology in Autopsies

Practice Questions

Radiology in Autopsies

Practice Questions

Limitations and Artifacts

Practice Questions

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